BU

Question 1

A scattered reflection of light from an irregular surface or an erratic dispersion through a translucent material

Answer 1

Diffusion

Question 2

Anything physical or an environment that interferes with communication or listening. A poor acoustical environment can be a barrier to good listening and especially so for persons with a hearing impairment

Answer 2

Barrier

Question 3

The rate of flow of visible light per unit time expressed in lumens

Answer 3

Luminous flux

Question 4

The distance an elastic body or spring moves when subjected to a static or dynamic force. Typical units are inches or mm.

Answer 4

Deflection

Question 5

The physical resonance to sound pressure and intensity.

Answer 5

Loudness

Question 6

A high intensity discharge lamp producing light by means of an electric discharge in sodium vapor

Answer 6

sodium lamp

Question 7

The energy expended during the sound wave vibration

Answer 7

Noise

Question 8

A type of light which gives yellow light; the filament inside the bulb provides a small, concentrated glow of light when an electric current heat the filament to the glowing point

Answer 8

incandescent lighting

Question 9

The distance between two identical positions in the cycle or wave.

Answer 9

Wavelength

Question 10

A lighting method that makes used of lights to develop different moods/accent objects for interest

Answer 10

decorative lighting

Question 11

Reflected sound producing a distinct repetition of the original sound.

Answer 11

Echo

Question 12

Long source of light over a window; its light illuminates the wall and draperies for spacious effect

Answer 12

Balance

Question 13

The number of oscillations or cycles per unit of time.

Answer 13

Frequency

Question 14

A type of lamp generally used for roadways and sidewalks, uses sodium gas.

Answer 14

High-Pressure-Sodium (HPS)

Question 15

The branch of physics that treats the phenomena and laws of sounds as it affects people

Answer 15

Acoustics

Question 16

A type of lamp popular for lighting commercial interiors, it uses argon gas to ease starting, it produces light by means of an electric discharge in mercury vapor. It is a high intensity discharge lamp producing light by means of an electric discharge in sodium vapor

Answer 16

Mercury Lamp

Question 17

The percentage of speech heard correctly by the listener

Answer 17

Speech intelligibility

Question 18

A type of lamp that produces light by means of the reaction of halogen additive in the bulb reacts chemically with tungsten. It is a tungsten lamp having a quartz bulb containing a small amount of halogen that vaporizes on heating and redeposit any evaporated tungsten particles back onto the filament.

Answer 18

Tungsten Halogen Lamp

Question 19

Measured by the strength of the sound, depicted as a sine wave above and below the normal atmospheric pressure

Answer 19

Loudness

Question 20

Sounds of a frequency higher than 20,000 Hz

Answer 20

Ultrasound

Question 21

The measure of the effectiveness with which a lamp converts electric power into luminous flux, equal to the ratio of flux emitted to power input and expressed in lumens per watt.

Answer 21

Luminous efficacy

Question 22

The time taken for sound to decay 60 dB to 1/1,000,000 of its original sound level after the sound source has stopped.

Answer 22

Reverberation

Question 23

Indirect lighting directed upward from an interior cornice at the edge of ceiling

Answer 23

cove lighting

Question 24

A subjective impression of equal loudness by listeners as a function of frequency and sound level (dB)

Answer 24

Phon

Question 25

A measurement of sound intensity

Answer 25

Sabin

Question 26

Anything physical or an environment that interferes with communication or listening.

Answer 26

Sound Barrier

Question 27

The scattering or random reflection of a sound wave from a surface.

Answer 27

Diffusion

Question 28

The transmission of sound around the perimeter or through holes within partitions (or barriers) that reduces the otherwise obtainable sound transmission loss of a partition.

Answer 28

Flanking

Question 29

This device, in escalators, stops the escalator automatically if an abnormal current is supplied to the motor.

Answer 29

Current Overload Safety Switch

Question 30

An air conditioning equipment used to remove the larger dirt and pollen particles in order to prevent clogging of spaced between the plates

Answer 30

Filter

Question 31

A return bend of small-sized pipe one end of which is about one foot long and the other is about three inches long.

Answer 31

Gooseneck

Question 32

The process by which heat energy in the form of electromagnetic waves is emitted by a warm body, transmitted through an intervening space, and absorbed by a cooler body.

Answer 32

Radiation

Question 33

The transfer of heat by the circulatory motion of the heated parts of a liquid or gas owing to a variation in density and the action of gravity. In other words, the body gives off heat to the surrounding cooler air.

Answer 33

Convection

Question 34

The ratio of the amount of water vapor actually present in the air to the maximum amount that the air could hold at the same temperature, expressed as a percentage

Answer 34

relative humidity

Question 35

An instrument for measuring atmospheric humidity, consisting of two thermometers, the bulb of one being dry and the bulb of the other being kept moist and ventilated

Answer 35

Psychrometer

Question 36

This shows the vertical relationships of all panels, feeders, switches, switchboards, and major components are shown up to, but not including, branch circuiting, it is an electrical version of a vertical section taken through the building.

Answer 36

Riser Diagram

Question 37

The end of pipe which fits into a bell

Answer 37

Spigot

Question 38

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

Answer 38

Ball cock

Question 39

A group vent extending from in front of the last fixture connection on a horizontal branch to the stack

Answer 39

circuit venT

Question 40

XHHN in wire specification means.

