Test Question Answers Flashcards by lucas Botyanski

Design deficiencies in a plant can be detected:

by conducting regular safety audits

if plant operators know their facility well

by having a second engineering firm review the design

during annual boiler inspections

by conducting regular safety audits

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Types of furnaces surround by brickwork?

Externally fired

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when chromium is added to steel it does what?

increases hardness and corrosion resistance making stainless steel (12%)

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NDE

Non-destructive examination for welding parts

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Steam traps may also remove out of the steam lines?

Air

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Boiler parts exposed to fire or extreme heat must be covered by?

Water/watertubes

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SOPs should be:

Printed in large numbers

Reviewed at regular intervals

Destroyed and replaced monthly

Attached to each revised copy.

Reviewed at regular intervals

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(4-082-4.3) Because of environmental concerns, it is no longer permissible to add ____________ to transformer oil.

Anti-foaming substances

Polyhlorinated biphenyls

Freon

Organic compounds

Polyhlorinated biphenyls

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Atmospheric burners are used for:

small heating and power boilers under 500 kW

Ring type burners

Coal firing

Preheating the combustion air

small heating and power boilers under 500 kW

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A process that causes fires to endure and renew themselves is:

Temperature

A reducing agent

An oxidizing agent

Molecular activity due to high temperature

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When the temperature of an object is raised, its increase in surface area is proportional to its:

Initial length and final temperature.

Initial area and temperature rise.

Volume and initial temperature.

Initial length and temperature rise.

Shape.

Initial area and temperature rise.

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The First Law of Thermodynamics states that heat and work

Cannot co-exist

Are mutually convertible

Are unrelated

Are identical

Produce friction

Are mutually convertible

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The basic food source for all organisms is:

fungi

plankton

microorganisms

plants

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What efficiency can be attained by fabric filters be in a plant?

75% efficient

87% efficient

95% efficient

+99% efficient

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An extensive physical property is one that is:

Dependent on the amount of matter

Independent of the amount of matter

Dependent on the volume

Dependent on the temperature of the object

The same for all known matter

Dependent on the amount of matter

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A thermostatic steam trap is controlled by the:

Difference in velocity between condensate and steam

air pressure built up on top of disk

Temperature difference between condensate and steam

Bucket, which flips when filled with condensate

Temperature difference between condensate and steam

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One of the most important features of the first lines drawn in a sketch is that they:

Are to precise scale

Are bold

Must all show the object outline

Show the main proportion of the sketch

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If a fuel-air mixture is below the lower explosive limit, the mixture:

Is said to be lean

Is explosive

Is too rich

Must have a source of ignition

Is said to be lean

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if an area contains hazardous concentrations of flammable gases or vapours under normal operating conditions, electrical equipment must be designed for use in the area. This is designated as:

Class 1

Class 2

Class 3

Class 4

Class 1

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An example of a chemical property is the:

Density of copper

Temperature of boiler water

Thermal conductivity of steel

Heating value of propane

Hardness of aluminum

Heating value of propane

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Atoms that have greater than 3 electrons in the outer shell are:

Positively charged

Good conductors

Neutrally charged

Poor conductors

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A frequent cause of serious accidents with valves is __________________.

Improperly sized valves leading to flow problems

lack of maintenance

inadequate operational training leading to abuse

unsuitable materials for the operating pressures and temperatures

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lear definitions for terms and equipment relating to refrigeration and air conditioning equipment are defined in the _____.

CSA-B51

CSA-B52

ASME Section I

ASME Section VII

B-52

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Which of the following is NOT a type of oil burner?

Atmospheric burners

Steam atomizing burners

Mechanical or pressure atomizing burners

Centrifugal or rotary cup burners

Atmospheric burners

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What is a nozzle used for on a pressure vessel shell? it is used to attach fittings to the vessel It is used to connect feed water piping to the vessel It is used to attach gauges to the vessel It is used to attach safety valves to the vessel

it is used to attach fittings to the vessel

(4-057-3.8) When a modulating mechanical atomization system is used with an oil burner: Air pressure at the burner should be 70 kPa Dry saturated steam should be used Very high pump pressure is required for correct atomization The fuel must be preheated to 90 degrees C

The fuel must be preheated to 90 degrees C

The balanced equation for complete combustion of sulfur is S + O2 = _________: SO2 + heat 2SO2 + heat SO2 SO2 + S

SO2 + heat

Reclaiming a work site can be very expensive. What is one way of reducing this cost? Incentives can be in place for workers. By using environmentally friendly materials during construction and operation. Conducting plant operations in an environmentally friendly way from the beginning. Emergency Response Plans must be followed while operations are being conducted.

