Correl OT 3

Question 1

This kind of pump attached to the end of the deep well pipe enclosed in the casing where the pump is capable of functioning submerged

Answer 1

Submersible pump

Question 2

The tank using air pressure from a suction tank to distribute water from tall buildings which cannot be reached by a normal pressure

Answer 2

Pneumatic tank

Question 3

The kind of G.I. fitting that has one and external threats, well the other and has internal threads.

Answer 3

Two-way fitting

Question 4

The white tape used around the thread before tightening the fittings with a G.I. pipe is threaded to ensure no leakage

Answer 4

Teflon

Question 5

It describes the reflection of sound along the curb service from the stores near the surface. Although this sounds can be heard at points along the surface, it is inaudible way from the surface.

Answer 5

Creep

Question 6

What method is used to specify the maximum allowable intensity of background sounds?

Answer 6

Inverse square law

Question 7

What is one variable affecting reverberation time?

Answer 7

Room volume

Question 8

In an office, a copy machine is found to produce 65 dB. If a computer printer is added to the room and it produces sound intensity of 69dB, what will be the resulting sound level?

Answer 8

72dB

Question 9

A system of sprinklers with its pipe constantly filling both mains and distribution pipes

Answer 9

Wet pipe system

Question 10

An inlet placed outside the building close to a ground-level, having two openings so that the fire engines can’t stop water to the dry standpipe and sprinkler system of the building

Answer 10

Siamese twin

Question 11

A fitting or device so constructed as to prevent the passage of air, gas and materially affecting the flow of sewage or waste water through it

Answer 11

Trap

Question 12

If it a receptacle at a low point at which the liquid waste are drained

Answer 12

Low point pit

Question 13

A geared traction elevator would be most appropriate for which of the following applications?
I. A five- story medical office building
II. A 16 story office building
III. Before story department store
IV. An eight story apartment

Answer 13

I, II, III, IV

Question 14

It is a part of a piping system other than the main, riser or stack

Answer 14

Branch

Question 15

It is the most popular and generally specify pipe for drainage installation

Answer 15

Cast-iron pipe

Question 16

It is the device designed to prevent backflow of gases into the fixture

Answer 16

Trap

Question 17

In the plumbing system, it refers to the resistance producers by the flowing of water inside the pipe.

Answer 17

Backflow

Question 18

A valve used mainly to completely close or completely open the line but not necessarily to control the flow of water

Answer 18

Gate valve

Question 19

One of the oldest plumbing materials used by Egyptians, Greeks and Romans

Answer 19

lead pipe

Question 20

A valve used on pipe lines to prevent backflow of water

Answer 20

Check valve

Question 21

That portion of the plumbing system that receives discharges of all soil and waste stacks

Answer 21

House drain

Question 22

Part of the building system which contains the atmospheric pressure inside the pipe

Answer 22

Vent

Question 23

It is the available commercial link for rigid type pipes

Answer 23

6 m

Question 24

A vertical supply which extends upward from one floor to the next is called

Answer 24

Riser

Question 25

It is a receptacle or vault used to collect discharge from the house sewer

Answer 25

Septic tank

Question 26

This refers to the backs of water discharge for plumbing fixtures in terms of fixture units

Answer 26

Maximum demand

Question 27

It is a pipe which receives discharge of any picture except water closets and conveys it to the soil pipe

Answer 27

Waste pipe

Question 28

General term for any vertical line of soil, waste and vent pipe

Answer 28

Stack

Question 29

A pipe installed horizontally or vertically which receives the discharge of water closets

Answer 29

went vent

Question 30

That portion of the event type through which liquid waste flow

Answer 30

Wet vent

Question 31

A vent used where two or more fixture traps are installed on the horizontal or waste branch

Answer 31

Circuit vent

Question 32

How many fixture unit values does one bathroom group has

Answer 32

Six

Question 33

What is the fixture unit value for water closet

Answer 33

Three

Question 34

At seal loss which is caused by a suspension of foreign object a string extended over the outlet

Answer 34

Capillary action

Question 35

A trap used for fixture suspended from waltz not receiving a large amount of water discharge

Answer 35

P-trap

Question 36

A pipe fitting which is used to join two pipes

Answer 36

Coupling

Question 37

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 the septic tank

Answer 37

House sewer

Question 38

Also known as dual or common vent

Answer 38

Unit vent

Question 39

Based on the plumbing code, no vent shall be less than 38 mm except for 32 mm _____

