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1
Q

The proper treatment for a person who has received a severe electric shock but is still breathing is to

A) administer an opiate to relive anxiety
B) keep the victim walking or moving about, so that the victim does not lose consciousness
C) apply artificial respiration to assist the victim in breathing
D) keep the victim lying down until competent help is available

A

D) keep the victim lying down until competent help is available

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2
Q

Two-wire control using, for example, a thermostat is known as

A) no-voltage release
B) low-voltage release
C) under-voltage release
D) all of the above

A

D) all of the above

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3
Q

Bringing a motor to a quick stop by phase reversal is called

A) dynamic braking
B) plugging
C) electro-mechanical braking
D) mechanical interlocking

A

B) plugging

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4
Q

With most general-purpose motors, the motor nameplate has an extra load carrying ability or multiplier known as the motors

A) breakdown torque
B) maximum HP rating
C) service factor
D) locked rotor current

A

C) service factor

28-010

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5
Q

The principal difference between a contractor and a starter is

A) contractor is larger
B) contractor is not rated in HP
C) starter is manually controlled
D) starter has overload relays

A

D) starter has overload relays

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6
Q

Which of the following types of diagrams includes all of the devices in the system and show their physical relationship to eachother

A) line diagram
B) wiring diagram
C) schematic diagram
D) riser diagram

A

B) wiring diagram

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7
Q

What piece of equipment shall be used to prevent the inadvertent interconnection of normal standby sources of supply

A) transfer switch
B) Molded case circuit breaker
C) line rated contractor
D) lockable knife switch

A

A) transfer switch

46-206(1)

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8
Q

What minimum depth is required when direct burying catholic protection cables

A) 750mm
B) 450mm
C) 200mm
D) 600mm

A

B) 450mm

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9
Q

A PN junction is a device known as a

A) diode
B) diac
C) triac
D) half-wave rectifier

A

A) diode

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10
Q

A rectifier is a device that changes

A) AC to DC
B) DC to AC
C) frequency
D) voltage

A

A) AC to DC

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11
Q

A half-wave rectifier produces a

A) smooth DC
B) pulsating DC
C) square-wave AC
D) Full-wave AC

A

B) pulsating DC

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12
Q

Which of the following best refers to the point in a wiring system that draws current

A) an outlet
B) a switch
C) a pull box
D) a junction

A

A) an outlet

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13
Q

The maximum allowable fusing on a DC motor

A) 250% FLC
B) 300% FLC
C) 125% FLC
D) 150% FLC

A

D) 150% FLC

28-200(3A) T29

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14
Q

A thermistor is a type of resistor whose resistance is dependant on

A) voltage
B) temperature
C) power
D) frequency

A

B) temperature

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15
Q

How does an open-on-rise thermostat operate

A) temp rises, contact open, turns on heat
B) temp rise, contact open, turns off heat
C) temp rise, contact open, turns on cool
D) temp rises, contact open, turns off cool

A

B) temp rises, contact open, turns off heat

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16
Q

What is generated when a thermocouple is heated

A) voltage
B) temperature
C) power
D) frequency

A

A) voltage

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17
Q

An aluminum conduit run is 300 meters in length. Temperature change is from -32 to +30 Celsius. The total expansion in length due to temperature change will be

A) 20mm
B) 40mm
C) 69mm
D) 94mm

A

B) 40 mm

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18
Q

Prior to opening the switch on the primary of a high voltage distribution transformer it is good practice to

A) unload the secondary
B) ground the secondary
C) open the primary fuses
D) disconnect the ground feeders

A

A) unload the secondary

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19
Q

The type of motor used by the small
Motor-driven tool industries is the

A) repulsion
B) synchronous motor
C) compound motor
D) series motor

A

D) series motor

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20
Q

In universal motors, the armature and field coils are connected in

A) multiple
B) shunt
C) series
D) parallel

A

C) series

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21
Q

The minimum single size-conductor aluminum-sheathed or mineral-insulated cable allowed in a service is

A) No. 10 awg
B) No. 8 awg
C) No. 4 awg
D) No. 3 awg

A

D) No. 3 awg

6-304(1b)

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22
Q

For what purpose is a heat anticipator on a thermostat

A) anticipate temperature drop
B) adjust voltage differential
C) anticipate temperature rise
D) adjust for faulty thermostat

