Correl OTs

Question 1

It is a faucet opened or closed by the fall or rise of a ball floating on the surface of the water

Answer 1

Ball cock

Question 2

A pump in which the pressure is important to the fluids by centrifugal force produced by a rotating impellerA pump in which the pressure is imported to the fluids by centrifugal force produced by a rotating impeller

Answer 2

Centrifugal pump

Question 3

The portion of a rainfall or other precipitation in which runs off over the surface to the groundThe portion of a rainfall or other precipitation in which runs off over the surface of the ground

Answer 3

Surface water

Question 4

A white water insoluble through plastic resin especially used in the manufacture of pipe and pipe fittingA white water insoluble thermoplastic resin especially used in the manufacture of pipe and pipe fitting

Answer 4

PVC

Question 5

An automatic device used for converting high fluctuating inlet water pressure to a lower constant pressureAn automatic device used for converting high fluctuating inlet water pressure to a lower constant pressure

Answer 5

Pressure reducing valve

Question 6

Water supply pipe that extends vertically one or more stories to convey water to branches for fixtures

Answer 6

Riser

Question 7

The art and technique of installing in buildings the pipes fixtures and other apparatuses for bringing the water supply liquids substances and or ingredients and removing them and such water liquid and other carried wastes affecting Health and sanitation and hazardous to life and property

Answer 7

Plumbing

Question 8

A test and pressure tightness and in plumbing line using water under pressure

Answer 8

Pressure test

Question 9

Valve use for flushing a fixture by water directly from the water supply pipes or in connection with a special flushed tank

Answer 9

Flushometer valve

Question 10

In water service pipe a control valve for the water supply of a building usually placed between the sidewalk and curb used to shut off the water supply in case of emergency

Answer 10

Curb cock

Question 11

The following are popular and widely excepted material for the construction of septic tank except:

a. reinforced concrete
b. thin plastic and metal
c. plastered concrete hollow blocks d. asbestos prefab

Answer 11

d. asbestos prefab

Question 12

A pipe fitting to change One Direction or coarse the flow of sewage for drainage line is

Answer 12

45 elbow

Question 13

The following are the list of purposes of providing a venting system which in the list is not a purposeThe following are the list of purposes of providing a venting system which in the list is NOT a purpose

Answer 13

To convey the foul smell present in the pipes

Question 14

General conditions for a good waste pipes installation are given below except

Answer 14

5% slope of pipe line

Question 15

What is the general term used for any vertical line of soil waste or vent piping

Answer 15

Stack

Question 16

At least one stack of a plumbing system must extend full-size through the roof for the following purposes excluding

Answer 16

To maintain economical use of material

Question 17

Installing soil pipes fittings and connections the national plumbing code of the Philippines prohibits the use of the following except

Answer 17

Sanitary or long sweep elbow

Question 18

What is considered a portion of the horizontal drainage system which starts from the outer face of the building and terminate at the main sewer in the street or septic tank

Answer 18

House sewer

Question 19

What is the result of the minus pressure in the drainage system

Answer 19

siphonage

Question 20

What is a device used in drainage system to prevent reversal flow of liquid

Answer 20

Backflow valve

Question 21

There are various forms of water sealed traps which could be used to serve plumbing fixtures. Listed below are classified as per visible traps excluding

Answer 21

Bag Trap

Question 22

What do you call a minor problem that happens only on floor drain which are not regularly used to admit water exposed to extreme temperature

Answer 22

Trap seal loss

Question 23

It is a recent development and drainage installation which is suitable for tall building. It almost completely illuminates the vent stack and other forms of ventilation with the same effectiveness

Answer 23

Two line system installation

Question 24

Of the given sewage disposal system, which is no longer permitted by the authorities?

Answer 24

Public sewer line

Question 25

What is the minimum waste pipe diameter size for a sink waste?

Answer 25

1 1/2"

Question 26

Which of the following is not a classification of a storm drain?

Answer 26

Rear storm drain

Question 27

What is a receptacle decide to catch the surface water coming from cemented courts driveways and yards

Answer 27

Area drain

Question 28

It is the direct effect of the minus and plus pressure inside the drainage system as long as the ventilation of the traps continues to be inadequate

Answer 28

Backflow

Question 29

Which of the following is the semi liquid substance formed through the sedimentation of the suspended solids during the retention inside the septic tank

Answer 29

Scum

Question 30

It is classified as water seals device intended for fixtures that are sent on the floor like bathtub and footbath her other similar fixtures

Answer 30

Drum Trap

Question 31

Mho is used in electrical system calculation is defined as ___.