Conducting plant operations in an environmentally friendly way from the beginning.

A tube expander is used to: Break loose scale inside the tube Break loose scale outside the tube Expand and flare the tube Bead the tube

Bead the tube

A bellows corrugated expansion joint is suitable for pressures up to approximately _______ kPa: 500 1000 2000 Unlimited

2000

When a float is used for measuring level, and installation within a vessel is impractical, the float is installed in a Float manometer Float cage Differential head meter Diaphragm level indicator

Float cage

The term "particulate" is often applied to what? bottom ash which is flushed out of the bottom of the furnace cooling tower sludge which is recycled fly ash which enters the atmosphere the waste from a Flue Gas De-sulphurization process

fly ash which enters the atmosphere

The property that determines whether a material can be easily magnetized is called: Conductivity Fluctuation Magnetism Permeability

Permeability

The electrical power necessary for arc welding may be supplied by: Solar cells Capacitors Batteries Transformers

Transformers

An orifice plate with a round opening that is centred in the middle of the plate is called a: Concentric orifice Eccentric orifice Concentric flange Centralized flow

Concentric orifice

A PLC needs to be able to check itself for safe operation. This occurs during the: input scan housekeeping scan maintenance scan program scan

housekeeping scan

When using the Left Hand Rule for Motors, the index finger represents: Magnetic flux direction, for generators Conductor motion direction, for motors Flux direction, for motors Direction of current flow, for motors.

Conductor motion direction, for motors

An area in which easily ignited material fibers are handled or manufactured has an Electrical Designation of: Class 1 Class 2 Class 3 Class 4

Class 3

In the First Law of Thermodynamics, heat supplied = increase in internal energy + ____________: Energy supplied. Energy absorbed. Work input. Work done. Power output.

Work done.

Boiler handholes are openings that are use to: Enter and inspect the boiler furnace Inspect the boiler uptake Inspect the boiler shell or drum Inspect the windbox

Inspect the boiler shell or drum

One of the national legislative items which each jurisdiction in Canada has adopted as part of their applicable Act and/or Regulations is the: ASME Codes ANSI Codes CSA B52 NFPA Codes NAFTA Codes

CSA B52

Which of the following extinguishers would ordinarily be used to combat a Class “C” fire: Carbon dioxide and Foam Carbon dioxide and Dry chemical Foam and Dry chemical Foam and Water

Carbon dioxide and Dry chemical

On older boilers, the masonry work that surrounded the furnace was termed: The boiler firebox Masonry The boiler setting The boiler casing

The boiler setting

A diaphragm draft gauge on a furnace indicates the draft in: mm of water column kPa MPa psi

mm of water column

What is impact strength also known as? yield strength ultimate strength toughness brittleness

toughness

Up to and including DN 300 mm pipe, the "nominal pipe size” refers to a pipe's nominal circumference nominal inside diameter nominal outside diameter nominal wall thickness

nominal inside diameter

With regards to greenhouse gases, which of the following is the most powerful? NOx H2O Flourinated gases Methane

Flourinated gases

Condensation losses in steam can be avoided by: Heating the steam to saturation temperature Using wet steam Using only high pressure steam Installing steam separators Using superheated steam

Using superheated steam

What is a benefit of a double-welded joint? it is quicker to set up it doesn't require tack welds it requires less skill it reduces residual stress

it reduces residual stress

Pipe insulation, when installed on pipes that carry cold fluids, prevents the requirements for heat tracing Water hammer at elbows Expansion and contraction Sweating and corrosion

Sweating and corrosion

Medium carbon steel becomes difficult to weld when its carbon content exceeds: 10% 3. 5% 0. 35% 0. 25%

0.35%

For the determination of what mechanical property is a Brinnell test conducted? toughness ductility strength hardness

hardness

Besides a flashlight, what else is used during a visual inspection of a weld? microscopes fluorescent lights magnifying glasses chisels

magnifying glasses

The ignition temperature of a fuel/air mixture is the: Lowest temperature at which a mixture will burn. Temperature at which it becomes a lean mixture. Highest mixture temperature before the fuel turns to vapour. Temperature at which the mixture is above the boiling point.