A

C) anticipate for temperature rise

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23
Q

What is the minimum size ground conductor from a high voltage gradient control mat to the ground electrode

A) No. 6 awg
B) No. 1/0 awg
C) No. 2/0 awg
D) No. 3/0 awg

A

C) No. 2/0 awg

36-310(2)

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24
Q

Polarity should be tested before

A) energizing a transformer
B) checking ratio
C) connecting coils in series or parallel
D) connecting the load to the secondary

A

C) connecting coils in series of parallel

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25
Q

How does a triac dim an incandescent lamp

A) changing circuit impedance
B) changing voltage across the lamp
C) transforming the voltage
D) blocking negative pulses

A

B) changing voltage across the lamp

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26
Q

When rigid metal conduit is installed in a storage battery room what length of conductor should be free from the raceway where connections are made to the cell terminals

A) 150mm
B) 300mm
C) 600mm
D) 900mm

A

B) 300mm

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27
Q

An auto transformer may be used as

A) a power transformer
B) a potential transformer
C) a current transformer
D) a motor starter compensator

A

D) a motor starter compensator

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28
Q

The correct action to take of a motor trips out the thermal overloads is to

A) allow for a cooling period then reset overloads
B) reset overload immediately
C) install new overloads
D) change the fuses

A

A) allow for a cooling period then reset the overloads

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29
Q

What minimum type enclosure is required when the enclosure is exposed to ice with all mechanisms remaining operable

A) 3
B) 3X
C) 3S
D) 3R

A

C) 3S

2-400(1) T65

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30
Q

What size conduit is required for service conductors, including ground, with a -00 amp main breaker for a mobile home

A) 27mm
B) 35mm
C) 41mm
D) 53mm

A

C) 41mm

70-104(3) T48

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31
Q

An AC motor is required to have good variable speed qualities. Which of the following should be used

A) wound rotor
B) synchronous
C) shunt
D) split phase induction

A

A) wound rotor

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32
Q

A three phase wye connected general winding has a phase current rating of 10 amperes. The line current rating is

A) 10A
B) 30A
C) 17.3A
D) 15A

A

A) 10A

Line amps > phase amps

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33
Q

The voltage rating of an AC wye connected three phase generator is 208 volts. The voltage rating of each winding is

A) 69.3 V
B) 120 V
C) 208 V
D) 360 V

A

B) 120V

34
Q

A Megger is used for measuring (typical application)

A) low resistance
B) insulation resistance
C) high voltage
D) low current

A

B) insulation resistance

35
Q

The entire floor area of an aircraft hanger shall be considered a zone 2 location up to what level above the floor

A) 50mm
B) 150mm
C) 450mm
D) 1.5m

A

C) 450mm

20-402(2)

36
Q

Conductors for a Class 2 wiring shall not be smaller than what size when laid in raceways

A) No. 16 awg
B) No. 18 awg
C) No. 19 awg
D) No. 22 awg

A

C) No. 18 awg

16-210(4b)

37
Q

A wye connected AC generator is rated at 208 volts and 25 amperes. The phase winding rating is

A) 125 V - 25 A
B) 120 V - 25 A
C) 120 V - 14.4 A
D) 208 V - 14.4 A

A

B) 120 V - 25 A

38
Q

The primary purpose of a 15KV stress cone is to

A) relieve mechanical stress
B) relieve electrical stress
C) prevent moisture
D) prevent arching

A

B) relieve electrical stress

39
Q

What is required to calculate a squirrel-cage induction motors maximum overload rating

A) duty rating and service factor
B) duty rating and FLA
C) horsepower and FLA
D) FLA and service factor

A

D) FLA and service factor

40
Q

A thermal relay like a thermistor are typically used in which type of switch

A) dimmer switch
B) isolating switch
C) motor circuit switch
D) disconnect switch

A

C) motor circuit switch

41
Q

What is the basic load in watts per square meter for a theatre

A) 25
B) 20
C) 50
D) 30

A

D) 30

8-210(a) T14

42
Q

What is the proper angle for setting up a portable extension ladder

A) one foot out for every one foot up
B) one foot out for every two feet up
C) one foot out for every three feet up
D) one foot out for every four feet up

A

D) one foot out for every four feet up

43
Q

A two-conductor. Ranch circuit carrying 125 amps, at 240 volts, using #1 RW90 copper conductors is being installed in PVC conduit. How far can the conduit be run from the distribution point

