Brainscape's Knowledge GenomeTM

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


See full index

33262737 > RME 1A > Flashcards

RME 1A Flashcards

1
Q

One advantage of the moving coil instrument is that its scale is?

A

linear

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

An overcurrent trip unit a circuit shall be connected in series with each…

A

underground conductor

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

The advantage of cutting a rigid metal conduit with a hacksaw rather than a pipe cutter is…

A

less reaming is required

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

Outlets for specific appliance such as laundry equipment shall be within ______ feet of the appliance.

A

6

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

When three single phase transformers are connected in such a way that the line current is equal to the phase current this transformer is…

A

wye

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

Fuses and circuits breakers shall be so located or _____ that persons will not be burned or otherwise injured by their operation.

A

shielded

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

The ratio of the maximum demand of the system to the total connected load of the systems called the _____ of the system.

A

demand factor

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

A transformer is more efficiently utilized when the load has a ______ power factor

A

high

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

A 1/2’ rigid metal nipple with three conductors can be filled to an area of ______ square inches.

A

1.2426

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

Carbon brushes are used on a commutator because?

A

they lubricate and polish

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

Time switches, flashers and similar devices where mounted so they are accessible only to qualified persons shall be permitted without barriers provided they are located within an enclosure such that any energized part within ______ of the manual adjustment or switch are covered by suitable barriers.

A

150mm

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

Enclosed knife switches that require the switch to be open before the housing door can be opened, are called ______ switches.

A

safety

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

Electrical current is measured in terms of…

A

electrons passing a point per second

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

The most common cause of contamination by water of oil used in transformer located indoors is?

A

decomposition of organic matter in the oil

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

Splices and taps shall be permitted in surface non-metallic raceways having a removable cover that is accessible after installation. The conductors, including splices and taps shall not fill the raceway to more than _____ percent of its area at that point.

A

75

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

A subsystem of the emergency system consisting of feeders and branch circuits, meeting the requirements of article 700 and intended to provide adequate power needs to ensure safety to patients and personnel, and which are automatically connected to alternate power sources during interruption of the normal power source is the…

A

life safety branch

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

When applying rubber tape to an electrical splice, it would be necessary to?

A

stretch the tape properly during the application

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

Fixed electric space heating loads shall be computed at ______ percent of the total connected load: however, in no case shall a feeder load current be less than the rating of the largest branch circuit supplied.

A

125

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

Receptacles on construction sites shall not be installed on branch circuit which…

A

supply temporary lighting

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

If a low resistance is connected in parallel with a higher resistance, the combined resistance is…

A

always less than the low resistance

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

The voltage of a circuit is best classified as?

A

The effective difference of potential between any two conductors

22
Q

Conductors shall be considered outside a building _____

I. when installed in a raceway
II. where installed within a building in a raceway enclosed by 2” of brick
III. where installed under not less than 2” of concrete beneath a building

A

II and III Only

23
Q

________ is the ration of output to input.

A

efficiency

24
Q

The basic unit of electrical work is the?

A

watt-hour

25
Q

High AC voltages are usually measured using a?

A

potential transformer and voltmeter

26
Q

In a multiple motor circuit there is feeder protection, branch-circuit protection and motor protection. If the feeder protection trips, the fault would be expected to be in?

A

the feeder

27
Q

Individual office partitions of the freestanding type or groups of individual partitions that are electrically connected, mechanically contiguous, and do not exceed _____ feet when assembled, shall be permitted to be connected by a single flexible cord and plug.

A

30

28
Q

A cell, supplies a load current of 0.5 A for a period of 20 hours until its terminal voltage falls to unacceptable level. How long it could be expected to supply a current of 100 mA?

A

100 hours

29
Q

On smaller gauges of wire, they are pencil-stripped to prevent?

A

nicks in the wire

30
Q

A DC generator supplies a load of resistance at 1.4 ohm through a pair of wires having a total resistance of 0.10 ohm. The voltage at the DC generator terminals is 120V, what is the voltage across the load?

A

112 V

31
Q

Hoist way is a _____ in which an elevator or dumbwaiter is designed to operate. (3)

A
  1. Shaftway
  2. Hatchway
  3. Well hole
32
Q

No swimming pool lighting fixtures shall be installed for operation on supply circuit over _____ volts between conductors.

A

150

33
Q

The current used for charging storage batteries is…

A

direct

34
Q

Identified, as used in the CODE in reference to a conductor or its terminals, means that such a conductor or terminal is to be recognized as…

A

grounded

35
Q

Special permission is…

A

The written consent of the authority having jurisdiction.

36
Q

Types TPT, TS and TST shall be permitted in lengths not exceeding _____m when attached directly or by means of a special type of plug, to a portable appliance rated at 50 watts or less.

A

2.4 m

37
Q

Which of the following wiring methods may be used inside the duct used for vapour removal and ventilation of commercial type cooking equipment?

A

None HAHAHA

38
Q

The electric device which blocks dc but allows ac.

A

capacitor

39
Q

Aluminum grounding conductors shall not be used where

I. within 18” of earth
II. subject to corrosive conditions
III. indirect contact with masonry

A

I, II, and III

40
Q

Live parts exposed on the front of a switchboard are present, the working space in front of the switchboard shall not be less than _____ inches

A

36

41
Q

Metal plugs or plates used with non-metallic boxes shall be recessed…

A

1/4”

42
Q

A capacitor opposes?

A

change in voltage

43
Q

The earth shall not be used as the sole _____ conductor

A

equipment grounding

44
Q

_____ duty is a type of service where both the load and the time intervals may have wide variations.

A

varying

45
Q

3 ohms, 6 ohms, a 9 ohms and a 12 ohms resistor are connected in series. Which resistor will consume the most power is the ohm?

A

12 ohms

46
Q

A current of 10 A divides between two branches in parallel, one having a resistance of 4 ohms and the other 6 ohms. How is the current in the 4 ohm resistance?

A

6 A

47
Q

The vector sum of the phase currents is equal to what in a balanced, resistive three-phase system?

A

zero

48
Q

Which of the following instruments would use to indicate the phase relationship between the voltage and the current of an AC circuit?

A

power factor meter

49
Q

Fluorescent lighting fixtures may be used as raceways if?

A

listed for use as a raceway

50
Q

A 500 ampere load supplied by a 120/240 v feeder requires a feeder neutral with an ampacity of _____ amps

A

410

33262737 (12 decks)

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