Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CE Exam MARCH CYCLE > Power Generation > Flashcards

Power Generation Flashcards

1
Q

In accordance with the NEC what is required for emergency and standby electrical systems?

A

Kept completely separated from other electrical systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following must comply with electrical safety standards and codes?

Cost
Manpower
Design

A

Design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Generators are not permitted to be closer than how many feet form the load?

A

25 feet (7.6 meters)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

“Ratio of average to peak power” best describes which factor?

A

Annual load

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Historically, all general purpose lighting power used in overseas United States bases in what voltage?

A

120

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

AC motors above 5 horsepower operate satisfactorily in what voltage systems?

A

208 or 240

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The combination of power and light circuits will be accomplished by the use of which of the following voltage systems?

A

208 to 240

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which of the following is not a unit of measurement associated with electrical loads?

Inductance
Kilowatts
Amperes
Kilovoltamperes

A

Inductance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The ratio between the actual maximum demand and the connected load is called what?

A

Demand factor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which NEC article provides the requirements for determine demand factors?

A

Article 220

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the first step when deleting a suitable site for a generator?

A

Study plot plan of area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If a level dry area can not be found, what should be done?

A

Place generator on planks or logs for suitable base foundation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

If exhaust piping installation required loops in the system, what must be done?

A

Install drain cock at lowest point of the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Exhaust piping insulation located inside A structure must be capable to withstand what maximum amount of temperature?

A

1500 F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the minimum AWG size utilized with the ground terminal wire?

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the primary reason for the voltage changeover board?

A

Permits reconnection of generators phase windings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the output of the voltage changeover board of connected in series?

A

240/416

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the prefers material used for ground in an underground metallic water piping systems?

A

A metal driven rod

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the minimum diameter of a ground rod if manufactured out of piping?

A

3/4 inch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the minimum depth that a ground rod must be driven into the ground?

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The ground lead utilized with the ground rod is manufactured out of what type of material?

A

Copper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The resistance of the soil used to implant a ground rod is dependent upon which of the following factors?

Chemical composition of soil

Depth of ground rod

Moisture content

Acidity of soil

A

Moisture content

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is one of the best means of reducing the resistance to ground?

A

Use of additional rods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Load cables are connected in which order? ;

A

L0, L3, L2, and L1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where is the voltage changeover board located?

A

Directly above the load thermal board

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

When multiple rod, pipe, and or plate electrodes are installed, they are required to be no less than how many feet?

A

6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

If the conductor is too small to carry the current demanded by the load what kind of fault might occur?

A

Open circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

The voltage drop should not exceed what percentage for lighting loads?

A

3 percent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

When selecting a feeder conductor capable, what carrying percentage of rated generator amperes should be selected to eliminate voltage drop problems?

A

150 percent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Wire placed underground should be manufactured out of what type of material?

A

Direct burial, rubber jacketed cable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

How long is a trench dug for cable laying in a traffic area?

A

24 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What is your primary purpose as a generator watch?

A

Produce power.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Which of the following is not a characteristic built into navel electrical installations?

Cost effectiveness
Simplicity
Ruggedness
Flexibility

A

Cost effectiveness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is done first prior to starting the generator?

A

Conduct the prestart checklist in sequence.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Before starting the set the first time, what needs to be verified complete?

A

Preventive maintenance checks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

When are log readings conducted on a running generator?

A

Every hour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Which of the following is one of the checks conducted?

Coolant level when generator running

Vibration assessment

Hydraulic pressures

Exhaust gas readings

A

Coolant level when generator running

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What is the significance of hearing unusual sounds emitting from generator?

A

Indication of malfunction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

If the load of a generator becomes to large to handle, what actions should be taken?

A

Add another generator in parallel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Before two generators can be paralleled, which of the following conditions must be met?

Both frequencies must be within 10 percent

Both voltages must be within 25 volts

Both power factors need to be matched

Both terminal voltages have to be equal

A

Both terminal voltages have to be equal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

What are two types of governor operations?

A

Isochronous and speed droop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

When a second machine is utilized, what is the name of this machine?

A

Slave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

When paralleling in a droop mode, the governor of one set must be in what position?

A

Isochronous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

What is indicated if the if the synchronizing lights blink on and off simultaneously?

A

Voltages sequence of two machines are in phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

What prevents the operator from paralleling the generators if all conditions are not met?

A

Permissive paralleling relay

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

All 5kw through 750kw generator sets are equipped with what types of batteries?

A

Dry charged, less the electrolyte

47
Q

The 60kw generator is equipped with how many batteries?

A

2

48
Q

The electrolyte placed in a cell should be between which of the following temperature ranges?

A

60 F to 95 F

49
Q

How long after electrolyte is added does the battery need to cool down?

A

1 hour

50
Q

What type of charge is defined as restoration of a the battery to its charges condition during cycle of operation?

A

Normal

51
Q

What type of charge is defined as a charge to remove sulfate from the plates?

A

Equalizing

52
Q

What type of charge is defined as the commenced as a higher rate and may be detrimental to the battery?

A

Fast charge

53
Q

At what electrolyte temperature will you stop the charge to Allow the battery to cool down?

A

110 F

54
Q

Never allow the electrolyte temperature to get past what temperature reading?

A

115 F

55
Q

What instrument is use to measure the active ingredients in the electrolyte?

A

Hydrometer

56
Q

What is defined as the ratio of the weight of the electrolyte to the weight of the same volume of Pure water?

A

Specific gravity

57
Q

What is disposition of the sample taken with electrolyte?

A

Return to battery cell

58
Q

Which fluid requires a level check prior to starting a generator set?

