JPT Building Utilities

Absorption

When a sound wave strikes an acoustical material, it causes the particles of the material to vibrate. This vibration will produce heat due to the friction created by the vibrating particles. Hence, energy from sound is converted to heat.

A desirable property of an acoustic material is sound ____.

a. Isolation

b. Reflection

c. Transmission

d. Absorption

Flutter

A buzzing/clicking sound comprised of repeated echoes traversing back and forth between two reflective surfaces.

a. Creep

b. Baffling

c. Flutter

d. Standing Wave

30db

Transmission coefficient is 0.001, what is the TL?

a. 50db

b. 40db

c. 30db

d. 20db

Sound Insulation Formula:

R=10log(Wi/Wt) = 10log(1/τ)[dB]

R - Sound Reduction Index (Transmission Loss, TL)

τ - Transmission Coefficient

Ultrasonic

The range of sound that the human ear can detect is 20 - 20,000 Hertz (Hz).

More than 20,000 Herts is called ____.

a. Ultrasonic

b. Ultrasound wave

C. High Frequency

d. N/A

Convex

For a conference room, which will you apply for the best sound diffusion?

a. Flat

b. Inclined

c. Concave

d. Convex

Parabola

Shape of a room with one focus point.

a. Circle

b. Ellipse

c. Parabola

d. Square

Ellipse

Shape of a room where there are two focus points. The sound projected from one focus point, in any direction, will travel to the other focus point.

Drywall with Insulation

Which among the choices given is the best way to prevent sound transition

a. Cavity Wall

b. Double Wall

c. Drywall with Insulation

d. Gypsum Board

Radiant Barrier

Identify.

Wood Foam

Identify.

This product won the 2015 GreenTec Award. It is produced by finely grinding wood until the particles become a viscous mass. Gas is then added to produce a frothy foam which is allowed to harden. The resulting product is then formed into sheets or boards.

Size of Room

Which does NOT affect the transmission of sound from one room to another?

a. Size of Room

b. Thickness of Wall

c. Area of Wall

d. Material of wall of the next room.

Gypsum Board w/ Fixed Glass

Considering acoustics, what type of partition will you use between an office and a music room, if the office manager wants to see what's happening inside the music room?

a. 6" CHB w/ Fixed Glass

b. 3/4" Plywood Double Walled w/ Fixed Glass

c. Gypsum Board w/ Fixed Glass

d. Gypsum Board w/ Sliding Glass

9" CHB Wall

Which one is the least effective in preventing sound from transmitting to the other side of the room?

a. 12" Double Brick Wall

b. 9" Brick Wall

c. 9" CHB Wall

d. 7" Concrete Wall

12" Double Brick Wall

Which will absorb heat faster?

a. 12" Double Brick Wall

b. 9" Brick Wall

c. 9" CHB Wall

d. 7" Concrete Wall

12" Double Brick Wall

Which wall will retain heat longer?

a. 12" Double Brick Wall

b. 9" Brick Wall

c. 9" CHB Wall

d. 7" Concrete Wall

12" Double Brick Wall

What is the best sound insulation to be used for a house fronting a busy highway?

a. 12" Double Brick Wall

b. 9" Brick Wall

c. 9" CHB Wall

d. 7" Concrete Wall

Investigation Room

Which offers confidential privacy?

a. Rowhouses

b. Office Cubicles

c. Investigation Room

d. Wet Market

Office Cubicles

Which offers normal privacy?

a. Rowhouses

b. Office Cubicles

c. Investigation Room

d. Wet Market

Rowhouses

Which offers transitional/transmittal privacy?

a. Rowhouses

b. Office Cubicles

c. Investigation Room

d. Wet Market

Wood

You were commissioned to design a music room. What will you use for the flooring?

a. Marble

b. Wood

c. Carpet

d. Tiles

Carpet

Which of the following flooring material would you recommend for a music room?

a. Vinyl

b. Linoleum

c. Vinyl Composite

d. Carpet

Smooth Glass

Which is NOT a good partition for a noisy and crowded space?

a. Wood

b. Smooth Glass

c. Textured Masonry

d. Metal with Texture

Put a spotlight atop the skylight

At day, artificial lighting comes from the skylight above, making the beams and columns produce different plays of light. How do you achieve this at night?

a. Put a spotlight atop the skylight

b. Floor-mounted light projecting upwards

c. Place light just below the beam projecting downwards

d. Place a light anywhere. It doesn't matter.

