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SUBSTATIONS > SUBSTATIONS > Flashcards

SUBSTATIONS Flashcards

1
Q

-2 TO THE 4TH POWER

A

-16

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2
Q

3(5X-2) = 9X-12

A

X=-1

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3
Q

ELECTROMOTIVE FORCE IS? (ELECTROMOTIVE PRESSURE)

A

VOLTAGE

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4
Q

44W VACUUM AT 110V. HOW MANY AMPS?

A

.4 AMPS

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5
Q

³√64

A

4

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6
Q

A VEHICLE GOES 240 MILES ON 8 GAL, 212 ON 7.5 AND 251 ON 8.2. WHAT IS THE AVERAGE MPG

A

29.6 (ADD THE MILES AND THEN ADD ALL GALLONS AND DIVIDE

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7
Q

WHAT ARE TEP TRANSMISSION VOLTAGES (3)?

A

500KV, 345KV, 138KV

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8
Q

WHAT ARE TEP DISTRIBUTION VOLTAGES (3)?

A

4KV, 13.8KV, 46KV

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9
Q

WHAT HEIGHT DO YOU NEED FALL PROTECTION?

A

6’

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10
Q

HOW FAST DOES ELECTRICITY TRAVEL?

A

186,000MPS (SPEED OF LIGHT)

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11
Q

WHAT UNIT OF MEASURE IS USED FOR IMPEDANCE?

A

OHMS

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12
Q

IF YOU HAVE A POLE 12” IN DIAMETER, WHAT IS THE CIRCUMFERENCE?

A

37.68 (2PIR, OR PI*D)

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13
Q

OPPOSITION TO THE FLOW OF ELECTRONS

A

RESISTANCE

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14
Q

CONVERT 44CM TO FEET GIVEN THAT 1 INCH EQUALS 2.54CM

A

1.44 FEET

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15
Q

2.45MILLIAMPS IS HOW MANY AMPS?

A

.00245A

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16
Q

4 KILOVOLTS IS HOW MANY VOLTS?

A

4,000

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17
Q

WHAT IS THE RESISTANCE OF R1?

A

R1=20
120V / 1.5A = R TOTAL (80), SUBTRACT R TOTAL (80) FROM R2 (60) = R1 (20)

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18
Q

HOW MANY DEGREES DO THE INSIDE ANGLES OF A RIGHT TRIANGLE EQUAL?

A

180

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19
Q

OHMS LAW STATES THAT CURRENT IS PROPORTIONAL TO?

A

VOLTAGE

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20
Q

OHMS LAW EXPRESSED AS?

A

OHMS LAW (V=IR & P=V*I)

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21
Q

A GUY WIRE IS ATTACHED 1’ FROM THE TOP OF A 70’ POLE THAT IS BURIED 10% OF ITS LENGHTH +2FT. THE WIRE IS ANCHORED 80 FT FROM THE BASE OF THE POLE. HOW LONG IS THE GUY WIRE?

A

100’

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22
Q

TRUCK INSPECTIONS ARE DONE?

A

DAILY

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23
Q

IF YOU INCREASE THE TURNS ON THE PRIMARY COIL OF A TRANSFORMER THE OUTPUT VOLTAGE?

A

DECREASES

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24
Q

IF YOU HAVE 109V, EACH TAP CHANGE IS THE VOLTS PLUS OR MINUS 2%, HOW MANY TAPS DO YOU NEED TO CHANGE TO BE WITHIN TEP TOLERANCE? (NO ANSWER)

A

NO ANSWER, STUDY MATH

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25
Q

WHAT TWO PARTS OF A METER MAKE UP THE ELEMENT

A

POTENTIAL COIL & CURRENT COIL

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26
Q

ACB STANDS FOR

A

AIR CIRCUIT BREAKER

27
Q

AT WHAT VOLTAGE DO LINEMEN NEED RUBBER GLOVES?

A

50V

28
Q

IF A MAYDA IS IN PROGRESS…?

A

STAY CLEAR ON THE RADIO (MAINTAIN RADIO SILENCE)

29
Q

WHEN YOU ENTER A SUBSTATION YOU MUST NOTIFY

A

TRANSMISSIONS

30
Q

PHASE TO PHASE VOLTAGE = 13.8KV, WHAT IS PHASE TO GROUND?

A

8KV
(Square root of 3 is 1.732)

31
Q

A TEP VEHICLE MUST BE GROUNDD IF ITS WITH HOW MANY FEED OF AN ENERGIZED LINE?

A

10’

32
Q

6 TO THE -2 POWER?

A

1/36

33
Q

YOU MUST BE A JOURNEYMAN TO TAKE A CLEARANCE?