Lowest temperature at which a mixture will burn.

An electrical distribution system is composed of service, feeders and: Secondary circuits Primary circuits Branch circuits Trunk circuits

Branch circuits

A flowing liquid has kinetic energy as a function of its velocity. When its velocity increases Potential energy in the form of pressure will also increase The cross-sectional area of the piping must increase The mass quantity flowing per second will decrease Potential energy in the form of pressure will decrease

Potential energy in the form of pressure will decrease

What do animals use to change what they eat (biomass) into energy? water photosynthesis oxygen heat from the sun

oxygen

What do the biological, chemical and geological cycles try to attain in the process of cycling? stasis balance constant movement surpluses

stasis

Foundation or centre lines of a sketch should be: Very bold and extended Drawn when first beginning to sketch Heavy, dashed lines Always done to scale

Drawn when first beginning to sketch

The steam produced by an electrode type boiler depends on the: Voltage supplied to the immersion elements Level of water in the basket Number of heating elements energized Number of electrodes energized

Level of water in the basket

This group recommends updates to the learning materials of each class of Power Engineer, and the criteria required to ensure a Power Engineer is properly qualified when a Certificate of Competency is issued. ANSI ACI SOPEEC IPECC ASME

SOPEEC

To which of the following oil burners is the oil supplied under high pressure? Mechanical atomizing burner Air atomizing burner Rotary cup burner Steam atomizing burner

Mechanical atomizing burner

What are Chlorofluorocarbons? They are products of incomplete combustion They are naturally occurring gases They are gases responsible for more photochemical smog than any other pollutant They are man-made refrigerants.

They are man-made refrigerants.

Stack emission detection techniques must meet the standards laid out by this organization. American Society of Mechanical Engineers American Society for Testing and Materials Canadian Standards Association Underwriters Lab (Canada)

American Society for Testing and Materials

Fluidized bed boilers can successfully burn coal with ash contents as high as 30% 55% 60% 70%

70%

Where is most of the world's carbon stored? in the oceans in rocks in animals in plants

in rocks

White cast iron has a high resistance to corrosion and abrasion, which makes it useful for: Underground steam lines Ash handling systems Condensate lines Natural gas supply lines

Ash handling systems

This group of members of jurisdictional bodies meets at least annually. Answering to the ACI, they ensure that all Power Engineer examinations meet the requirements set by the jurisdictional legislative bodies. ANSI ACI SOPEEC IPECC ASME

SOPEEC

Lines used to indicate distance between two points on a sketch are called: Object lines Extension lines Centre lines Dimension lines

Dimension lines

The ability of a material to resist penetration is called: Elasticity Toughness Hardness Ductility

Hardness

The flow of electrons in a uniform direction is called: Voltage drop Electric current flow Potential difference Electromotive flow

Electric current flow

The Haycock boiler was: A watertube design A return tubular design Used around 1720 Of welded construction

Used around 1720

In a low-pressure serpentine watertube boiler, the tubes are attached by either _______ or by using ferrules. Welding Expanding Threading Seamless fittings

Threading

"Transpiration" is the process where: dissolved oxygen is expelled from water water vapour goes through a phase change plants release water animals inhale oxygen

water vapour goes through a phase change

The ratio between the ultimate strength and the allowable stress is called the: Ultimate stress Maximum allowable load Working stress Safety factor

Safety factor

The blowoff connection on a boiler is located at the: Water line in both firetube and watertube boilers Bottom, or base, of the shell in the firetube boiler Top of the mud drum in a watertube boiler Bottom of the steam drum of a watertube boiler

Water line in both firetube and watertube boilers

The Bourdon tube is often shaped in the form of a “C”, having an arc span of about: 180 degrees 200 degrees 90 degrees 270 degrees

270 degrees

The copper tube tubular heating boiler: Are mostly gas fired Generates high pressure steam Has the furnace in the upper section Is highly susceptible to corrosion

Are mostly gas fired

Defects in a weld can also be called: flaws observed inclusions discontinuities indicators

discontinuities

A packaged watertube boiler having two mud drums is the: “O” type “D” type Three drum bent-tube type “A” type

A” type

Alternators must run at constant speed in order to maintain: Current Power output Constant voltage Frequency