A) 50 m
B) 54 m
C) 57 m
D) 62 m

A

C) 57 m

TD3

44
Q

What type of fuse is used for cycling load such as a clothes dryer in a dwelling unit

A) type ‘HRC’
B) type ‘P’
C) type ‘C’
D) type ‘J’

A

B) type ‘P’

14-610 & 14-200(2)

45
Q

An electrician is making an insulation-resistance test of a large motor with a megohmmeter. The response of the pointer is a downward dip followed by a gradual climb to a steady value. This indicates

A) good insulation
B) dirty insulation
C) wet insulation
D) burned insulation

A

A) good insulation

46
Q

A split-phase resistance-start motor and a capacitor-start will have

A) the same starting torque and different running torque
B) the same starting torque and the same running torque
C) different starting torque and different running torque
D) different starting torque and the same running torque

A

D) different starting torque and the same running torque

47
Q

The centrifugal switch of a single phase capacitor-start induction- run motor is connected

A) in series with the run winding
B) in parallel with the capacitor
C) in series with the start winding
D) in series with the motor leads

A

C) in series with the start winding

48
Q

What type of DC motor is used where extremely high torque is required and speed is not important

A) series
B) repulsion
C) compound
D) shunt

A

A) series

49
Q

The proper extinguisher to use on a class ‘C’ fire (one involving live electrical equipment) is

A) carbon tetrachloride
B) foam
C) ammonia phosphate
D) CO2

A

D) CO2

50
Q

A dual voltage e phase squirrel cage motor is started with wye-delta starting, how many motor winding leads are required at the motors terminal box

A) 3
B) 6
C) 9
D) 12

A

D) 12

51
Q

How many terminals are there on a dual terminal supervised photoelectronic smoke detector

A) 2
B) 3
C) 4
D) 6

A

C) 4

32-106

52
Q

In motor installations, which of the following type of fuse is the most advantageous to use

A) standard plug
B) plug-in fuse
C) single-element
D) dual-element

A

D) dual-element

53
Q

Three wire motor control provides for one of the following

A) No-voltage release
B) low-voltage release
C) low-voltage protection
D) all of the above

A

D) all of the above

54
Q

A separate disconnecting means shall be within _____m of a rectifier unit of a catholic protection system

A) 3
B) 6
C) 9
D) 15

A

D) 15

80-010(1)

55
Q

A single family dwelling has a 14KW, 120/240V, 1 phase electric range. What will be the calculated main service watt demand for this range

A) 6.8 KW
B) 8.8 KW
C) 12 KW
D) 14 KW

A

A) 6.8 KW

8-200(1a)(iv)

56
Q

Heating cable sets or space heating systems shall be installed no closer than how many millimeters from receptacles

A) 50mm
B) 100mm
C) 150mm
D) 200mm

A

D) 200mm

62-200(2) T67

57
Q

What is the effect of a broken connection between the ballast coil and the lamp base of type T5 fluorescent unit

A) current will be excessive and destroy the lamp
B) the filaments will glow but the tube won’t light
C) the tube will flash on and off
D) the lamp won’t light at all

A

D) the lamp won’t light at all

58
Q

The most commonly used voltage in a nurse call system is

A) 12 volts
B) 25 volts
C) 70 volts
D) 120 volts

A

B) 25 volts

59
Q

Proper maintenance of control equipment is provided for by a program of

A) daily inspections of all components
B) complete inspection when a component fails
C) scheduled periodic inspections
D) annual inspections of all components

A

C) scheduled periodic inspections

60
Q

A remote thermostat on a 30 volts system for controlling heat is considered as

A) extra low voltage circuit
B) a low voltage control circuit
C) a remote control circuit
D) a dc voltage control circuit

A

A) extra low voltage circuit

Section 0

61
Q

What is maximum percentage rating of the primary overcurrent breaker in a 4160 volt power transformer with a secondary breaker rated at 8.5% impedance

A) 200%
B) 250%
C) 400%
D) 600%

A

C) 400%

26-250(4) T50

62
Q

The flexible cord used to wire a motor with proper cable glands in the working areas of a grain feed mill would be

A) SO cable
B) SJOW cable
C) SJO cable
D) SJT cable

A

A) SO cable
Zone 21 location
18-202(4b) T11
New sub (extra hard usage)

