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Electric > Long Electric Test Created 10/30 > Flashcards

Long Electric Test Created 10/30 Flashcards

1
Q

What does NEMA stand for?

A

National Electrical Manufacturer association

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2
Q

What are the wearable parts of a DC motor?

A

Brushes

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3
Q

What does NEC stand for?

A

National Electric code

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4
Q

The abbreviation FLA on a motor stands for?

A

Full load amps

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5
Q

The low voltage side of the transformer is the

A

Secondary side

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6
Q

A DC motor acts as what with no power supply?

A

A generator

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7
Q

Changing any ____of the 3 leads of a 480 VAC motor will change the motors rotation.

A

2

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8
Q

X2 should always be ___ on a transformer

A

Neutral

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9
Q

Black and yellow stripe box at cliffs indicates?

A

250 VDC crane

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10
Q

What does NC stand for?

A

Normally closed

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11
Q

The ______ _______ gives you information on a motor.

A

Data/name plate

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12
Q

List 4 things that make up an electrical circuit.

A

Source voltage
Wire
Switches
Load

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13
Q

The size of a motor starter is determined by the _____ of a motor

A

Horsepower

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14
Q

Name four types of motors

A

Single phase
3 phase
DC
AC

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15
Q

________ _______ is the initial surge of power going out to a motor until it comes up to speed.

A

Inrush current

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16
Q

When wiring up a float switch or a sump pump the float switch should be wired in the ___ ___ position so the motor will not run when the water is low in the sump pit.

A

Normally open

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17
Q

The omega symbol stand for

A

OHMS

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18
Q

A ______ _______ is a device that provides an adjustable time period to preform a function and a circuit.

A

Timing relay

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19
Q

A _____ wire can be used to temporarily fix an electrical issue.

A

Jumper

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20
Q

Receptacles that are going to be protected should be wired on the ____ side of the GFCI:

A

Load

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21
Q

Taping method used to protect the wire tag

A

Back taping

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22
Q

14 gauge wire is rated for how many amps?

A

20 AMPS

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23
Q

12 gauge wire is rated for how many AMPS?

A

25 AMPS

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24
Q

How many thermal overloads are needed to protect a three phase motor?

A

3

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25
Q

And E-stop is a ______ type of button

A

Maintain

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26
Q

A start button is a _____ type button

A

Momentary

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27
Q

When using a megger to check a motor a good reading phase to phase:

A

0.0

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28
Q

What PPE is to be worn when testing a live power source?

A

ARC flash

29
Q

Motors under 20 horsepower are wired in a ____ configuration

A

Y

30
Q

Motors above 20 horsepower are wired in _____ configuration

A

Delta

31
Q

Pushing a fish tape towards a live power source, what precautions should you take?

A

Cardboard or pice of wood

32
Q

When checking a circuit with the power off to the circuit, your meeter should be set on ______ to check the circuit.

A

OHMS

33
Q

How is the capacitor discharged in a motor?

A

Shorted

34
Q

Trouble shooting a circuit hot is best to check for

A

Source voltage

35
Q

Multiple start buttons in a circuit should be wired in _____?

A

Parallel

36
Q

When using a megger a good reading, phase to ground on a motor is?

A

550 M OHMS

37
Q

How many AMPS does a 1,500 watt 120 VAC heater draw?

A

12.5 AMPS
I= P/E

38
Q

10 gauge is rated for how many AMPS?

A

35 AMPS

39
Q

In a circuit using 10 gauge wire, a ____ amp breaker is used (to protect it)

A

30 amp

40
Q

Colored wire in a motor starter bucket normally indicates ______ voltage

A

Control

41
Q

What are the wires called that run between 3 way switches so that either switch can turn the lights on or off?

A

Travelers

42
Q

When one phase of 480 VAC 3 phase is lost or open in a power circuit and the motor is not turning and humming, it is _______

A

Single phase

43
Q

What phase is a control transformer?

A

Single phase

44
Q

A lighting circuit gets placed on what amp breaker

A

15 AMP

45
Q

How many receptacles can be on a 20 amp circuit?

A

10

46
Q

IEC stand for?

A

International Electrotechnical commission

47
Q

What voltage is supplied to a control transformer?

A

480 VAC

48
Q

What wire should never be hooked to a switch?

A

Neutral

49
Q

What type of wire is used in home application

A

Romex

50
Q

A _______ ________ is used to make a motor run.

A

Motor starter

51
Q

Voltage has to be supplied to the ______ of a magnetic starter so that the moveable main tips close to allow power to be supplied to the motor.

A

Coil

52
Q

_______ are used to keep a motor running without holding the start button

A

Seal in tips

53
Q

After changing a motor you should always ________ _________ to check for proper motor rotation.

A

Bump test

54
Q

When running a light circuit you should use what gauge wire?

A

14 AWG

55
Q

A stop button should be ____ ______ at its resting state.

A

Normally closed

56
Q

The ________ is the high voltage side of a single phase step down transformer

A

Primary side

57
Q

A _____ ______is a is used to protect the control transformer

A

Control fuse

58
Q

A _______ takes 480 VAC down to 120 VAC

A

Transformer

59
Q

The _______ ________ should be hooked up to a gold screw on a receptacle

A

Hot wire

60
Q

________ are used in a motor circuit to protect the motor from high current

A

Overloads

61
Q

A _______ ________is a central location that distributes electric through the home

A

Load center

62
Q

AC stands for

A

Alternating current

63
Q

A black box indicates what at cliffs steel

A

250 VDC

64
Q

What amp breaker is used on a receptacle circuit?

A

20 Amp

65
Q

A green or bare copper wire should always be used as a?

A

Ground

66
Q

HP is the abbreviation for what?

A

Horse power

67
Q

What does RPM stand for?

A

Revolutions per minute

68
Q

What gauge wire is used to supply power for a dryer or range?

A

10 AWG

Electric (6 decks)

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