Frequency

One disadvantage of using threaded connections to join pipes and fittings is that it: is more costly Weakens the pipe difficult to insulate Requires the services of a pipe fitter

Weakens the pipe

Carbon can find its way into rock via: groundwater the formation of sedimentary rocks decaying plant matter carbon dioxide carrying precipitation

the formation of sedimentary rocks

The boiler blowoff valves are opened and closed in a specific sequence to: Carry out the blowdown accurately Prevent excessive water discharge Maintain the boiler water level Protect the valve closest to the boiler

Protect the valve closest to the boiler

Only certified "Safety PLCs" can be used for Conveyor sequencing Air dryer sequencing Burner management systems Lime mud mixing systems

Burner management systems

Cast iron boiler capacity: Is very large compared to steel boilers Can be increased by simply adding sections Cannot be increased once assembly is completed Can be increased by increasing section size

Can be increased by simply adding sections

A characteristic that made early boilers very inefficient was: small heating surface An excess of flat surfaces The internal furnace Lack of good quality fuels

small heating surface

What is the first step in eliminating hazards in an energy plant? Review past accident/incident reports Identify the hazards survey the employees for ideas on eliminating hazards Set up a housekeeping plan to keep the areas clean and free of hazards

Identify the hazards

Definitions for terms such as “shift engineer,” “chief engineer” and “assistant engineer” may be found in: The Canadian Labour Code ASME Code Section VIII CSA B-51 The Power Engineers’ Regulations of a particular jurisdiction

The Power Engineers’ Regulations of a particular jurisdiction

The area under a velocity vs. time graph equals: Distance Speed Acceleration Displacement

Displacement

This type of non-fusion welding is often used in the construction of refrigeration systems. silver brazing soldering stick welding hot gluing

silver brazing

The most vital element to ensure effective heat transfer in a fin-type heat exchanger coil The fin must be crimped The fins must be made of highly conductive material A good bond must exist between the tube and fin Narrow fin spacing is necessary Wide fin spacing is necessary

A good bond must exist between the tube and fin

If you can reduce the hazardous nature of a liquid waste you can: eliminate all risks of the liquid. reclassify the liquid as non-hazardous. eliminate the need for proper containment. reduce or limit the effects of a containment failure.

reduce or limit the effects of a containment failure.

A reducing agent or fuel could be: Carbon monoxide A heavy metal oxide Hydrogen peroxide Concentrated Sulphuric acid

Carbon monoxide

Of these materials, the one most commonly used for sewage piping is stainless steel cast steel cast iron aluminum

cast iron

When isolating an electric motor driven pump, you should first: Close the pump inlet valve Open the motor breaker Ensure the pump is drained Close the pump discharge valve

Open the motor breaker

What tool is used to find hazards in a plant? A Hazard Assessment and Identification process Employee surveys Analyzing accident and incident investigation forms Hiring a contractor to clean up the plant site, and review the work

A Hazard Assessment and Identification process

Which of the following is NOT a scalar quantity? Velocity Length Volume Time

Velocity

To indicate materials of construction in a sketch, normal practice is to use: Colour coding Shading Cross-hatching Labels

Cross-hatching

Cascade control utilizes: One controller, two transmitters and two valves Two controllers, one transmitter and two valves. Two controllers, two transmitters and two valves. Two controllers, two transmitters and one valve.

Two controllers, two transmitters and one valve.

With regards to solid pollutants, what is a surface impoundment? It is a warehouse where solid pollutants are stored It is a pond or lagoon where solid pollutants are stored It is an area to store dry solid pollutants It is part of the conveying system meant to handle solid pollutants

It is a pond or lagoon where solid pollutants are stored

The commutator of a DC machine is usually made of copper bars separated by: Mica Steel plates Fibreglass Carbon

Mica

Fire pump testing should be completed: annually Monthly Weekly Annually, Monthly and weekly

annually

To lessen long term environmental impact after plant closure, part of the approval process for a new industrial facility is the requirement for: a reclamation plan. a spill containment "farm". hazardous waste disposal training an up-to-date operating procedures manual.

a reclamation plan.