63
Q 
Calculate the minimum size of NMD-90 copper cable and circuit breaker required to install and protect a 1.8KW, 120v rated dishwasher in a residential dwelling on a 120/240v single phase system? Max conductor termination is 75 degrees 
 A) #14 AWG, 15 A single-pole
B) #12 AWG, 15A single-pole
C) #14 AWG, 20 A single pole 
D) #12 AWG, 20 A single pole
A

A) #14 AWG, 15A single pole

64
Q

A diode offers low resistance to current on

A) both directions
B) one direction only
C) only in reverse bias
D) low voltage applications

A

B) one direction only

65
Q

A single diode is used to rectify AC voltage. This type of circuit is known as

A) full-wave rectification
B) half-wave rectification
C) bridge rectification
D) proper rectification

A

B) half-wave rectification

66
Q

The range of a voltmeter may be extended by the use of a

A) shunt in series
B) shunt in parallel
C) multiplier in series
D) multiplier in parallel

A

C) multiplier in series

67
Q

When may an ohmmeter be used in an energized circuit

A) when the potential is less than 125v
B) only when an instrument transformer is used
C) only when one side is grounded
D) never

A

D) never

68
Q

A synchronous motor must be stated

A) with full DC in the field circuit
B) with weak DC in the field circuit
C) as an induction motor
D) when the power factor is low

A

C) as an induction motor

69
Q

The power factor of a synchronous motor can be varied by changing the

A) brush polarity
B) phase rotation
C) speed of rotation
D) field excitation

A

D) field excitation

70
Q

A synchronous motor running on three-phase line voltage, with a separately excited DC field applied, serves the same function of power factor correction as

A) a bank of resistors
B) a bank of capacitors
C) an induction motor
D) a wound-rotor motor

A

B) a bank of capacitors

71
Q

The most accurate method of testing insulation resistance used a/an

A) megohmmeter
B) growler
C) ohmmeter
D) wattmeter

A

A) megohmmeter

72
Q

Short-circuited coils in a stator are located efficiently by the use of a/an

A) megohmmeter
B) growler
C) ohmmeter
D) multi-meter

A

B) growler

73
Q

Every metallic cabinet installed in a category 1 location shall be mounted to give at least any clearance from the supporting surface

A) 12mm
B) 25mm
C) 30mm
D) 6mm

A

A) 12mm

22-302(4d)

74
Q

Class 1 power circuits are restricted to what maximum power rating when being supplied by a transformer

A) 100VA
B) 1 KVA
C) 10 KVA
D) no limit

A

B) 1KVA
16-004
16-100(1)

75
Q

Which of the following devices should not be used in series

A) fuse
B) switch
C) ammeter
D) voltmeter

A

D) voltmeter

76
Q

The maximum circuit current capacity for FCC systems is

A) 12A
B) 15A
C) 20A
D) 30A

A

D) 30A

12-806(h)

77
Q

The maximum temperature at the point of connection between a branch circuit tap conductor and heating device set exceeds 60 degrees celcius. What minimum length of tap conductor is required?

A 300mm
B) 450mm
C) 500mm
D) 750mm

A

C) 500mm

78
Q

The operating relationship of the blower fan in gas furnace during normal heating operation is

A) the fan comes on first and shuts off last
B) the fan comes on first and shuts off first
C) the fan runs continuously
D) the fan comes on last and shuts off last

A

D) the fan comes on last and shuts off last

79
Q

A service panel is to be used in single dwelling. The minimum number of circuits in the pane is

A) 8
B) 12
C) 16
D) 24

A

C) 16

8-108(1a)

80
Q

What is meant by “the inverse time characteristics curve” of an overload in a breaker

A) a short circuit causes an instantaneous trip of the breaker
B) a low value of overload will be tolerated much longer than a short circuit
C) a high value of overload will be tolerated for a longer period of time
D) no overload will be tolerated

A

B) a low value of overload will be tolerated much longer than a short circuit

81
Q

NS90 cable is used to supply power to a service. The maximum distance from the service head that the NS90 cable be attached is

A) 150mm below the service head
B) 300mm below the service head
C) 600mm below the service head
D) 750mm below the service head

A

B) 300mm below the service head

6-116(bi)

82
Q

What is the maximum allowable temperature rating of CMR type cable

A) 60 degrees
B) 75 degrees
C) 90 degrees
D) 110 degrees

A

A) 60 degrees

T19

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