Answer 31

The reciprocal of ohm

Question 32

The unit of mechanical power is horsepower. What is electrical power?

Answer 32

Watt

Question 33

A type of Raceway specifically constructed for the purpose of pulling in or the withdrawing of wires or cables after the conduit is in place

Answer 33

Rigid metal conduit (RMC)

Question 34

And lighting and illumination calculation, what is the unit for lux?

Answer 34

One lumen per square meter

Question 35

The following are elements of centralized air-conditioning system except

Answer 35

Control equipment

Question 36

A transformer is

Answer 36

A mechanical device used to step up or down voltage in AC

Question 37

The following are ways in which heat may be transferred except

Answer 37

Polarisation

Question 38

Acoustics is a science that concerns with

Answer 38

All of the above

Question 39

Inverse square law states that sound intensity ___ the square of the distance from the source

Answer 39

Varies inversely with

Question 40

Creep is the phenomenon where by sound travel in a ____

Answer 40

Curve surface

Question 41

Sound transmission loss is affected by the following

Answer 41

All of the above

Question 42

This acoustical metal is manufactured from rock wool, Glass fiber, woodfibers, hair felt, etc. generally installed in wood or metal framing system

Answer 42

Acoustical tile

Question 43

Acoustical, and fiber composite board is manufactured using BAP. What does BAP stand for?

Answer 43

Bonded acoustical panel

Question 44

Or unit for assembly units or sections and associated fittings forming a rigid structural system used to support cables.

Answer 44

Busway

Question 45

It affects the resistance of a conductor

Answer 45

All of the above

Question 46

It is also known as electrical panel or load center

Answer 46

Panelboard

Question 47

A cylindrical container or conductor, the wall thickness is sufficient to receive a standard pipe

Answer 47

pipe

Question 48

It is analogous to pressure in water flow

Answer 48

Voltage

Question 49

A branch of acoustics that involves the control of noise pollution environmental noise which include motor vehicles aircraft noise etc.

Answer 49

Environmental acoustics

Question 50

Pyramid is a type of commercial produces acoustical tile, which of the following is not a characteristic of these materials?

Answer 50

Ideal for audio room application

Question 51

Alternating current is characterized as having

Answer 51

All of the above

Question 52

Any of the variety of soft floor finishes made in synthetic materials such as nylon or natural material such as wool. It is either glued directly to the floor or installed over an underlayment of hair felt or foam rubber. What is it?

Answer 52

Carpet

Question 53

When sound impinges on the surface such as walls, floor, ceiling, etc. it is referred to as ___.

Answer 53

Structureborne sound

Question 54

This material is so named in honor of a German physicist, consist of a hollow material with the small hole on one side. This is used to detect individual frequency of complex acoustic wave configuration

Answer 54

Hermholtz resonator

Question 55

What is the minimum distance between the handrails of escalators?

Answer 55

600mm

Question 56

The rustling of leave in breeze is said to be within the ___.

Answer 56

threshold hearing

Question 57

The over all covering of underground feeder in branch circuit cables shall be a. Fungus Resistant b. Corrosion Resistant c. Both a and b d. None of these

Answer 57

c. Both a and b

Question 58

These consist of loose fibers or granules and it's made from cellulose, fiberglass, Rock wool, cotton or other materials. These materials come in bags and are usually blown into cavities using special equipment. What are these?

Answer 58

Loose fill insulations

Question 59

A circuit type where components are electrically connected end to end

Answer 59

Series parallel circuit

Question 60

Unit of capacitance is

Answer 60

Coulomb

Question 61

Factory assembly of two or more insulated conductors having an outer sheath of moisture resistant, flame retardant, non-metallic material.