On a boiler blowoff system, a valve that requires at least five 360° turns of the operating mechanism to change from fully open to fully closed is known as: a quick opening valve a non-return valve a slow opening valve an isolating valve

a slow opening valve

The Bourdon tube can be used with a bulb and capillary tube to measure: Viscosity Flow Humidity Temperature

Temperature

What effect does preheating an area to be welded have on the weld? it makes the weld brittle it makes the weld more quenchable it makes the welds more ductile it makes the welds tough

it makes the welds more ductile

When reading the dials of a kilowatt hour meter, read: Them in the sequence shown by the letters under each Them from left to right The ones that rotate clockwise first Them from right to left

Them from left to right

One of the typical details shown in the Process Flow Diagram (PFD) includes: Detailed configuration and exact location of equipment Detailed pipe sizes Main piping and direction of flow All valve locations and orientation

Main piping and direction of flow

During submerged arc welding, _________ prevents the weld from oxidizing and cooling too fast. Amperage Flux Rod composition Rod rate of feed

Flux

Which gasket has an oval cross-section? Flat ring Full face Cut asbestos Ring joint

Ring joint

Wrought iron: Is stronger than steel Is corrosion resistant Is a non-ferrous metal Contains a high percentage of carbon

Is corrosion resistant

A typical application of forged steel in a power plant is: welded pipe fittings superheated steam lines drain lines ash handling systems

welded pipe fittings

In the process of making iron, limestone is added to: Pig iron moulds The iron ore in the moulds The blast furnace in order to form slag Make the pig iron more malleable

The blast furnace in order to form slag

The output of an immersion type electric boiler is controlled by __________ one or more elements as required. turning the power on or off immersing short-circuiting controlling the basket level of

turning the power on or off

Welding together pipes that are 2 inch nominal size or smaller is usually done using: The oxy-acetylene method The socket weld method The butt weld method automatic welding machines

The socket weld method

The two types of Penetrant Testing (PT) are fluorescent testing and: Developer testing Colour Contrast testing Infrared testing Viscous Penetrant testing

Colour Contrast testing

Transformers are often cooled by: immersing the core in a refrigerant bath forced cooling with fans immersing the core in cooling water using windings with less insulation

forced cooling with fans

In a Plant Line Trace sketch: All valves are shown All process flows are shown pipe sizes are shown only major features are shown

only major features are shown

A piping and instrumentation diagram (P&ID) will show major flow lines: with all information for those lines with basic information for those lines with most instrumentation only with line size and major valves

with all information for those lines

Class 1 water treatment, as per ASME section VI, is suitable for: Cast Iron boilers Firetube Heating Boilers Tubular heating boilers Watertube Heating Boilers

Cast Iron boilers

____________ heat exchangers are not usually used with steam, because condensate does not easily drain from them. U-tube Straight Tube Plate type Finned Tube

Plate type

The main components of a DC machine are the non-moving assembly, called the _____, and the rotor, which is also called an armature. Wiring Stator Rheostat Generator

Stator

Boiler combustion is regulated by: Varying the speed of an ID fan Controlling or regulating the fuel flow Varying the speed of an FD fan Controlling the air and fuel flow

Controlling the air and fuel flow

A refractory burner disadvantage is: High cost due to complexity Too much fuel preheat Low radiant heat Low combustion efficiency

High cost due to complexity

Generally speaking, what are two main general methods for reducing NOx emissions in a plant? Remove them from the flue gas or disperse nitrogen absorbers with them Use low nitrogen fuel or reduce stack temperatures Using low NOx burners or reducing flame temperatures Prevent or minimize their formation or remove them after they have been generated

Prevent or minimize their formation or remove them after they have been generated

In order to ensure safe and continuous operation of a pressure reducing valve, the valve station should have _________________. A safety valve on the high-pressure side A bypass line, plus a safety valve and pressure gauge on the low-pressure side Thermometers on the inlet and outlet piping A strainer immediately downstream of the valve

A bypass line, plus a safety valve and pressure gauge on the low-pressure side

An advantage of expansion bends is that they are __________ than expansion joints. stronger easier to service heavier more compact

stronger

Section lines of a drawing that show the material of construction are usually drawn at an angle of: 90° 30° 45° 60°

45°

Inlet damper control on a fan: Requires more power to drive the fan when the vanes are closed. Requires less power to drive the fan at reduced loads. Is only used on forced draft fans. Is far less complicated than outlet damper control.

Requires less power to drive the fan at reduced loads.