Accent Lighting

A type of lighting that provides illumination to special objects like sculptures, flower arrangements, etc.

a. Task Lighting

b. Accent Lighting

c. General Lighting

d. Specific Lighting

Track Lighting

Lighting provided by adjustable spotlights mounted along a narrow, ceiling or wall mounted metal track through which current is conducted.

a. Track Lighting

b. Troffer Lighting

c. Flood Lighting

d. Indirect Lighting

Integrated CFL

When a CFL fits into a light fixture designed for an incandescent bulb, it is a/an ____.

a. LED Bulb

b. Integrated CFL

c. Non-integrated CFL

d. Ballast-less CFL

CFL

Average life span of 8000 hours.

a. LED

b. Incandescent

c. Halogen

d. CFL

LED

Average life span of 50,000 hours.

a. LED

b. Incandescent

c. Halogen

d. CFL

LED

Which would you recommend as a secondary source of light if you want to conserve energy?

a. Fluorescent

b. CFL

c. Incandescent

d. LED

LED

Which among the following does NOT belong?

a. LED

b. Metal Halide

c. Low Pressure Sodium

d. High Pressure Sodium

Metal Halide

Type of lighting used for billboards?

a. Metal Halide

b. LPS Lamp

c. Spotlight

d. Mercury Vapor

Metal Halide

What type of light is used for an oval track and stadium?

a. Fluorescent Light

b. Metal Halide

c. LPS Lamp

d. Mercury Vapor

T12

A rectangular light fixture that fits into a dropped ceiling is usually designed to accommodate ___.

a. MR 16

b. PAR 20

c. LED PAR 30

d. T12

Projection Light

A light used to illuminate the subject or an object from the back.

A. Projection Light

b. Backlight

c. Background Light

d. Stage Light

Fluorescent Lamp

Type of lighting that contains mercury. It is actually a gas-discharge lamp that uses electricity to excite mercury vapor inside a tube. The mercury atoms produce short-wave ultraviolet light that in turn causes the phosphor coating in the tube to produce visible light.

a. Incandescent Bulb

b. CFL

c. Fluorescent Lamp

d. LED Light

11W CFL

Using Pin Light to illuminate a toilet, which is the most applicable from the given choices?

a. 50W Halogen

b. 26W CFL

c. 11W CFL

d. 10W Incandescent

100W

Which is NOT a commercial wattage for fluorescent light?

a. 100W

b. 20W

c. 40W

d. 36W

Flood light

Provides uniform light on a wide area.

a. Flood light

b. Spot light

c. Control light

d. Directional light

Fluorescent Lamp

What type of light is used for cove lighting?

a. Fluorescent Lamp

b. Metal Halide

c. Halogen

d. Incandescent

Alcove

A lighting element usually installed at the lavatory area which is also considered a wall-mounted decoration.

a. Ledge

b. Alcove

c. Bracket

d. Support

T5

What do you call a fluorescent tube that is 5/8' in diameter?

a. T5

b. T8

c. T58

d. Small

Cove Lighting

Where do you usually use a T5 fluorescent?

a. Cove Lighting

b. Factory Workshop

c. Parking

d. Arena

LED

Which light is used for reading?

a. CFL

b. Incandescent

c. Halogen

d. LED

Recessed Light

A type of light fixture wherein the protective housing is concealed behind a ceiling or wall, leaving only the fixture itself exposed.

a. Recessed Light

b. Pendant Light

c. Surface-mounted Light

d. Sconce Light

Pendant Light

A type of light fixture suspended from the ceiling with a chain or pipe.

a. Recessed Light

b. Pendant Light

c. Surface-mounted Light

d. Sconce Light

Cool Light

What lighting should you use for a task area?

a. Cove Light

b. Day Light

c. Cool Light

d. Warm Light

230 V

The standard power voltage does MERALCO provide?

a. 220 V

b. 230 V

c. 110 V

d. 120 V

60 Hz

As mandated by the Energy Regulating Board, what is the standard frequency provide by MERALCO to its consumers?

a. 50 Hz

b. 60 Hz

c. 70 Hz

d. 80 Hz

14 mm²

What is the minimum size of wire to be used for Service Drop?

a. 14 mm²

b. 22 mm²

c. 8 mm²

d. 3.5 mm²

15 mm dia

What is the minimum size of a Service Drop wire?

a. 15 mm dia

b. 19 mm dia

c. 22 mm dia

d. 25 mm dia

3

How many wires come out from the transformer (electric company)?

a. 2

b. 3

c. 4

d. 5

Service Drop

Only the Electrical Utility Company is allowed to disable this.

a. Main Panel Board

b. Cable Tray

c. Service Drop

d. Circuit Breaker

Green

What is the standard color of a ground wire?

a. Yellow

b. White

c. Blue

d. Green

Red

What is the code for live wire?

a. Red

b. Black

c. Yellow

d. White

White (or Gray)

What is the code for neutral wire?

a. Red

b. Black

c. Yellow

d. White

Yellow (or Blue)