A

Crankcase oil

59
Q

Coolant level needs to be within how many inches of the top of the radiator?

A

2 inches

60
Q

The day tank permits how many minutes of engine operation?

A

5 minutes

61
Q

To what piece of equipment are the muffler and the exhaust pipe connected?

A

Turbocharger exhaust elbow

62
Q

What is the primary purpose of the muffler?

A

Reduces engine exhaust noise

63
Q

What device is utilized to compare the phase sequence of a three phase generator?

A

Phase sequence indicator

64
Q

Panel board are accessible through which side of the enclosure?

A

Front

65
Q

Which of the following is not a category of maintenance associated with power plant maintenance?

A

Manufacture

66
Q

What are two types of organizational maintenance?

A

Operator and preventive

67
Q

Whalen using compressed air, what pressure should not be exceeded?

A

30 psig

68
Q

What’s does the TQG-B model generator have that is not installed on the TGQ-A model?

A

Digital control system

69
Q

When Conducting inspection of the TGQ-B generator, where does the inspection start?

A

Rear

70
Q

When is the operator made aware when there is a problem with the air cleaner assembly?

A

Restriction indicator pops up

71
Q

What receptacle is used to connect machines of the same size and model number?

A

Paralleling

72
Q

What voltage is associated with the convenience receptacle?

A

120VAC

73
Q

What is the purpose if the dead crank switch?

A

Allow engine turn over without starting

74
Q

What piece of equipment regulates fuel amounts that enter the engine to maintain speed?

A

Actuater

75
Q

What is used to monitor engine speed on the governor control unit ?

A

Magnetic pickup

76
Q

What voltage batteries are associated with the TQG-B model generator?

A

12 VDC

77
Q

What is the NATO slave receptacle used for?

A

Jump starting units from any 24VDC starting systems

78
Q

The reconnection board allows reconfiguration from 120 volts to what voltage low wye setup?

A

208 volts

79
Q

Where does the exhaust exit TGQ-B generator?

A

Top

80
Q

Which of the following pieces of equipment is not driven by the fan belt?

A

Fuel pump

81
Q

Over current protection of the alternator is provided by a inline fuse rated at what amperage?

A

30 amps

82
Q

How many checklist are associated with the TQG-B generator?

A

4

83
Q

What is the status of the generator if one of he enclosure doors does not shut?

A

Deadlined

84
Q

What is amperage rating of the DC power control fuse?

A

10 amps

85
Q

What is the position of the frequency selection switch if utilizing NATO power?

A

50 hertz

86
Q

When starting the generator how long is the engine control switch I the start position?

A

15 seconds

87
Q

How long is the generator allowed to warm up prior to connect on a load?

A

For 5 minutes

88
Q

The noise levels of generators sized from 5KW to 200KW ranged from how many decibels at 25 ft?

A

77 dBA to 93 dBA

89
Q

Single hearing protection is needed for noise less than how many dBA?

A

84

90
Q

Double hearing protection is needed for noise levels greater than how many dBa?

A

104

91
Q

Generators must not be closer than how many feet to a load because of noise, fire hazard, and air circulation?

A

25 feet

92
Q

A generator set should not be operated while inclined more than how many degrees from level?

A

15 degrees

93
Q

The annual load factor of a well operated active base should be 50 percent or more with a power factor of what percent or higher?

A

80 percent

94
Q

Practically all general purpose lighting in the United States and at United States overseas bases is how many Volts?

A

120

95
Q

What is the sum of the rated capacities of all electrical appliances, lamps, motors, and so on, connects to the wiring of the system?

A

Connected load

96
Q

What is the ratio between the actual maximum demand and the connects load called?

A

Demand factor

97
Q

Shelters should have additional Windows or doors installed in localities where the summer temperatures exceed what temperature at any time?

A

80F

98
Q

Exhaust piping insides building has to be covered with insulation capable of with standing a temperature of how many degrees?

A

1500F

99
Q

A ground rod must have a minimum diameter of 5/8 inches of solid or what size if it is pipe?

A

3/4 inches

100
Q

A ground plate must have a minimum area of how many square feet and, where practical, be embedded below the permanent moisture level?

A

2

101
Q

All electrical generators operating at how many volts or less must be solidly grounded?

A

600 volts

102
Q

A ground rod has to have a minimum diameter of 5/8 inch if solid and 3/4 if pipe, and it has to be drive to a minimum of how many feet?

A

8 feet

103
Q

Watches should be avoided that exceed how many hours unless a emergency conditions dictate their use?

A

8 hours

104
Q

What is a complete Daily record of he operating hours and conditions of a generator set?

A

Station log

105
Q

The engine on the generator should not be cranked in excess of how many seconds at a time?

A

15 seconds

106
Q

How much time should the starter on generator sets have to cool between cranking?

A

3 mins

107
Q

Electrolytes must never exceed what temperature when being placed in dry cells?

A

90 F

108
Q

What breaks or interrupts the circuit anytime there is a short circuit or overload condition in the old cables?

A

Circuit breaker

109
Q

What are three major categories o Maintenance?

A

Depot, intermediate, and organizational

110
Q

What type of maintenance includes the hourly, Daily, and weekly maintenance requirements recommended in the manufactures literature?

A

Operator

111
Q

What measures the oil level in the engine drain pan?

A

Oil dipstick

112
Q

The generator must member within hoe many feet of any paralleled generator set and within how many feet of any auxiliary fuel supply?

A

25 feet for both

113
Q

The combined resistance of two rods properly spaced and connected in parallel should increase the resistance compares to one rod?

A

60 percent

CE Exam MARCH CYCLE (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions