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Electric PMMI With Questions And 100% ALL CORRECT ANSWERS
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Electric PMMI With Questions And 100% ALL CORRECT ANSWERS
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JACKLINEElectric PMMI With Questions And 100% ALL CORRECT ANSWERS
Terms in this set (54)
A fatal current can be as small as... 0.1A
Which of the following describes how a GFCI A GFCI interupts a circuit as soon as it detects a current leakage.
differs from a fuse of a circuit breaker?
When testing a manual switch, one must isolate it Check for resistance change.
from the circuit and place a multimeter across its
input leads. While operating the switch, which of
the following is the next step?
A pump controlled by a manual motor starter has Let the overload cool down and try again.
stopped. A technician arrives and presses the
overload reset button. The motor runs only when
the button is held pressed. Which of the following
is the more appropriate next step?
Which of the following initiates the action control Input voltage.
of a relay?
The purpose of the NEC is to: Safeguard people and property from electrical hazards.
Electric PMMI
1/5
, Which of the following is the function of each of Black = Hot
the wires represented by color in a typical three Green = Ground
wire AC cord? White = Neutral
Which of the following affects the calculation of Current, Length of Wire, and Cross-sectional area of wire.
voltage drop in a conductor?
Which of the following is NOT a type of an Fuse.
overload device on a magnetic motor starter?
Which of the following provides overcurrent Fuses & Circuit Breakers.
protection?
Which of the following statements is true of a It will deliver 25 volts to the secondary, the current in the secondary will be four times higher than
step-down transformer with a 4:1 turns ratio and the primary, and the power available at the secondary winding will be the same as the primary.
100 volts supplied to its primary winding?
Power is equal to voltage times: Current.
A voltmeter is connected in a circuit by: Placing the test leads in parallel with the circuit device.
In a parallel circuit, total current is equal to: The sum of the individual branch circuit current.
Which of the following is the opposition to current Resistance.
flow?
Which of the following is the purpose of the frame To identify the motor mechanical arrangement.
number on a motor nameplate?
How many degrees apart are the phases of a 120.
balanced, three-phase system?
Suppose there is a three-phase, four-wire wye 240.
transformer secondary connection. If the phase-
to-phase voltage is 480 VAC, what is the phase-
to-phase neutral voltage?
Which of the following is the function of an It opposes change in current flow.
inductor?
The technique of using a capacitor to "smooth out" Filtering.
the changes in DC voltage is called:
Electric PMMI
2/5
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