Answer 39

Soil pipe

Question 40

It connects roof terminals to the storm drain

Answer 40

roof leader

Question 41

The pipe which is considered as the most expensive all types of pipe

Answer 41

Brass

Question 42

It serves as a clean out and then access for inspections and repairs in the storm sewer

Answer 42

Manhole

Question 43

A type of house drain that receives discharges of sanitary waste as well as stormwater

Answer 43

combined drain

Question 44

A device designed to convey waste from garage, wash rack, grease pit and repair floors in to the house drain

Answer 44

Garage catch basin

Question 45

An acoustical analogy to the regular or specular reflection of light where the angle of incidence of an impinging soundwave equals the action of direction

Answer 45

ray diagram

Question 46

Distribute sounds the way larger or more distant audience

Answer 46

Sound reinforcing system

Question 47

It is the combination of microphones, signal processors, amplifiers and loudspeakers that makes live or pre-recorded sounds louder

Answer 47

Sound reinforcing system

Question 48

Boosts a low-voltage level signal and provide electrical power to drive a loudspeaker

Answer 48

Power amplifiers

Question 49

This system provides maximum realism as the listener will hear amplified sound from the direction of the natural sound

Answer 49

Central loudspeaker system

Question 50

It is the return of a sound wave from a surface

Answer 50

Reflection

Question 51

It is the scattering or random distribution of a sound wave from the surface

Answer 51

Diffusion

Question 52

It is the bell ding or flowing of a soundwave around an object

Answer 52

Defraction

Question 53

Resonate at certain audible frequencies this is called the _effect

Answer 53

Larsen effect

Question 54

Hey sound with a lower frequency wave generate a _ pitch

Answer 54

Higher

Question 55

Refers to sound that is absorbed, and not transmitted

Answer 55

Total sound absorption

Question 56

The persistence of sound in a particular space after the original sound is produced

Answer 56

Reverberation

Question 57

Tubing that contains individual insulated wires

Answer 57

Conduit

Question 58

Wire that carry current from the appliance back to the source

Answer 58

Neutral wire

Question 59

A flexible metal sheath with individual wires inside

Answer 59

Armored cable

Question 60

Electricity flow through the circuit and back to its source rapidly

Answer 60

Short circuit

Question 61

Electrical conductors which are 89 m² or smaller in size

Answer 61

Wires

Question 62

These are used the ground all metal boxes and appliances

Answer 62

Green wire

Question 63

Box with a blank cover where conductors meet join

Answer 63

Junction box

Question 64

Box with a black cover inserted to one more raceways to facilitate pulling of the conductors

Answer 64

Pull box

Question 65

An enclosure designed for surface mounting and having swinging doors or covers secured directly to and telescoping within the walls of the box proper

Answer 65

Panel box

Question 66

The methods and means of governing the performance of an electrical apparatus, equipment, fixtures, machine or system

Answer 66

Cut-out box

Question 67

The conductor encased within material of composition and thickness that is recognized by its code as electrical insulation

Answer 67

Insulated

Question 68

A measure of the rate of flow of electricity

Answer 68

Amperes

Question 69

A measure of electric pressure

Answer 69

Volts

Question 70

A Special switch which is an essential part of a standby power arrangement, basically in double throw

Answer 70

Automatic transfer switch

Question 71

A measure of the amount of energy or work that can be done

Answer 71

Watts

Question 72

A form of air switch in which hinge copper blame is placed between two clips

Answer 72

Knife Switch

Question 73

An assembly of module conductors used to carry our amount of current (power). Instead of using several parallel or single large conductor, a bar assembly is adapted.

Answer 73

Busway

Question 74

The most common conductor used in different types of house wires and cables. Its frequent use is due to its good electrical conductivity, low resistance, and mechanical strength

Answer 74

Copper

Question 75

A switch in which the interruption of a circuit occurs in air

Answer 75

Air switch

Question 76

Tubing that contains individual insulated wires

Answer 76

Conduit

Question 77

A point in the wiring system at which current is taken to supply utilization equipment, any point that supplies an electric load.

Answer 77

Outlet

Question 78

Ratio between the true power and the apparent power of a load in an AC circuit

Answer 78

Power factor