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Worksheets

UTILITIES - ELECTRICAL

Total questions: 100

Worksheet time: 50mins

Name
Class
Date
1.

The force which causes movement of electricity in a conductor

a)

Electromotive Force

b)

Pressure

c)

Electric Circuit

d)

Electric Current

2.

A circuit that is broken, incomplete or disconnected

a)

Open Circuit

b)

Open Circuit

c)

Shunt

d)

Short Circuit

3.

Varies between reversal of flow

a)

Alternating Current

b)

Direct Current

c)

Ampacity

d)

Rectified Current

4.

It is the current-carrying capacity of a wire without undue heating

a)

Resistance

b)

Polarity

c)

Ampacity

d)

Impedance

5.

Known as the electric flow in an electric circuit

a)

Electromotive Force

b)

Pressure

c)

Electric Circuit

d)

Electric Current

6.

It reverses direction of flow at regular intervals

a)

Alternating Current

b)

Direct Current

c)

Ampacity

d)

Rectified Current

7.

One volt is the pressure which causes one ampere to flow in a wire with a resistance of one ohm

a)

False

b)

True

c)

Not sure

d)

NOTA

8.

It converts Mechanical Energy to Electrical Energy

a)

Alternator

b)

Generator

c)

Motor

d)

Converter

9.

It converts Electrical Energy to Mechanical Energy

a)

Alternator

b)

Generator

c)

Motor

d)

Converter

10.

In working drawings, a Circuit Diagram is known

a)

Electrical Plan

b)

Layout

c)

Analysis

d)

Electrical Layout

11.

Unit of resistance or friction which is inherent in insulator is

a)

Ohms

b)

Ampere

c)

Volt

d)

Watts

12.

Unit of EMF

a)

Ohms

b)

Ampere

c)

Volt

d)

Watts

13.

The relationship of EMF, Current, Resistance

a)

Ohm’s Law

b)

Ohm’s Principle

c)

Relativity Theory

d)

Impedance Law

14.

How many cps is used for a residential single phase load?

a)

120 Hertz

b)

180 Hertz

c)

60 Hertz

d)

240 Hertz

15.

EMF used for household power supply

a)

115V

b)

230V

c)

120V

d)

210V

16.

Branch circuits are divided into 3 types by the PEC, and one of these is

a)

3P Circuit

b)

SP Circuit

c)

Integrated Circuit

d)

Independent Circuit

17.

A branch circuit is protected by

a)

Service Switch

b)

Circuit Breaker

c)

Switch Panel

d)

Service Board

18.

It prevents flow of electric current

a)

Conductor

b)

Insulator

c)

Wires

d)

Cable

19.

This offers low resistance

a)

Conductor

b)

Insulator

c)

Wires

d)

Cable

20.

LED is a type of fixture

a)

False

b)

True

c)

Not sure

d)

NOTA

21.

A receptacle that is placed 0.30m from the floor where an appliance is plugged

a)

Switch

b)

Jack

c)

Convenience Outlet

d)

Extension wire

22.

Another term for channel is

a)

Pipe

b)

Raceway

c)

Tubing

d)

Duct

23.

Height of switch installation

a)

0.90m

b)

1.20m

c)

1.50m

d)

1.80m

24.

Point of entry of electrical service is

a)

Service Cable

b)

Service Drop

c)

Gooseneck

d)

Service Oblique

25.

The Service Switch is usually located at

a)

Electrical Pole

b)

Carport

c)

Stairway

d)

Kitchen

26.

One type of appliance that is considered an independent circuit

a)

Electric Fan

b)

Range

c)

Microwave Oven

d)

Washing Machine

27.

One type of appliance that is not considered an independent circuit

a)

Pump

b)

Range

c)

Heater

d)

Washing Machine

28.

Height of installation for a Power Panel

a)

6'

b)

7'

c)

6'7"

d)

7'2"

29.

A single line diagram showing system components

a)

Key Plan

b)

Key Cock

c)

Riser

d)

Riser Diagram

30.

A type of conduit used primarily for service entrance cable

a)

EMC

b)

RSC

c)

IMC

d)

Riser

31.

Flat conductor cable is used for

a)

Range

b)

Aircon

c)

Heater

d)

All of the above

32.

Thermoplastic used for ceiling

a)

THHN

b)

TH

c)

TW

d)

THW

33.

Thermoplastic used for Toilet & Bath

a)

THHN

b)

TH

c)

TW

d)

THW

34.