An electrical actuator used to position dampers and control valves is called: A controller A relay A transformer A modulating motor

A modulating motor

How can the mechanical properties of a metal be restored after welding? quench the weld carry out a post-heat stress treatment and quench after the weld is completed, allow the metal to cool quickly and then raise the temperature again carry out a post weld heat treatment

carry out a post-heat stress treatment and quench

The material designation marking on a valve __________________. Indicates which manufacturing branch it originates from Indicates the material that the valve is made from Gives the maximum temperature for the valve material is associated with the Canadian Registration Number

Indicates the material that the valve is made from

A copper alloy that contains tin, and sometimes zinc, is: Brass Bronze White metal Babbit

Bronze

The Hartford Loop prevents the water in the boiler from: Exceeding the maximum temperature Exceeding the highest safe level Dropping below a safe level Flowing out through the steam main

Flowing out through the steam main

A safe work permit for cold work is intended for work: only in freezers and cold spaces Only for outside work in winter months For work that will usually not cause a fire For work that may cause a fire, but unlikely

For work that will usually not cause a fire

Materials used for the manufacture of pipes for power plants MUST be: Manufactured only in Canada Seamless regardless of the operating conditions Suitable for the system operating conditions Welded and stress relieved

Suitable for the system operating conditions

Increasing the spring tension in a pressure reducing valve will ___________________. Reduce or minimize the cycling or "hunting” of the valve Decrease the regulated pressure downstream of the valve Allow for maintenance to be completed downstream Increase the regulated pressure downstream of the valve

The direction of the _____ on the conductor may be determined using the Left Hand Rule for Motors. force polarity resistance voltage

polarity

An analog control loop output must be put through a _____ before the computer can react to the signal. Digital converter Signal inverter ROM detector Multiplexer

Digital converter

What kind of problems can be detected using the visual method while a weld is taking place? the width of the root opening the formation of cracks the welding machine current settings the concavity of the weld

the welding machine current settings

Gas burners for heating boilers can be divided into two general classes: Mixing and non-mixing Refractory and ribbon-type In-shot and up-shot Pre and after mix

Pre and after mix

The continuous blowdown pipe on a boiler is used to: Blow down the boiler if the pressure exceeds the maximum allowable working pressure Remove suspended matter from the boiler Blow chemicals into the steam drum Remove concentrated dissolved solids from the boiler

Remove concentrated dissolved solids from the boiler

The two types of Penetrant Testing (PT) are fluorescent testing and: Developer testing Colour Contrast testing Infrared testing Viscous Penetrant testing

Colour Contrast testing

Aqueous film forming foam agents extinguish a fire by: Breaking the chain reaction Cooling and smothering Sealing vapours, and cooling Sealing vapours, cooling, and removing oxygen Combining oxygen with the burning material

Cooling and smothering

A compound wound DC generator has a combination of shunt and _____ characteristics, depending on the predominance of each type of winding. Parallel Separately-excited Induction Series

Series

Water that leaves a blowoff tank and enters a sewer must not exceed _______ °C: 45 50 75 65

Clamp-on ammeter readings may be inaccurate if: Jaws are dirty or misaligned Circuit voltage is too high Circuit resistance is too low Conductor insulation is too thick

Jaws are dirty or misaligned

The transfer of heat involving the movement of a fluid is defined as: Conduction Convection Radiation Flux Thermo-circulation

Convection

Boilers are designed with more combustion gas passes: Because boiler tubes cannot be manufactured in great lengths To allow more time for heat transfer So soot falls out in the last pass, leaving the first pass clear To create less thermal stress on the boiler metal

To allow more time for heat transfer

Orifice plates, venturi tubes and nozzles belong to the group called: Flow meters Pressure meters Head meters Analog meters

Head meters

A typical extra low voltage device would be a: Toaster Fluorescent light Door bell Step-down transformer

Door bell

In a vertical sectional boiler, the sections are placed: One above the other Side by side On the furnace Above the draft hood

Side by side

________ provide easy assembly and dismantling of screwed piping connections. Couplings Flanges Unions Bolts

Unions

A high-pressure steam boiler is one in which steam is generated at a pressure greater than: 100 kPa 101. 3 kPa 51. 2 kPa 76. 4 kPa

100 kPa

In piping systems, the three main types of flange gaskets are the full face, the ring joint, and the: Corrugated Bellows type Van Stone type Flat ring type Segmental ring type

