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1
Q

Rubber Glove Class 0 (color and max use voltage)

A

Red / 1,000 volts

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2
Q

Rubber Glove Class 1 (color and max use voltage)

A

White / 7,500 volts

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3
Q

Rubber Glove Class 2 (color and max use voltage)

A

Yellow / 17,000 volts

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4
Q

Rubber Glove Class 3 (color and max use voltage)

A

Green / 26,500 volts

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5
Q

Rubber Glove Class 4 (color and max use voltage)

A

Orange / 36,000 volts

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6
Q

MAD distance .05 to 1kV
phase to ground
phase to phase

A

avoid contact

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7
Q

MAD distance up to 15kV
phase to ground
phase to phase

A

phase to ground 2’ 1”

phase to phase 2’ 2”

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8
Q

MAD distance up to 36kV
phase to ground
phase to phase

A

phase to ground 2’ 4”

phase to phase 2’ 7”

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9
Q

MAD distance up to 46kV
phase to ground
phase to phase

A

phase to ground 2’ 7”

phase to phase 2’ 10”

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10
Q

MAD distance up to 72.5kV
phase to ground
phase to phase

A

phase to ground 3’

phase to phase 3’ 6”

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11
Q

how often rubber gloves electrically tested

A

every 6 months

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12
Q

how often rubber sleeves electrically tested

A

every 12 months

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13
Q

how many volts have a class “E” hard hat passed for

A

20,000 volts

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14
Q

minimum continuous ventilation in an enclosed space

A

at least 200 cubic feet per minute per occupant

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15
Q

define instantaneous value of AC voltage

A

the actual value of the voltage and current at each instant in the cycle. this value is not measured with an ordinary meter.

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16
Q

define peak value of AC voltage

A

is the highest instantaneous value that the voltage and current reach in both directions during the cycle.

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17
Q

define average value of AC voltage

A

is obtained by calculating the average of all the instantaneous values in half a cycle.

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18
Q

define effective value of AC voltage

A

is the value of a DC and voltage that would have the same heating effect.

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19
Q

active power is also referred to as?

A

effective power, true power, or real power

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20
Q

apparent power is?

A

the total power supplied be a circuit. apparent power is a combination of active power and reactive power.

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21
Q

reactive power is?

A

the element in the apparent power formula that does not do any work.

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22
Q

power factor is?

A

the ratio of active power to apparent power

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23
Q

which side of a wood pole is its “face”

A

the concave or inside of the sweep or bow

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24
Q

which side of a wood pole is its “back”

A

the convex side

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25
Q

where does framing and equipment go a wood pole?

A

the face of the pole

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26
Q

whats blue glad hands used for

A

service lines

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27
Q

whats red glad hands used for

A

emergency lines

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28
Q

minimum tie down distance for trailer loads

A

10 feet

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29
Q

2 copper MAC ampacity

A

230 amps

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30
Q

1/0 copper MAC ampacity

A

310 amps

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31
Q

2/0 copper MAC ampacity

A

355 amps

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32
Q

4/0 copper MAC ampacity

A

480 amps

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33
Q

carbon in oil of transformer is an indication of what

A

arching

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34
Q

formula for conductor weight on a pole

A

weight = span a + span b divided by 2 x weight per foot x safety factor.
the safety factor is 2 for spans 250 feet or less
the safety factor is 1.5 for spans greater than 250 feet

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35
Q

how many volts per foot is hot sticks tested to

A

100,000 volts

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36
Q

what is the Working Load Limit WLL based on

A

breaking strength of the equipment divided by a safety factor

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37
Q

safe working load limit for 1/4” manila rope

A

120lbs

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38
Q

when was PCB’s banned by the EPA

A

1979

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39
Q

what should you do to Aluminum bolts and can they be re torqued

A

lube, no

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40
Q

spoil piles must be kept at least _ feet from the edge of a trench. anything within that must be added to ___ _____ __ ___ ______.