This is used for telecommunication and as a submarine cable

a)

MI

b)

SNM

c)

NM

d)

ROMEX

35.

Thermoplastic used for Kitchen

a)

THHN

b)

TH

c)

TW

d)

THW

36.

Used for Service Entrance Lateral

a)

USE

b)

UF

c)

SE

d)

UE

37.

Used for Service Entrance Oblique

a)

USE

b)

UF

c)

SE

d)

UE

38.

Directly buried to the ground

a)

USE

b)

UF

c)

SE

d)

UE

39.

Used for Freezers, 24/7 equipment, ATMs and Cable TVs

a)

MI

b)

SNM

c)

NM

d)

ROMEX

40.

Meaning of THHN

a)

Thermoplastic, high-heat resistant, nylon jacket outer sheath

b)

Thermoplastic, heat resistant

c)

Thermoplastic, heat resistant, nylon jacket outer sheath

d)

Thermoplastic, wet resistant

41.

Assemblies of cables used for System furniture application and cable management

a)

Flat Conductor Cable

b)

Power Cable

c)

Feeder

d)

Flat Cable Assemblies

42.

Meaning of THWN

a)

Thermoplastic, moisture resistant, nylon jacket outer sheath

b)

Thermoplastic, heat resistant

c)

Thermoplastic, heat resistant, nylon jacket outer sheath

d)

Thermoplastic, wet resistant

43.

This cable uses copper for insulation

a)

SNM

b)

MI

c)

NM

d)

ROMEX

44.

Another Term for Armored Cable

a)

Thermoplastic

b)

ROMEX

c)

BX

d)

Flexible Non-metal

45.

Conduit used for Underground Feeder

a)

EMC

b)

RSC

c)

IMC

d)

Riser

46.

Known as closed raceway

a)

Bus

b)

Conduit

c)

Busbar

d)

Cable Tray

47.

Known as open wireway

a)

Bus

b)

Conduit

c)

Busbar

d)

Cable Tray

48.

Uses busduct or busway

a)

Bus

b)

Conduit

c)

Busbar

d)

Cable Tray

49.

Uses T-joist/ precast concrete slab with built in pipes

a)

underfloor raceway

b)

cellular metal floor raceway

c)

cellular concrete floor raceways

d)

underground raceway

50.

Uses rib decking for cable installation

a)

underfloor raceway

b)

cellular metal floor raceway

c)

cellular concrete floor raceways

d)

underground raceway

51.

Uses conventional electrical installation

a)

underfloor raceway

b)

cellular metal floor raceway

c)

cellular concrete floor raceways

d)

underground raceway

52.

A type of tray cable

a)

Rail type

b)

Rigid type

c)

Conduit

d)

Flexible type

53.

Characteristic of a bus

a)

flat

b)

rounded

c)

grounded

d)

flexible

54.

Characteristic of a busbar

a)

flat

b)

rounded

c)

grounded

d)

flexible

55.

Another name for bus

a)

Conductor

b)

Feeder

c)

Busway

d)

Circuit

56.

Purpose of louvers for cable bus

a)

for insulation

b)

for cooling

c)

for aesthetics

d)

heat dissipation

57.

Type of ceiling raceway used from transformers to switchboard

a)

Bus

b)

Busbar

c)

Busway

d)

Cable Bus

58.

Type of raceway used from Main Panel Board to Distribution Panelboard

a)

Bus

b)

Busbar

c)

Busway

d)

Cable Bus

59.

Type of raceway used from Distribution Panelboard to ceiling installation

a)

Tray Cable

b)

Busbar

c)

Busway

d)

Cable Bus

60.

Mesh Wire type is for

a)

Tray Cable

b)

Busbar

c)

Busway

d)

Cable Bus

61.

An electromechanical device

a)

Bus

b)

Circuit Breaker

c)

Busbar

d)

Cable Tray

62.

Detects short circuit and overload

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

63.

Known as the final distribution point for convenience outlets and lighting

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

64.

Part of a circuit breaker that senses undue heating and overload

a)

alloy link

b)

fusible link

c)

solenoid

d)

actuator switch

65.

A service disconnecting means

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

66.

Used in apartments through meter banks

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

67.

A free standing assemblies of switches, fuses/circuit breakers

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

68.

A synthetic non-flammable liquid used to insulate transformers

a)

Silicon

b)

Petroleum

c)

Glycerine

d)

Askarel

69.

A transformer used for large facility

a)

Service Switch

b)

Main Panelboard

c)

Generating Plant

d)

Unit Substation

70.

