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NCCER ELECTRICAL LEVEL 2 MODULE 2/35 QUESTIONS AND ANSWERS (A+)
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NCCER ELECTRICAL LEVEL 2 MODULE 2/35 QUESTIONS AND ANSWERS (A+)
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NCCER ELECTRICAL LEVEL 2MODULE 2/35 QUESTIONS AND
ANSWERS (A+)
Any exposed live parts must be guarded if they are
operating at - √Answer :50V or more between terminals
Quiz :Which of the following are most likely to use
dynamic braking? - √Answer :Forklifts
Quiz :In a DC series motor, how much of its full-load
torque is developed at starting? - √Answer :500%
Quiz :For a given number of poles, which of the
following determines the speed of an AC motor? -
√Answer :Frequency
Quiz :Which of the following motors is used where the
required starting torque is high and speed control is
desirable - √Answer :compound
Quiz :the synchronous speed at which a four-pole, 60Hz
induction motor operates is - √Answer :1,800 rpm
Quiz :slip is best described as . . . - √Answer :The
difference between the synchronous speed and the
speed of the rotor in an induction motor
Quiz :Which of the following motor operate on the
principle of a rotating magnetic field? -
√Answer :induction motors
, Quiz :horsepower is used to rate the - √Answer :output
capacity of a motor
Quiz :How many motor designs does NEMA designate -
√Answer :5
Quiz :In a split-phase motor, how much greater is the
starting current when compared to the full-load current?
- √Answer :6 to 8 times
Quiz :The capacitor-start motor is the single-phase
motor type that has the - √Answer :highest starting
torque
Quiz :The wound rotor induction motor is used -
√Answer :for speed control and to limit starting current
Quiz :which of the following is true of shaded-pole
motor? - √Answer :they have a low starting torque, a low
efficiency, and a high noise level
Quiz :For a constant-torque load, the horsepower
increases and decreases - √Answer :in direct proportion
to the speed
Quiz :the primary method of varying the speed on a dc
shunt motor is to adjust the voltage and current on the
field winding or the - √Answer :armature
Quiz :According to NEMA definition, which of the
following is a type of open motor - √Answer :eather-
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