A

2 feet, the depth of the trench

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41
Q

you can rubber glove a maximum of ___ volts phase to phase directly off the pole without an insulated platform

A

5KV

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42
Q

a magnet is normally made out of

A

iron

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43
Q

a volt meter is connected in series/parallel with a circuit

A

parallel

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44
Q

a watt meter is connected in series/parallel with a circuit

A

series

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45
Q

an ammeter is connected in series/parallel with a circuit

A

series

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46
Q

a mill measures how much of an inch?

A

one/one thousandth of an inch .001

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47
Q

rectifiers do what?

A

change DC to AC

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48
Q 
of these rope materials, which is the strongest
nylon
polypropylene
manila 
sisal
A

nylon

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49
Q

how do you determine the mechanical advantage of a block and tackle

A

count the number of lines in the moving block

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50
Q

bucket trucks operate on what type of hydraulic system?

A

open and closed

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51
Q

digger trucks operate on what type of hydraulic system?

A

open and closed

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52
Q

T/F, it is ok to check the hydraulic fluid of the y-35 hand pump in the field?

A

no false

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53
Q

pole strength is determined by what?

A

strength to resist loads applied 2 ft. from top of pole

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54
Q

what 3 things determine pole depth?

A

height of pole, soil characteristics, weight and pull factors

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55
Q

in step regulator the primary winding is connected in ________ with the line while secondary winding is connected in _________ with the line

A

Parallel, series

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56
Q

the top changer switch in a regulator is _______driven and immersed in _____

A

motor, oil

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57
Q

name 2 factors to take into consideration when sagging conductor

A

temperature, span length, size of conductor

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58
Q

what’s the purpose of armor rod?

A

reinforce conductor and reduce chafing

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59
Q

what is the hazard of a broken series street light circuit?

A

the constant current transformer could be at maximum voltage output

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60
Q

how do you test an old pole to make sure it is safe to climb?

A

visual inspection, sound inspection and a bore inspection (18 inches beneath the ground)

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61
Q

why are the metallic cases of transformers, circuit breakers, regulators, etc, grounded?

A

for the protection of public, workers, and equipment.

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62
Q

how are primary and secondary windings of a transformer coupled?

A

magnetically coupled through mutual induction

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63
Q

adding parallel loads to a circuit will _______ total circuit resistance and ________ the total circuit current

A

decrease, increase

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64
Q

how does an analog meter operate?

A

on the magnetic principal that like poles repel each other

65
Q

what are the two basic types of analog ohmmeters?

A

series and shunt

66
Q

name 2 advantages for 4 wire feeders over 3 wire feeders?

A

cheaper to build, more efficient

67
Q

what is used to prevent a series street light form being completely interrupted by a burnt out lamp?

A

film disc cutout

68
Q

what should always be done before opening a series street light circuit?

A

drop all load and take constant current transformer out of service

69
Q

why must you be careful to adequately ground neutral conductors

A

so fault current dissipates before causing damage to cable or equipment

70
Q

what moves the windings apart on a constant current transformer?

A

magnetic repulsion

71
Q

how do you find the circular mil cross area of wire from the diameter in inches?

A

convert inches to mils (move decimal point 3 places to right) square that number

72
Q

what are substation disconnects used for?

A

isolate equipment , by-pass equipment, transfer loads, and as a grounding device

73
Q

maximum current to be broken by a disconnect switch?

A

50 amps

74
Q

a primary metering installation has a current transformer with a 30:5 ration and a potential transformer with a 7200:120 ratio. to find the KWH consumed you must

A

multiply the meter dial reading by 360.

divide the two ratios and multiply them together

75
Q

wye delta and delta wye banks must be connected with one of two possible angular displacements. these angular displacements are either?

A

30 or 210

76
Q

what are the 4 possible angular displacement with transformer banks?

A

0, 30, 180, 210 degrees

77
Q

how should poles face on a steep grade?

A

face up the grade

78
Q

should poles next to a street crossings face the street?

A

yes

79
Q

what is meant by ranking a pole?

A

moving a pole against the direction of the strain

80
Q

name 3 types of pole roofs

A

slant, gable, flat

81
Q

the side of the pole which has the longest concave sweep between the ground line and the point of the load

A

face or belly

82
Q

gains should be cut into what side of the pole?

A

face

83
Q

how deep should gains be?

