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BU Correl > Correl OTs > Flashcards

Correl OTs Flashcards

1
Q

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

A

Ball cock

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2
Q

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

A

Centrifugal pump

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3
Q

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

A

Surface water

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4
Q

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

A

PVC

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5
Q

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

A

Pressure reducing valve

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6
Q

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

A

Riser

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7
Q

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

A

Plumbing

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8
Q

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

A

Pressure test

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9
Q

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

A

Flushometer valve

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10
Q

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

A

Curb cock

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11
Q

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

A

d. asbestos prefab

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12
Q

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

A

45 elbow

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13
Q

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

A

To convey the foul smell present in the pipes

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14
Q

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

A

5% slope of pipe line

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15
Q

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

A

Stack

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16
Q

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

A

To maintain economical use of material

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17
Q

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

A

Sanitary or long sweep elbow

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18
Q

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

A

House sewer

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19
Q

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

A

siphonage

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20
Q

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

A

Backflow valve

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21
Q

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

A

Bag Trap

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22
Q

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

A

Trap seal loss

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23
Q

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

A

Two line system installation

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24
Q

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

A

Public sewer line

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25
Q

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

A

1 1/2”

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26
Q

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

A

Rear storm drain

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27
Q

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

A

Area drain

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28
Q

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

A

Backflow

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29
Q

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

A

Scum

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30
Q

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

A

Drum Trap

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31
Q

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

A

The reciprocal of ohm

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32
Q

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

A

Watt

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33
Q

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

A

Rigid metal conduit (RMC)

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34
Q

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

A

One lumen per square meter

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35
Q

The following are elements of centralized air-conditioning system except

A

Control equipment

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36
Q

A transformer is

A

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

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37
Q

The following are ways in which heat may be transferred except

A

Polarisation

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38
Q

Acoustics is a science that concerns with

A

All of the above

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39
Q

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

A

Varies inversely with

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40
Q

Creep is the phenomenon where by sound travel in a ____

A

Curve surface

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41
Q

Sound transmission loss is affected by the following

A

All of the above

42
Q

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

A

Acoustical tile

43
Q

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

A

Bonded acoustical panel

44
Q

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

A

Busway

45
Q

It affects the resistance of a conductor

A

All of the above

46
Q

It is also known as electrical panel or load center

A

Panelboard

47
Q

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

A

pipe

48
Q

It is analogous to pressure in water flow

A

Voltage

49
Q

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

A

Environmental acoustics

50
Q

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

A

Ideal for audio room application

51
Q

Alternating current is characterized as having

A

All of the above

52
Q

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?

A

Carpet

53
Q

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

A

Structureborne sound

54
Q

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

A

Hermholtz resonator

55
Q

What is the minimum distance between the handrails of escalators?

A

600mm

56
Q

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

A

threshold hearing

57
Q

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

A

c. Both a and b

58
Q

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?

A

Loose fill insulations

59
Q

A circuit type where components are electrically connected end to end

A

Series parallel circuit

60
Q

Unit of capacitance is

A

Coulomb

61
Q

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

A

Non-metallic sheath cable (type NMC)

62
Q

The basic elements of an electric circuit or the following except

A

Electrical load

63
Q

Cables are contractors that are

a. Larger than wires
b. Standard
c. Both and b
d. None of these

A

c. Both and b

64
Q

Copper as a conductor has the property of being

a. Ductile
b. Malleable
c. A only
d. A and b

A

d. A and b

65
Q

The velocity of sound is affected by

A

Kind of medium

66
Q

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

A

c. Both a and b

67
Q

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

A

Copper

68
Q

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

A

c. Both a and b

69
Q

What is the refrigerant name of R-12

A

Dichlorodifluoromethane

70
Q

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

A

20% opening

71
Q

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

A

Multi outlet assembly

72
Q

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

A

Accelerating motorcycle 50 feet away

73
Q

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

A

Transfer switch

74
Q

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

A

Aerated concrete is fairly absorptive

75
Q

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

A

Conductor

76
Q

One horsepower =

A

746 watts

77
Q

Electric elevator machine room is located at the

A

Basement

78
Q

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

A

Truss

79
Q

It is a mechanical device for transporting persons between two levels

A

Collator

80
Q

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

A

Demand factor

81
Q

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

A

Elevator

82
Q

A device for heating water are generating steam above atmospheric pressure

A

Boiler

83
Q

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

A

Compressor

84
Q

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.

A

Air conditioning

85
Q

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

A

Conveyor

86
Q

Machine that converts mechanical energy into electrical energy called

A

Generator

87
Q

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.

A

Cooling tower

88
Q

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

A

Dumb waiters

89
Q

Give stability to governor ropes

A

Tension sheave

90
Q

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

A

Alternator

91
Q

These are vertical tracks that guide the car and counterweight

A

Guide rails

92
Q

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

A

Counterweight

93
Q

It is a vertical passageway for the car in counterweight

A

Shaft

94
Q

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

A

Spring buffer

95
Q

A device used for moistening the air at the desired degree

A

Humidifer

96
Q

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

A

Centralized air-conditioning

97
Q

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

A

Freight elevator

98
Q

It is a device to control the temperature

A

Thermostat

99
Q

The following statements are true with regards to sound except

A

The sound is an aural sensation

100
Q

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

A

Waste stack

BU Correl (5 decks)

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