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Elap 2B > Chapter 5 > Flashcards

Chapter 5 Flashcards

1
Q

Equipment grounding conductors, in general when they are insulated, shall be provided with an outer finish that is ___ in color

A

green

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2
Q

A(n) ___ is a circuit breaker with an intentional delay between the time when the fault or overload is sensed and the time when the CB operates.

A

inverse-time-circuit-breaker–ITCB-

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3
Q

Overcurrent protective devices are permitted to be installed in clothes closets if they are located at least 12” from combustible materials.

A

False

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4
Q

All conductors installed in electrical distribution systems shall be insulated.

A

False

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5
Q

Circuit breakers shall clearly indicate whether they are in the open or closed position.

A

True

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6
Q

___ is generated when current flows through a conductor.

A

Heat

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7
Q

Conductors used for direct burial shall be identified for such use.

A

True

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8
Q

Plug fuses have a voltage rating of ___ V between conductors in most applications.

A

125

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9
Q

Copper and aluminum conductors shall not be terminated in a manner that causes the dissimilar metals to come in direct contact with each other.

A

True

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10
Q

The three basic classifications of insulation ratings are 60°C (140°F), 75°C (167°F), and ___°C (194°F).

A

90

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11
Q

Circuit breakers used as switches for a 120 V fluorescent lighting circuit shall be listed and marked “SWD” or “HID”.

A

True

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12
Q

Insulated conductors installed in wet locations shall be of a type ___ for the use.

A

listed

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13
Q

A(n) ___ is any current in excess of that for which the conductor or equipment is rated.

A

overcurrent

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14
Q

The next ___ standard size OCPD of 800 A or less is permitted to be used where the OCPD does not correspond to a standard size.

A

higher

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15
Q

Ampacity of feeder taps not over 25’ shall not be less than 1/3 of the rating of the overcurrent protective device protecting the ___ conductors.

A

feeder

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16
Q

Plug fuses of 15 A and lower are identified by a(n) ___ configuration of the fuse window.

A

hexagonal

17
Q

The maximum standard rating for a fuse is 5000 A.

A

False

18
Q

In general, fuses and circuit breakers shall not be connected in ___.

A

parallel

19
Q

Type S fuses are designed for circuits not exceeding 100 V.

A

False

20
Q

___ AWG and larger ungrounded conductors installed in a raceway that enters a box shall be protected by an identified insulating fitting.

A

4

21
Q

A(n) ___ fuse is a plug fuse that incorporates a screw configuration that is interchangeable with fuses of other ampere ratings.

A

Edison-base

22
Q

When conductors are run in parallel in separate raceways, the raceways shall have the same ___ characteristics.

A

Electrical

23
Q

Insulated conductors are the most common conductors installed in electrical systems.

A

True

24
Q

___ conditions include installations where the conductors are exposed to oils, greases, vapors, etc. that break down the integrity of the conductors’ insulation.

A

Corrosive

25
Q

THW conductors are permitted to be installed in wet locations.

A

True

26
Q

Paralleled conductors shall all be the same length.

A

True

27
Q

No conductor shall be installed in such a manner that the operating temperature of its ___ is exceeded.

A

Insulation

28
Q

Locations can be classified as either dry, ___, or wet.

A

damp

29
Q

Overcurrent devices are permitted in bathrooms.

A

False

30
Q

Flexible cords and cables shall be protected against overcurrent in accordance with their ampacities.

A

True

31
Q

Cartridge fuses with no markings are rated for ___ A.

A

10000

32
Q

The least potentially damaging overcurrent occurs when there is an overload.

A

True

33
Q

Circuit breakers that are not marked have an interrupting rating of ___ A.

A

5000

34
Q

In general, insulated grounded conductors (neutral) sizes 6 AWG or smaller shall be identified with an outer finish that is white or ___.

A

Gray

35
Q

When used for equipment grounding purposes, only covered or insulated conductors are permitted.

A

False

Elap 2B (12 decks)

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