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BU_electrical

Total questions: 40

Worksheet time: 27mins

Name
Class
Date
1.

energy generated by friction, induction or chemical change, having magnetic, chemical and radiant effect.

a)

electricity

b)

power

c)

frequency

d)

wattage

2.

type of generator that is used mainly for power and lighting

a)

direct current generators

b)

dynamo effect generators

c)

alternating current generators

d)

batteries

3.

converting electrical energy to mechanical energy

a)

power

b)

friction

c)

motors

d)

transformers

4.

converting one voltage to another; higher to lower; lower to higher

a)

motors

b)

alternators

c)

converters

d)

transformers

5.

changing alternating currents to direct current and vise versa

a)

transformers

b)

alternators

c)

rotary conventers

d)

motors

6.

rate of flow of one coulomb or 6.25 x 10 18 electrons / sec. through a given cross section

a)

ampere

b)

coulumb

c)

volt

d)

wattage

7.

an electromotive force

a)

watt

b)

newton

c)

volt

d)

hertz

8.

allow one ampere of current to flow when 1 volt is impressed upon it

a)

volt

b)

ampere

c)

ohm

d)

watt

9.

effective utilization of available energy by reducing loads and lowering demand charge

a)

load scheduling

b)

cycle control

c)

demand metering

d)

electric load control

10.

the installation of electrical load are analyzed and schedule to restrict demand

a)

load control

b)

load scheduling and duty cycle control

c)

automatic instantaneous demand control

d)

ideal curve control

11.

computerized system that forecast the amount of energy remaining in the demand of energy

a)

load meter

b)

kilowatt meter

c)

forecasting system

d)

demand meter

12.

minimum requirement for a branch circuit

a)

12-15 amp.

b)

20-25 amp

c)

2-20 amp

d)

8-20 amp

13.

supplying of utilities required or demanded by the public

a)

maintenance

b)

service

c)

demand

d)

supplier

14.

an auxiliary power station

a)

substation

b)

service station

c)

auxiliary station

d)

bus station

15.

underground portion of service conductor extending from main power line

a)

service line

b)

service underline

c)

service lateral

d)

underground service

16.

service conductor extending from a service drop or lateral to the service equipment of a building

a)

service conductor

b)

entrance conductor

c)

service entrance conductor

d)

main entrance conductor

17.

fire rated room housing a transformer and auxiliary equipment for large buildings

a)

transformer vault

b)

utility room

c)

fire vault

d)

fire safety vault

18.

contains the service equipment's for large buildings

a)

service equipment room

b)

switch gear room

c)

utility room

d)

switch room

19.

providing emergency power

a)

uninterruptible power supply

b)

standby generator

c)

emergency generator

d)

emergency power supply

20.

one or group of panel where switches are mounted

a)

switch panels

b)

switch box

c)

switch gear

d)

switch board

21.

free standing enclosure housing a disconnect switch, step down transformer and switch gear

a)

unit enclosure

b)

unit substation

c)

feeder

d)

switch unit panels

22.

any of the conductors extending from the service equipment to various distribution points in a building

a)

feeders

b)

circuits

c)

switches

d)

branches

23.

a space between two terminals or electrodes across which a discharge or electricity may pass

a)

air gap

b)

air space

c)

spark gap

d)

space gap

24.

the main disconnect for the entire electrical system of a building except for the emergency power system

a)

main switch

b)

circuit breaker

c)

panel boards

d)

service switch

25.

a conductor, as a metal ground rod, ground plate or cold water pipe firmly embedded in the earth to establish a ground connection

a)

ground conductor

b)

ground connector

c)

ground electrode

d)

ground wire

26.

horizontal single line diagram of a building's electrical system from the incoming service to the utilization items at the end of the system where the major electrical components are shown as blocks or rectangles

a)

single line diagram

b)

horizontal line diagram

c)

riser diagram

d)

block diagram

27.

CABLE TYPE AC

(a)  

28.

cable type MC

(a)  

29.

cable type MI

(a)  

30.

cable type NM or NMC

(a)  

31.

cable type SNM

(a)  

32.

cable type UF

(a)  

33.

cable type SE or USE

(a)  

34.

cable type FC

(a)  

35.

cable type FCC

(a)  

36.

cable type MV

(a)  

37.

HVAC

(a)  

38.

circular raceways used to enclose wire and cables

a)

pvc

b)

conduits

c)

receptacles

d)

casings

39.

RSC

(a)  

40.

IMC

(a)