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EE > RME 2-A > Flashcards

RME 2-A Flashcards

1
Q

SI unit of potential difference.

A

Volt

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2
Q

Which of the following conditions do NOT have to be met by alternators working in principle?

A. terminal voltage of each mavhine must be the same
B. machines must have the same phase rotation
C. alternators must operate at the same frequency
D. the machines must have equal KVA rating

A

D. the machines must have equal KVA rating

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3
Q

The ampacity of the phase conductors from generator terminals to the first over current device shall not be less than ___ percent of the nameplate current rating of the generator

A

115

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4
Q

If a live conductor is connected accidentally, the severity of the electrical shock is determined primarily by _____.

A

the contact resistance

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5
Q

If the potential across a circuit is 40 V and the current is 5, 000 mA, what is the equivalent resistance of the circuit?

A

8 ohms

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6
Q

If the voltage rotation of a three-phase motor us A-B-C, the current rotation is _____

A

B-C-A

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7
Q

Unit of electric charge.

A

Coulomb

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8
Q

All the conductors in a multi wire branch circuit shall originate from the same ______.

A

panelboard

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9
Q

In a parallel circuit, the total resistance is ________.

A

smaller than the smallest resistance in the combinations

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10
Q

Each service disconnecting means shall ________ disconnect all ungrounded service conductors from the premises wiring system.

A

simultaneously

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11
Q

Which of the following gases is given off by lead-acid storage batteries?

A

hydrogen

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12
Q

The minimum wire bending space within the enclosure for motor controllers for a 1/0 conductor (2 wires per terminal) would be _____ mm.

A

130 mm

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13
Q

MI cable shall be permitted ______.

I. As feeder and branch circuits
II. For wet and dry locations
III. For concealed or exposed

A

I, II and III

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14
Q

Underground service conductors carried up a pole must be protected from mechanical injury to a height of at least _____ feet.

A

8 feet

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15
Q

________ is the ability of a material to permit the flow of electrons.

A

Conductance

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16
Q

Coaxial cables for a fire alarm system shall be permitted to have copper covered steel center conductors with a minimum of 30 percent copper shall be listed as type _______.

I. FPL
II. FPLR
III FPLS
IV FPLP

A

I, II and IV only

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17
Q

A passive element in a circuit is the one that ______ the energy.

A

receives

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18
Q

To qualified applicants for examination, notice of admission shall be issued not later than _______ days prior to the first day of examination.

A

10

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19
Q

Only wiring method recognized as _______ are included in the code

A

Suitable

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20
Q

A piece if electrical equipment that is designed to operate at alternate intervals of (1) load and no load; or (2) load and rest; or (3) load, no load, and rest is called _________ duty.

A

Intermittent

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21
Q

What is the ohmic value of resistor having the color bands: brown, green, red, and gold?

A

1.5 kiloohms

22
Q

Voltage between the hot (undergrounded) conductors in FCC cable shall not exceed ______ volts.

A

300

23
Q

A _____ is a protective device for limiting surge voltages by discharging or bypassing surge current and it also prevents continued flow of follow current whole remaining capable if repeating these functions

A

Surge arrester

24
Q

A clamp-on ammeter will measure ______.

A

Accurately only clamped perpendicular to a conductor

25
Q

The terminal voltage of this dc generator varies widely when a change in load occurs. Which one of this?

A

Series

26
Q

Expired license shall be renewed only after complying the required CPE units. What does CPE stands for?

A

Continuing Professional Education

27
Q

In general, the most important point to watch in the operation of transformers is the ______.

A

Temperature

28
Q

If a 10 ohm, a 20 ohms, and a 30 ohms resistor are connected in series across a 120 volt source, the voltage across the 20 ohm resulted will be ______ volts.

A

40

29
Q

A bare copper conductor can be used in an underground service _____ .

A. Where judged suitable for soil conditions
B. Where used in raceway
C without regard to soil conditions where part of cable assembly
D. All of the above

A

D. All of the above

30
Q

Size 18 or 16 fixture wires, and flexible cords shall be permitted for the control and operating circuits of X-ray and auxiliary equipment where protected by not larger than ______ ampere overcurrent devices.

A

20

31
Q

Conductors supplying outlets for arc or Xenon projectors of the professional type shall not be smaller than _____

A

8

32
Q

The feeder conductor shall not be lower than that of the service-entrance conductors where the feeder conductors carry the total load supplied by service-entrance conductors with an ampacity of _______ amperes or less

A

55

33
Q

You shouldn’t use a file without a handle because ____

A

The user may be injured

34
Q

Any member the Board of Electrical Engineering may be removed by the _______ for neglect of duty, incompetence, malpractice, irregularities in the examinations, for unprofessional, unethical or dishonorable conduct, after having been given the opportunity to defend himself in a proper administrative investigation

A

President of the Republic of the Philippines

35
Q

A show window is calculated at _____ VA per linear foot.

A

200

36
Q

A commutator is ________

A

A device for causing the alternating currents generated in the armature

37
Q

A resistor of 6 ohms is connected in series with a 6-ohm resistor. What resistance must be placed across the 6-ohm resistor so that the total resistance shall be 7 ohms?

A

3 ohms

38
Q

Concrete, brick, or tile walls are considered as being _____

A

Grounded

39
Q

If the primary winding of a 10 to 1 step down transformer has 20 000 turns, the secondary winding should have _____ turns

A

2000

40
Q

Resistance opposes the flow of current in a circuit and it measured in ____

A

Ohms

41
Q

This tool is used to cut away the rough edges inside the end of the pipe after it has been cut with a cutter

A

Reamer

42
Q

Underground flat-top raceways over 4 inches but not over 8 inches wide with a minimum of 1 inch spacing between raceways shall be covered with concrete to a depth of not less than ______

A

1”

43
Q

Where the constant speed is required, the motor should be a _____

A

Compound motor

44
Q

Liquid tight flexible metal conduit may be used in which if the following locations?

A

In connection areas for gasoline dispensing pumps

45
Q

Infrared lamps for industrial heating appliances shall have over current protection not exceeding ____ amps.

A

50

46
Q

Conduit installed in a concrete slab is considered a ______.

A

Wet location

47
Q

Which of the following locations is not permitted for the use of surface raceways?

A

Hoist ways

48
Q

Induction heating coils that operated or may operate at a voltage greater than 30 volts AC shall be _____ to protect personnel in the area.

I. Isolated
II. Made inaccessibility by location
III. Enclosed in a non-metallic enclosure
IV. Enclosed in a split metallic enclosure

A

I, II, III and IV

49
Q

_______ raceways are not suitable to enclose conductors that are subject to physical damage.

A

PVC schedule 40

50
Q

What limits the size of an induction motor that can be started across the line

A

Horsepower rating

EE (3 decks)

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