A

1/2 and inch

84
Q

an arm that is placed at right angles to a line arm is called a

A

buck arm

85
Q

a class 2 pole is _______ than a class 6 pole

A

larger

86
Q

ground rods should be long enough to reach the _______ moisture level of the soil?

A

permanent

87
Q

what are two types of counterpoise grounding?

A

continuous (parallel)

crowfoot (radial)

88
Q

list two methods to test if a line is dead before installing protective grounds?

A

high voltage volt meter

tic tracer

89
Q

33,000 foot-pounds per minute is equal to one

A

horsepower

90
Q

when properly sharpened, the gaff should not have a spike point, but should function as a

A

chisel

91
Q

what is the definition of power?

A

the rate at which work is done

92
Q

define a guy

A

a brace or cable attached to the pole to strengthen it and keep it in position

93
Q

when you visually inspect rubber gloves what are you looking for?

A

correct voltage (dielectric strength) for application to be used on, ozone cutting, and mechanical damage

94
Q

which winding of a constant current transformer is movable?

A

secondary

95
Q

what must be done to the secondary side of a current transformer before heating up the primary side?

A

shorted, shunted, or hooked up

96
Q

if you don’t short or shunt or hook up the secondary side of a CT before heating up the primary side what will happen?

A

high circulating current will appear

97
Q

the polarity mark of an instrument transformer is normally connected to what side?

A

load side

98
Q

in general what are transformer used for metering installations called?

A

instrument transformers

99
Q

what is the white bushing of an instrument transformer?

A

polarity mark

100
Q

typical rule for capacitor placement

A

2/3 of the distance where the voltage has dropped by 2/3

101
Q

how are distribution and substation capacitors connected?

A

distribution - parallel

substation - series

102
Q

two types of capacitors are

A

switched and fixed

103
Q

volt =

A

amount of potential that will cause 1 coulomb to do 1 joule of work

104
Q

three types of hydraulic reclosers and ratings

A

H- type operates 5 to 50 amps
L - type operates 25 to 280 amps
D - type are voltage specific

105
Q

which rope is considered an insulator?

A

clean dry polypropylene rope

106
Q

two types of transformer construction?

A

core type and shell, shell most common

107
Q

how should a one bushing capacitor be treated

A

it should be treated as a one bushing transformer, due to improper grounding the case can become hot

108
Q

do capacitors have voltage ratings?

A

yes

109
Q

can a 6 CKVA capacitor bank consist of 6 - 100 CKVA capacitors?

A

yes

110
Q

what is a megger?

A

a device used for testing high voltage insulation resistance

111
Q

define air arrestor

A

air gap in series with a resistor

112
Q

what are the three methods used to cool a transformer?

A

oil, air and water

113
Q

what current are constant current transformers usually fixed at?

A

6.6 amps

114
Q

whats an OTDR

A

optical time delay reflectometer, used to test fiber

115
Q

list the three major components of an implosive compression splice for an ACSR conductor

A

steel sleeve inner, aluminum sleeve outer, aluminum sleeve

116
Q

what is a maximeter?

A

a clamp on ammeter having two indicating pointers, one indicates the current at the time of the reading and the other indicates the maximum current since instillation

117
Q

does the load on a capacitor ever change?

A

NO, always draws the same amount of current

118
Q

how does a capacitor improve power factor and voltage?

A

by providing leading current

119
Q

why must gas treated poles be set with extra caution?

A

they can conduct as much as 90% to ground

120
Q

can a line be without load and still carry a current?

A

yes this is called charging current

121
Q

what 3 physical dimensions determine pole classification?

A

length, circ, 6 ft from bottom, and circ. of top

122
Q

T/F , in parallel operation, the transformer with the higher impedance will carry the greater load

A

false, higher impedance = more resistance

123
Q

what 2 main parts is OSHA made of

A

29 CFR (code of federal regulations) 1910 for general industry and 1926 for construction

124
Q

what OSHA article is a performance standard to address employees who are directly involved with power generation, transmission and distribution

A

1910.269 standard

125
Q

what OSHA article covers job briefings?

A

1910.269(c)

126
Q

what OSHA article covers lockout/tagout?