Flat ring type

For a pneumatic control system, it is imperative that The maximum transmitter output signal pressure be maintained The air supply is kept clean and dry The control systems have built-in redundancy The control devices are fitted with noise attenuators

The air supply is kept clean and dry

A process flow diagram (PFD) shows: All the equipment in a plant Major piping to do with a process All instrumentation The physical layout of equipment

Major piping to do with a process

To transfer the power to or from the rotor of alternators, ____________ are used. Field poles Commutators Slip rings Hard-wired connections

Slip rings

Why were PLCs first developed? To allow processes to be easily and quickly re-configured To allow the use of analog input and output signals To remove the need for feedback loops To eliminate the need for control programming language

To allow processes to be easily and quickly re-configured

This group meets at least once a year on situations which they feel are important and relevant to Power Engineers and the fulfillment of their duties and responsibilities. ANSI ACI SOPEEC IPECC ASME

ACI

The "coefficient of friction" is defined as the: Ratio of the force required to move a body to the normal reaction force. Force parallel to the surface required to start an object moving. Reaction perpendicular to the surface. Force parallel to the surface required to keep an object moving at a constant linear velocity.

Ratio of the force required to move a body to the normal reaction force.

Tie breakers are used to: Allow the interconnection of two power sources without placing them in parallel Break the circuit in case of overload Protect the transformer from the power source Protect the plant service bus from the power source

Allow the interconnection of two power sources without placing them in parallel

A relief valve is placed on the discharge of a fuel oil pump: Because the pump is a dynamic type So burner design pressure is not exceeded To maintain a stable flame at high loads To maintain a stable flame at low loads

So burner design pressure is not exceeded

Burning metals may be extinguished using: Dry chemical extinguishers Carbon dioxide extinguishers AFFF extinguishers Dry powder extinguishers

Dry powder extinguishers

Squirrels are herbivores and are also part of the food web. When a squirrel dies, what happens next? Decomposers break it down into its basic elements energy is released there is a net gain in matter in the soil carbon dioxide is released

Decomposers break it down into its basic elements

The voltage induced in the secondary windings of the transformer, is _____ the turns ratio of the transformer. proportional to Reversed to Opposed by Inversely proportional to

proportional to

The maximum operating temperature for a carbon steel valve is _________ °C: 280 425 650 1000

425

The water flow through a modular cast iron boiler system: Continuous through all modules Connected in series Intermittent, occurring only while the unit is firing Done without the use of headers or manifolds

Continuous through all modules

The purpose of the non-return valve on a boiler is to_____________________. Prevent water from entering the steam header Prevent the back flow of steam into the boiler Prevent the safety valve from popping Regulate the flow of steam from the boiler

Prevent the back flow of steam into the boiler

Daily fire suppression system checks should include: Visual inspection of fire hoses for readiness Fire pump run test Hydrostatic testing of sprinkler lines Water supply valves to all systems are open and locked open if necessary

Visual inspection of fire hoses for readiness

with all information for those lines

One Newton is equal to: 1 kg/s2 1 kgm/s 1 kgm/s2 1 kgm2/s

1 kgm/s2

What term is connected to the movement of material and substances through the environment? biogeochemical hydrogeological homeostasis regeneration

biogeochemical

With reference to scalars and vectors, a space diagram: Shows the relationship of time to the vector. Illustrates a system of vectors. Shows the relationship of the scalar to the vector. Illustrates a system of scalars.

Illustrates a system of vectors.

) Proper draft is important to the plant operator because it: Produces efficient combustion Keeps the furnace from overheating Reduces the quantity of ash produced Prevents flue gas from leaking out of the boiler

Produces efficient combustion

A common material used for valve packing is ____________________. Fiberglass Mica Nylon Teflon

Teflon

A boiler blowoff system is equipped with slow and fast opening valves. The quick opening valve is placed: Closest to the boiler and opened first Furthest from the boiler and opened first Closest to the boiler and opened last Furthest from the boiler and opened last

Closest to the boiler and opened first

If you discover an injured worker in your facility, you should ____________ on your two-way radio. Call out "HELP” Press the "Man Down” button Keep radio silence Call emergency services

Press the "Man Down” button

Carbon that is not combined with hydrogen is referred to as: Mono-carbon Separated carbon Free carbon Fixed carbon