Type of transformer used to change voltage from 230V to 115V

a)

H-Frame

b)

Dry Type

c)

Cluster-mounted

d)

House Transformer

71.

An equipment that controls the circuit breaker

a)

Service Switch

b)

Panelboard

c)

Fuse Box

d)

Circuit Protective Devices

72.

Type of fuse used for simple circuitry in residence

a)

Cartridge Fuse

b)

Plug Fuse

c)

Solenoid Fuse

d)

Knife Blade Fuse

73.

Type of fuse used for dwellings

a)

Cartridge Fuse

b)

Plug Fuse

c)

Solenoid Fuse

d)

Knife Blade Fuse

74.

Type of fuse used for complex circuitry buildings

a)

Cartridge Fuse

b)

Plug Fuse

c)

Solenoid Fuse

d)

Knife Blade Fuse

75.

Uses alloy link or wire; fusible link

a)

Circuit Breaker

b)

Fuse

c)

Actuator Switch

d)

Fuselage

76.

A lighting fixture that has a housing is called

a)

Troffer

b)

Luminaire

c)

Pinlight

d)

Pendant

77.

Commercial base component for Incandescent Bulb

a)

Phenolic Base

b)

Screw Base

c)

Plug Point

d)

Bi-Pin

78.

Type of bulb that has filament

a)

LED

b)

Incandescent

c)

Fluorescent

d)

Metal Halide

79.

Type of lamp that has cathode

a)

LED

b)

Incandescent

c)

Fluorescent

d)

Metal Halide

80.

Meaning of PAR

a)

Pin Actuated Resolution

b)

Pan Arc Release

c)

Phon Art Rays

d)

Parabolic Aluminized Reflector

81.

Purpose of a starter

a)

to start the switch

b)

to start the ballast

c)

To start the filament

d)

to start the cathode

82.

Purpose of Ballast

a)

to start the switch

b)

to start the ballast

c)

To start the filament

d)

to start the cathode

83.

A type of lamp that has a pre-heat starting actuator

a)

CFL

b)

LED

c)

Incandescent

d)

Metal Halide

84.

A type of lamp that has instant starting actuator

a)

Slimline Fluorescent

b)

Pre-heat starting Fluorescent

c)

Rapid start fluorescent

d)

LED

85.

Type of Fluorescent used for Cove Lighting

a)

T5

b)

T12

c)

T24

d)

T8

86.

An electrical raceway either metallic or non-metallic

a)

Conduit

b)

Tubing

c)

Pipe

d)

Flexible Tubing

87.

A type of conduit used for feeders

a)

EMC

b)

IMC

c)

RSC

d)

IMT

88.

A type of conduit without thread

a)

EMC

b)

IMC

c)

RSC

d)

IMT

89.

A conduit fitting used for turning cables at 90°

a)

LB Condulet

b)

LL

c)

Solenoid Fuse

d)

Long Sweep Elbow Fitting

90.

A conduit fitting used for service entrance cable

a)

LB Condulet

b)

SE

c)

Entrance Ell

d)

Cap

91.

A surface mounted switch is called

a)

Push Button

b)

Toggle

c)

Time Switch

d)

Master Switch

92.

A flush mounted switch is called

a)

Push Button

b)

Toggle

c)

Time Switch

d)

Master Switch

93.

Controls the intensity of light

a)

Push Button

b)

Dimmer

c)

Time Switch

d)

Master Switch

94.

The symbol S1 or Sa means

a)

Two Gang

b)

Single Gang

c)

Three Gang

d)

Three-way

95.

The symbol S3W means

a)

Two Gang

b)

Single Gang

c)

Three Gang

d)

Three-way

96.

A device (at an outlet box) to which any plug-in extension line, appliance, or device can be connected

a)

Switch

b)

Receptacle

c)

Pull Box

d)

Outlet Box

97.

A point in a circuit where other devices can be connected.

a)

Switch

b)

Receptacle

c)

Pull Box

d)

Outlet

98.

A type of convenience outlet that is used outside located adjacent to Main and Service Entries

a)

Single Convenience Outlet

b)

Weatherproof Outlet

c)

Outlet Box

d)

Special Purpose Outlet

99.

The symbol S2 or Sab means

a)

Two Gang

b)

Single Gang

c)

Three Gang

d)

Three-way

100.

The type of convenience outlet that can receive both flat and round pins

a)

General Purpose Outlet

b)

Special Purpose Outlet

c)

Universal Outlet

d)

Two-way Outlet