Are also used to carry power but are not for wiring the outlets for common plug-in electrical devices. These colours are used for the live wire pulled through conduit. You will use ____ mainly as switch legs to fans, structural lights and switched outlets. You will use ____ mainly as a traveller for a three-way or four-way switch.

a. Red

b. Black

c. Yellow

d. White

Black

Is used for power in all circuits. Any circuit's black wire should be considered hot or live. _____ wire is never used for a ground or neutral wire and should be used as the power feed for a switch or an outlet. A black wire is often used in a circuit as a switch leg, the connection that runs from the switch to the electrical load.

a. Red

b. Black

c. Yellow

d. White

Transmitter

What is not part of a lightning arrester?

a. Down Conductor

b. Earthen Material

c. Transmitter

d. Lightning Rod

Fire Alarm Control Panel

What is FACP?

a. Fire Alarm Control Point

b. Fire Automated Control Panel

c. Fire Alarm Convenience Panel

d. Fire Alarm Control Panel

Cagayan River

A source of electricity, it is also the longest (350km) and largest river (by discharge) in the Philippines.

a. Cagayan River

b. Agusan River

c. Rio Grande de Mindanao

d. Pasig River

Switch

In plumbing, a valve is used to regulate the flow of water. What is its counterpart in electrical?

a. Convenience Outlet

b. Switch

c. Circuit Breakers

d. Fuse

Type B

The plug type shown in the figure is known as ____.

a. Type A

b. Type B

c. Type O

d. Type N

Type O

The plug type shown in the figure is known as ____.

a. Type A

b. Type B

c. Type O

d. Type N

Type A

The plug type shown in the figure is known as ____.

a. Type A

b. Type B

c. Type O

d. Type N

Coax Cable Wall Outlet

Identify.

a. Telephone Wall Jack

b. Coax Cable Outlet

c. RJ45 Wall Port

d. VGA Wall Port

HDMI Wall Port

Identify.

a. VGA Wall Port

b. HDMI Wall Port

c. RJ45 Wall Port

d. XVGA Wall Port

MATV Wall Port

Identify.

a. XVGA Wall Port

b. MATV Wall Port

c. RJ45 Wall Port

d. CATV Wall Port

Junction Box

A box used to contain splicing of electrical wires usually intended to conceal them from sight and deter tampering.

a. Junction Box

b. Utility Box

c. Switch Box

d. Pull Box

Utility Box

This is used and located at the back of a convenience outlet.

a. Junction Box

b. Utility Box

c. Switch Box

d. Pull Box

Pull Box

A metal box with a blank cover that is installed in an accessible place in a run of conduit to facilitate pulling of wires or cables.

a. Junction Box

b. Utility Box

c. Switch Box

d. Pull Box

Circuit Breaker

Identify.

a. ATS

b. Circuit Breaker

c. Panel Board

d. Alternator

5.5 mm²

Minimum size of wire for a 60amp circuit breaker.

a. 8 mm²

b. 14 mm²

c. 22 mm²

d. 5.5 mm²

The circuit breaker worked as expected

When a circuit breaker switches off, what does it tell you?

a. Time to buy a new one

b. The appliance is already burning

c. The circuit breaker worked as expected

d. Defective circuit breaker

Top Part of the Wall

Where should you install a tankless point of use water heater?

a. Top Part of the Wall

b. Middle Part of the Wall

c. Lower Part of the Wall

d. Doesn't Matter

Jumper

It is a conductor used to bypass part of an electrical circuit.

a. Circuit Breaker

b. Jumper

c. Conduit

d. ATA Slave

CATV (Cable Television; originally Community Access Television or Community Antenna Television)

Which is NOT a protective device?

a. UPS

b. CATV

c. Voltage Regulator

d. Surge Protector

LED Driver

The electrical device shown is used to regulate the power supply in order to control certain lighting fixtures e.g. on, off, dimming, etc. What is it?

a. LED Transformer

b. RGB Controller

c. LED Driver

d. LED Controller

Ballast

It is placed in line with the load to limit the amount of current in an electrical circuit.

a. Ballast

b. Discharger

c. Diode

d. Cathode

Automatic Transfer Switch (ATS)

It automatically transfers electrical load between two sources, usually between backup generator and the electrical power utility source. It commands the backup generator to start, based on the voltage monitored on the primary supply. When power returns, it will also revert the system back to the power utility and turn off the generator.

a. Transfer Switch (TS)

b. Uninterruptible Power Supply (UPS)

c. Automatic Voltage Regulator (AVR)

d. Automatic Transfer Switch (ATS)

Thermal Overload Relay

The figure shows an electromechanical device that protects motors from overheating. It helps to control the electrical current that goes to the motor to prevent it from overheating. If the motor pulls too much electricity for an extended period of time, it will flip and cut the power.