Answer 61

Non-metallic sheath cable (type NMC)

Question 62

The basic elements of an electric circuit or the following except

Answer 62

Electrical load

Question 63

Cables are contractors that are a. Larger than wires b. Standard c. Both and b d. None of these

Answer 63

c. Both and b

Question 64

Copper as a conductor has the property of being a. Ductile b. Malleable c. A only d. A and b

Answer 64

d. A and b

Question 65

The velocity of sound is affected by

Answer 65

Kind of medium

Question 66

Examples of conductors on insulator wiring is/are a. Concealed knob and tube b. Open wiring on the insulators c. Both a and b d. None of these

Answer 66

c. Both a and b

Question 67

Which the following metallic is considered as the best conductor of electricity

Answer 67

Copper

Question 68

What aspects of environment or surrounding is considered in air-conditioning system for human comfort? a. Temperature of the surrounded air b. Motion of air c. Both a and b d. None of these

Answer 68

c. Both a and b

Question 69

What is the refrigerant name of R-12

Answer 69

Dichlorodifluoromethane

Question 70

Transondent facing sorry that was transparent facings with holes. Which facing will reflect more sound?

Answer 70

20% opening

Question 71

A type of service flush raceway designed to receive conductors and receptacles assembled in the field or in the factory

Answer 71

Multi outlet assembly

Question 72

Which of the following sources of sun produces the highest sound pressure level (SPL)?

Answer 72

Accelerating motorcycle 50 feet away

Question 73

A type of switch used for transferring one or more load conductor connections from one power source to another

Answer 73

Transfer switch

Question 74

What are the property of concrete as an acoustical material are important

Answer 74

Aerated concrete is fairly absorptive

Question 75

These are substances that carry or allowed to flow of electric current

Answer 75

Conductor

Question 76

One horsepower =

Answer 76

746 watts

Question 77

Electric elevator machine room is located at the

Answer 77

Basement

Question 78

It is a three section built up welded steel trussed framework which supports the moving stairway component

Answer 78

Truss

Question 79

It is a mechanical device for transporting persons between two levels

Answer 79

Collator

Question 80

The ratio of the maximum demand of a system, to the total connected of a system or the part of a system under consideration is called

Answer 80

Demand factor

Question 81

Consists of platform or car traveling and vertical guides in a shaft or hoist way, with related hoisting and lowering mechanism

Answer 81

Elevator

Question 82

A device for heating water are generating steam above atmospheric pressure

Answer 82

Boiler

Question 83

A machine that decreases the volume and increases the pressure of a quantity of air by mechanical means

Answer 83

Compressor

Question 84

A device that contains control of the indoor environment is desirable temperature, humidity, air circulation, and purity for the occupants of the space or four industrial materials that are handled or stored there.

Answer 84

Air conditioning

Question 85

A system for transporting materials from one site to another, especially in a factory

Answer 85

Conveyor

Question 86

Machine that converts mechanical energy into electrical energy called

Answer 86

Generator

Question 87

Device for reducing the temperature of a liquid, usually water, by bringing it into contact with an airstreams where a small portion of a liquid is evaporator and the major portion is cooled.

Answer 87

Cooling tower

Question 88

Machine often provides the most convenient economical means of transporting relatively small articles between levels

Answer 88

Dumb waiters

Question 89

Give stability to governor ropes

Answer 89

Tension sheave

Question 90

Device that converts electrical energy into mechanical energy, by electromagnetic means

Answer 90

Alternator

Question 91

These are vertical tracks that guide the car and counterweight

Answer 91

Guide rails

Question 92

These are rectangular blocks of cast-iron stacked in a frame, which is supported at the opposite ends of the cable to the car is fastened

Answer 92

Counterweight

Question 93

It is a vertical passageway for the car in counterweight

Answer 93

Shaft

Question 94

It is a device to absorb the impact of car on counter with at the lower limit of travel

Answer 94

Spring buffer

Question 95

A device used for moistening the air at the desired degree

Answer 95

Humidifer

Question 96

And air-conditioning system in which the air is treated by equipment at one or more central locations outside the spaces served and conveyed to and from these by means of fans and pumps through duct and pipes

Answer 96

Centralized air-conditioning

Question 97

Type of elevator that is raised or lowered quite simple by means of movable rod or plunger

Answer 97

Freight elevator

Question 98

It is a device to control the temperature

Answer 98

Thermostat

Question 99

The following statements are true with regards to sound except

Answer 99

The sound is an aural sensation

Question 100

Vertical pipe which conveys only waste water or liquid waste free or fecal matter

Answer 100

Waste stack