A

1910.269(d)

127
Q

what OSHA article covers enclosed spaces?

A

1910.269(e)

128
Q

what OSHA article covers personal protective equipment?

A

1910.269(g)

129
Q

what OSHA article cover live line tools?

A

1910.269(j)

130
Q

what OSHA article covers working on or near exposed live line parts?

A

1910.269(l)

131
Q

what OSHA article covers minimum approach distances?

A

1910.269(l)(2)

132
Q

what OSHA article covers grounding for the protection of the employees?

A

1910.269(n)

133
Q

how many IBEW vice presidential districts are there?

A

11

134
Q

how many IBEW International

Executive Council Districts

A

8

135
Q

how often does the IBEW international convention meet

A

every 5 years

136
Q

who was the first president of the IBEW?

A

Henry Miller

137
Q

when was the IBEW organized?

A

November 28, 1891

138
Q

AC sine wave represents one cycle and is ___ electrical degreese, with max value of ____ degreese and a opposite max value of _____ degreese

A

360, 90, 270

139
Q

a low power factor due to lagging current condition can be improved by?

A

adding capacitors to the line (ELI) inductive circuit needs capacitance to improve power factor

140
Q

the use of insulating equipment such as _____ ______ can protect line workers handling grounded equipment and conductors from hazardous touch potentials

A

rubber gloves

141
Q

____ _________ adjust voltage plus or minus 10%, they have __ boost and __ buck at _% each step

A

step regulators, 16, 16, 5/8%

142
Q

substation controlling equipment receives the signals sent from the sensing equipment, examples of controlling equipment are an __________ relay that operates a circuit breaker, or a ______ relay that can make a tap changer operate.

A

overcurrent relay, voltage

143
Q

OSHA requires a protection system for employees in a excavation 5’ or more. what are the four choices for protection?

A

benching, sloping, shoring, or shielding

144
Q

some switch gear can be overcurrent protective device, other examples could be: circuit breaker, recloser, or a _____ ___ ___ (sectionalizer could also be a correct anwer)

A

fused cut out

145
Q

rubber hose and blankets max phase to phase rating of 36kV are class __

A

4 orange, (rubber cover up ratings parallel the same ratings as rubber gloves)

146
Q

a conductor with diameter of 1” would convert to how many kc mils?

A

1000 kc mills

147
Q

a 250 kc mill cable is ____ “ in diameter?

A

.25 or 1/4” in diameter

148
Q

definition of hypotenuse?

A

the longest side of a right triangle, opposite the right angle.

149
Q

transformer ______ ratios and transformer _____ ratios are directly proportional

A

voltage and turns ratios

150
Q

closed wye wye or closed delta delta can have one of two angular displacements?

A

0 degrees, 180 degrees

151
Q

closed wye delta or closed delta wye can have one of two angular displacement?

A

30 degrees, 210 degrees

152
Q

an ____ ___________ is a type of transformer with a single tapped high voltage winding. they are often used in transmission substations for 230kV to 161kV transformation

A

auto transformer

153
Q

step type voltage regulator are a type of auto transformer with primary winding connected ________ with the line and the secondary winding connected _____ with the load

A

primary connected parallel, secondary connected series

154
Q

fall arrest equipment, work positioning equipment, or travel restricting equipment must be used by workers at elevated positions more than _ ____ above ground on poles, towers and similar structures unless the individual is a qualified climber who is free climbing to change location on the structure.

A

4 feet

155
Q

work from a platform attached to a pole at an elevation greater than _ ____ from surrounding elevations requires the use of appropriate fall protection at all times while working from the platform

A

6 feet

156
Q

live line tools constructed of FRP (fiberglass-reinforced plastic) must be able to successfully withstand _______ volts per foot

A

100,000 volts

157
Q

a means of egress such as a stairway, ladder, ramp or similar, must be located in trench excavations that are _ ____ or more in depth so as to require no more than __ ____ of lateral travel

A

4 feet or more, 25 feet of lateral travel

158
Q

a _________ ______, as defined by OSHA, is someone who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them

A

competent person

General Knowledge (1 decks)

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