a. Ballast

b. Switch

c. Thermal Overload Relay

d. Circuit Breaker

Ground Floor

Best location for a Generator.

a. Basement

b. Ground Floor

c. 2nd Floor or near it

d. Roof Deck

NEMA box

The figure shown is an enclosure that is rated to provide protection against environmental hazards such as water, dust, oil, coolant or atmospheres containing corrosive agents by the association of electrical equipment manufacturers in the United States. What is it?

a. AEEM box

b. NEMA box

c. Juke Box

d. Pandora's Box

Switchboard

The figure shown allows the distribution of the current supplied into smaller currents for further distribution to transformers, control equipment and individual system loads.

a. Panel Board

b. Automatic Transfer Switch

c. Panel Board

d. Switchboard

Main Distribution Panel

What is an MDP?

a. Micro Data Processor

b. Main Distribution Panel

c. Multidisciplinary Design Program

d. Mini Display Port

Panel Board

A component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing protection for each circuit in a common enclosure. It has a main switch which will cut supply to all circuits.

a. Panel Board

b. Feeder

c. Raceway

d. Circuit Breaker

Electrical Riser

A special conduit for electrical wiring of a building arranged in an orderly, organized and safe way mostly in a vertical fashion. It runs from one floor to another.

a. Busway

b. Raceway

c. Electrical Riser

d. Cable Tray

Intemediate Metallic Conduit (IMC)

Which will you recommend for a high-rise building riser?

a. Intermediate Metallic Conduit (IMC)

b. Electric Metallic Tubing (EMT)

c. PVC jacketed

d. Not listed

Electric Metallic Tubing (EMT)

Also called "thin-wall", it is a steel raceway of circular cross section which is unthreaded and normally 10 feet long. It is installed by the use of setscrew, indentation or compression-type couplings and connectors. It can also have an integral coupling by having a bell at one end.

a. Rigid Metal Conduit (RMC)

b. Intermediate Metallic Conduit (IMC)

c. PVC

d. Electric Metallic Tubing (EMT)

Air Conditioning

What is the science of lowering the temperature of the immediate surroundings?

a. Refrigeration

b. Humidification

c. Air Conditioning

d. Dehumidification

Air Conditioner

It draws moist air from a room over a refrigerated coil with a fan. The cold evaporator coil condensed the water, which is removed, and then the air is reheated by the condenser coil. The now re-warmed air is released back into the room. What equipment is this?

a. Humidifier

b. Dehumidifier

c. Air Conditioner

d. Evaporative Cooler

Air Conditioner

It alters the property of air by letting it pass over cold evaporator coils and then directly into the room. Air is not re-heated by passing over the condenser. Instead, the refrigerant is pumped by the compressor to a condenser which is located outside the room and heat is released outside. What equipment is this?

a. Humidifier

b. Dehumidifier

c. Air Conditioner

d. Evaporative Cooler

Decrease Ceiling Height

Which among the considerations will best increase the efficiency in air conditioning?

a. Decrease Floor Area

b. Decrease Ceiling Height

c. Increase mounting height of ACU

d. Decrease slope of roof

Increase Ceiling Height

Which will best increase efficiency in passive cooling?

a. Increase Floor Area

b. Increase Ceiling Height

c. Increase Slope of Roof

d. Decrease Slope of Roof

Upper part of a wall

Where is the best location for a window-type aircon?

a. Lowest part of a wall

b. Upper part of a wall

c. Middle part of a wall

d. Ceiling

Top of the wall

Where would you locate a window-type aircon?

a. Middle of the wall

b. Aligned with the window sill

c. Top of the wall

d. Below of the window sill

At the ledge

At a manufacturing plant, the office is at the 2nd Floor. The office is being cooled by a 2HP window-type air conditioner located beside a glass window. There is a ledge outside. Where is the best location for the ACCU?

a. Inside the office

b. Anywhere outside the office

c. At the ledge

d. None

Cassette Type

For a 20sqm Manager's Office located in a central core activity (at the center of the floor), which air conditioning system is most appropriate?

a. 2HP Window Type

b. 5TR Floor Mounted

c. 1TR Floor Mounted

d. Cassette Type

Evaporator Coil

A split-type air conditioner has both an outdoor and an indoor unit. Which of the following is not found in the outdoor unit?

a. Condenser

b. Expansion Valve

c. Evaporator Coil

d. Compressor

Air Curtain

This equipment uses a stream of compressed air directed downwards to form a shield to exclude drafts. Prevents hot air as well as dust from inside the building.

a. Air Sweeper

b. Mechanical Exhaust

c. Air Curtain

d. ACU

Chiller-type Air Con

For a sprawling factory, which of the following is an appropriate air conditioning system?

a. Split-type Air Con

b. Chiller-type Air Cond

c. Industrial Fan

d. Window-type Air Con