Fixed carbon

Natural draft is produced in a boiler furnace when: Hot flue gases contract so that each cubic meter has more mass Gases in the stack have less mass than an equal column of outside air Gases in the stack have more mass than an equal column of outside air Hot flue gases condense

Gases in the stack have less mass than an equal column of outside air

In an atmospheric fluidized bed boiler, the combustion air pressure is typically 2.5 kPa at the FD fan, 1.6 kPa of water at the base of the active bed and _____ at the top of the combustion mass: Boiler pressure Negative 16 cm of water Negative pressure Atmospheric pressure

Atmospheric pressure

Combustion air for the burners is preheated in the _____ by hot flue gases. Economizer Air heater Superheater Windbox

Air heater

Low fuel pressure in an constant capacity mechanical atomizing oil burner produces: Low excess air requirements A short blue flame Gummy deposits in the burner nozzle Poor atomization

Poor atomization

Places where ground water leaves the system to become surface water are called: Discharge points Runoff areas Recharge points Springs

Discharge points

A chromatograph uses electronic devices which: Utilize electrical current as a measurement base decrease in resistance with a rise in temperature, and vice versa Increase in resistance as temperature rises Work in conjunction with a thermocouple

decrease in resistance with a rise in temperature, and vice versa

An AC motor which will drop out of synchronism and simply trip when overloaded is the: Slip-ring induction motor Induction motor Wound rotor induction motor Synchronous motor

Synchronous motor

What are the main component metals of "white metal"? copper and iron lead and tin aluminum and lead bronze and tin

lead and tin

Pressure controllers can be divided into two classes: High and low temperature High and low pressure High and low flow High and low voltage

High and low pressure

Watt meters measure: Apparent power Power factor Resistance to current flow Active power

Active power

_______ fittings are used to provide proper drainage of water. Removable Orifice Eccentric Tapered

Eccentric

Rectification is the process of converting AC to _____ in a DC generator. Heat Direct current Voltage Resistance

Direct current

Boiler water having the highest dissolved solids concentration is found: At the bottom of the mud drum At the bottom of the steam drum At the top of the steam drum Just below the waterline of the steam drum

Just below the waterline of the steam drum

What are the three reservoirs of the carbon cycle? trees, animals, oceans rocks, oceans, atmosphere rocks, plants, atmosphere animals, oceans, atmosphere

rocks, oceans, atmosphere

Beading the tube ends in a firetube boiler: stops tube leakage eliminates the need to expand the tubes into the tubesheet helps prevent overheating of the tube ends must be followed by seal welding

helps prevent overheating of the tube ends

The windbox of a boiler is: Where the fuel and air are mixed for combustion The collector of the exhaust gases before they go into the uptake The chamber through which combustion air is introduced to the boiler furnace Always maintained at a negative pressure

The chamber through which combustion air is introduced to the boiler furnace

In a typical bubbling fluidized bed boiler, to what depth is the combustion bed maintained? 1.5 metres 1 metre 2 metres 2.5 metres

1 metre

The output voltage of a shunt DC generator is varied by adjusting the: Field rheostat EMF Output current Pole piece air gaps

Field rheostat

The three markings mandatory on valves to be used in pressure piping include manufacturer's name, material designation and _______________. weight designation CRN number valve type service designation

service designation

When conducting a weld inspection, "indications" in the weld: can always be found during a visual inspection may be acceptable depending on the circumstances. must cause a weld to be rejected are found according to the methods laid out in ASME Section VIII

may be acceptable depending on the circumstances.

Sound levels produced by a plant are normally not a problem as long as: The sound levels meet guidelines The indoor sound levels of nearby residents aren't negatively affected Proper hearing protection is worn the sound levels are continuously monitored

The indoor sound levels of nearby residents aren't negatively affected

A thermo hydraulic feed water regulator uses _____ as operating media. Oil and nitrogen CO2 and water Water and steam Air and water

Water and steam

____________ heat exchangers are not usually used with steam, because condensate does not easily drain from them. U-tube Straight Tube Plate type Finned Tube

Finned Tube

Superheated steam: Is produced in the saturated steam drum Temperature is higher than the saturation temperature Is almost dry and contains very little moisture Cannot be used for soot blowers Can only exist at pressures above 103 kPag

Temperature is higher than the saturation temperature

For three-phase power, each conductor is _____ electrical degrees out of phase with the others. 30 90 120 180

120