A

TRUE

34
Q

WHAT 3 TYPES OF RELAYS ARE USED FOR PROTECTION?

A

OVERCURRENT RELAY, OVERVOLTAGE RELAY, GROUND RELAY

35
Q

WHAT DOES OSHA STAND FOR

A

OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION

36
Q

WHAT IS THE PURPOSE OF OSHA?

A

TO PROTECT THE WORKER/WORKER SAFETY

37
Q

YOU CAN NOT BE FIRED FOR FILING A COMPLAINT AGAINST YOUR EMPLOYER?

A

TRUE

38
Q

WHAT IS SUBTRANSMISSION VOLTAGE?

A

46KV

39
Q

ONLY A JOURNEYMAN CAN OPERATE A MANLIFT?

A

FALSE

40
Q

A TRAILER HOLDS 16,675LBS AND A GALLON OF OIL WEIGHS 23LBS, HOW MANY GALLONS CAN A TRAILER HOLD?

A

725 GALLONS

41
Q

A TRANSFORMER HOLDS 480 GAL OF OIL AND YOU CAN FILTER 80GAL AN HOUR. HOW LONG DOES IT TAKE TO FILTER IT ALL?

A

6 HOURS

42
Q

IF A TRAILER IS SWERVING YOU SHOULD?

A

LIGHTLY APPLY BREAKS

43
Q

BEFORE OPERATING A TEP VEHICLE YOU SHOULD?

A

CHECK SURROUNDING AREA

44
Q

THE PRIMARY INSULATORS IN A TRANSFORMER ARE MADE OF?

A

OIL AND PAPER

45
Q

YOU HAVE TWO 60W BULBS AND ONE 40W BULB AND THEY ARE LEFT ON FOR 8 HOURS. HOW MANY KILOWATT HOURS ARE USED?

A

1.28KWH
MULTIPLY 860 (TWO TIMES, ONE FOR EACH BULB) =960
MULTIPLY 840=320
ADD THE TWO TOGETHER (1280) AND CONVERT TO KWH (MOVE DECIMAL)

46
Q

WHAT IS THE PURPOSE OF AN OVERHEAD TRANSFORMER IN A DISTRIBUTION SYSTEM?

A

STEP DOWN THE VOLTAGE FROM PRIMARY TO SECONDARY/SERVICE

47
Q
A
48
Q

WORKER ___ WEAR PROTECTIVE FOOTWEAR

A

SHALL

49
Q

DEFINE SHORT CIRCUIT

A

LOW RESISTANCE PATH TO SOURCE

50
Q

TO TIGHTEN A BOLT YOU TURN

A

CLOCKWISE

51
Q

REVERSE THREAD MEANS

A

TURN IT COUNTER CLOCKWISE TO TIGHTEN

52
Q

IDENTIFY A PHILLIPS HEAD BY WHAT SYMBOL?

A

CROSS PATTERN

53
Q

WHAT IS THE PURPOSE OF A TAILBORD?

A

HAZARDS ON JOB, WORK TO BE DONE (SCOPE), JOB ASSINGMENTS

54
Q

THREE PARTS OF A POWER COMPANY ARE

A

GENERATION, TRANSMISSION, DISTRIBUTION

55
Q

IT TAKES 45 MINUTS TO CLEAN ALL CONTACTS ON A BREAKER, YOU ARE ASSIGNED A SUBSTATION WITH 12 BREAKERS, HOW LONG WILL IT TAKE TO CLEAN?

A

9 HOURS

56
Q

GUY NUMBER 1 PAINTS A HOUSE IN 5HR, GUY NUMBER 2 PAINTS THE SAME HOUSE IN 10 HOURS, HOW LONG WILL IT TAKE THEM TO PAINT IT TOGETHER?

A

3.33 HOURS
1/5X + 1/10X = 1 (CHECK ON THIS)

57
Q

WHAT DOES A VOLT METER TEST

A

VOLTS

58
Q

WHAT DOES AN AMP METER TEST?

A

CURRENT

59
Q

WHAT IS THE PUPOSE OF A NEUTRAL WIRE IN A SYSTEM?

A

RETURN PATH FOR CURRENT TO SOURCE

60
Q
A

4/5

61
Q

IF A BULB BURNS OUT IN A STRING OF LIGHTS AND NO LIGHTS WORK WHAT KIND OF CIRCUIT?

A

SERIES CIRCUIT

62
Q

GIVE VALUE OF 4 THOUSANTHS IN DECIMAL FORM

A

.004

63
Q

YOU MUST INSPECT RUBBER GLOVES AND PROTECTIVE GLOVES BEFORE EACH USE

A

TRUE

SUBSTATIONS (1 decks)

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