Answer 40

Moisture and Heat Resistant- Cross-Linked Thermosetting

Question 41

It prevents passengers from falling into the hoist way when they try to get out of the car which is stopped between the floors.

Answer 41

Fascia Plate

Question 42

A vertical pipe usually used for the storage of water, frequently under pressure

Answer 42

stand pipe

Question 43

A static device consisting of windings, with or without taps, with or without magnetic core, used for introducing mutual coupling by induction between circuits

Answer 43

Transformer

Question 44

Valve that automatically closes to prevent the flow of water in a reverse direction

Answer 44

check valve

Question 45

The final distribution point feeding out to the branch circuits containing the electrical utilization apparatuses and devices

Answer 45

panel board

Question 46

A metal or a plastic box with a blank cover for insertion into a conduit run, raceway, or metallic tubing, which facilitates the drawing of conductors.

Answer 46

junction box

Question 47

In elevator it stops the car and counterweight in case of emergency by actuating the safety

Answer 47

governor

Question 48

A closed vessel or arrangement of vessel and tubes in which water is heated or steam is generated

Answer 48

Boiler

Question 49

The concussion and banging noise that can occur when a volume of water moving in a pipe is shut off abruptly

Answer 49

water hammer

Question 50

The clear vertical distance between the spout of a faucet or other outlet of a supply pipe and the flood level of a receptacle.

Answer 50

air gap

Question 51

Short length of pipe with threads on each end, used for joining couplings or other pipe fittings.

Answer 51

Nipple

Question 52

Short lengths of pipe having each end threaded on the inside, used for joining two pipes of the same diameter

Answer 52

Coupling

Question 53

These are vents that provides circulation of air between a draining and a venting system by connecting a vent stack to a horizontal drain between the first fixture and the soil or waste stack

Answer 53

relief vent

Question 54

A vent that connects one or more individual vents with a vent stack or stack vent

Answer 54

branch vent

Question 55

Refers to the waste water from sink, baths, showers, and dishwashers, which can be treated and recycled for such uses as toilet flushing and irrigation

Answer 55

greywater

Question 56

Switches that automatically interrupt an electric circuit to prevent excess current from damaging apparatus in the circuit or causing a fire

Answer 56

circuit breaker

Question 57

A switch that is single-pole, double-throw, used in conjunction with another to control lights from two location

Answer 57

three-way switch

Question 58

Plugging an opening with oakum, lead or other materials that are pounded into place

Answer 58

Calking

Question 59

Device to measure the voltage of the circuit/ an instrument for measuring the voltage drop between any two points in an electric circuit.

Answer 59

Voltmeter

Question 60

The temperature of the air-water vapor mixture will become saturated and begin to yield drops of condensed water.

Answer 60

Dewpoint

Question 61

. If two fixtures are connected, how many kilograms should be the grease retention capacity of grease trap?

Answer 61

23

Question 62

For restaurants pubs and lounges, how many water closets should be provided for 45 female costumers?

Answer 62

3

Question 63

The depth of elevator lobbies serving four or more cars should generally not be less than:

Answer 63

10 feet (3.00m)

Question 64

A method of protecting the ferrous materials like steel, iron from rusting or corroding

Answer 64

rust proofing

Question 65

The fire detection, smoke detection, and intrusion alarm device all operate from a ___________; the alarm bell is common

Answer 65

single control panel

Question 66

The central television antenna system is a desirable feature of the modern residence. Systems with more than two outlets generally require a booster amplifier and are known as __________systems.

Answer 66

amplified

Question 67

When garbage from different floors of a high-rise building is disposed from an opening and is directly led to the basement garbage bin. This is called the ________

Answer 67

rubbish chutes

Question 68

The common way of disposing solids is by ________. This is a controlled burning of combustible waste. This can be an effective waste reduction method for 70 percent of all solid municipal wastes. If this is operated properly, it can reduce bulk by 90 to 95 percent. Ash left over is generally disposed off in landfill.

Answer 68

incineration

Question 69

A receptacle or water tight vault used to collect organic waste discharge from the house sewer and designed and constructed so as to separate solids from the liquid, digest the organic matter through a period of detention, and allow the effluent to discharge a storm drain.

Answer 69

septic tank

Question 70

A pipe which conveys only liquid wastes free of fecal matter

Answer 70

waste pipes

Question 71

A pipe or opening used for ensuring the circulation of air in a plumbing system and for relieving the negative pressure exerted on trap seals.

Answer 71

. vent pipe

Question 72

It provides a convenient handhold for passengers while they are riding the escalator. This is pulled along its track by a chain that is connected to the main drive gear by a series of pulleys.

Answer 72

handrail

Question 73

One Of the basic components of an escalator which is made up of solid, one piece, die-cast aluminum or steel. Yellow demarcation lines may be added to clearly indicate their edges.

Answer 73

landing platforms

Question 74

A type of lighting that are used for both residential and commercial lighting. They can be designed to focus light, and are widely used for task lights. They radiate very little heat and are highly energy-efficient.

Answer 74

LED lights

Question 75

The systems that simultaneously control the temperature, humidity, purity, distribution, and motion of the air in the interior spaces of a building.

Answer 75

HVAC system

Question 76

It consists of the handrail and the exterior supporting structure of the escalator. It is the escalator exterior components extending above the steps and it supports the handrail.

Answer 76

balustrade