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Single Phase Motors TPC Exam| Accurate Questions and Answers
Single Phase Motors TPC Exam| Accurate Questions and Answers
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Single Phase Motors TPC Exam|Accurate Questions and Answers
A servomechanism has the abbreviations CX and CT on it. What do these
mean? - -Control transmitter, control transformer
- A servomotor operates when the - -control field is energized
- Many electric motors are manufactured according to standards set by - -
NEMA
- On a motor nameplate, the NEMA designation "A" indicates a - -normal
starting current
- Two capacitors connected in series have a combined voltage rating equal
to the _________ of their individual ratings. - -sum
- In order for a dual-voltage motor to run on 120 V instead of 240 V, its
running windings must be connected in - -parallel
- A manual single-phase motor starter has - -one or two poles
- The purpose of the long time-lag thermal cutout on a dual-element fuse is
to - -prevent unnecessary shutdowns
- To determine whether a winding in a split-phase motor is grounded, you
should use a(n) - -megohmmeter
- You can reverse the direction of rotation in a split-phase motor by
reversing the connections to - -either winding but not both
- Hysteresis motors will run on frequencies ranging from _________ to
_________ Hz. - -25; 2000
- You can mechanically reverse a shaded-pole motor by removing the end
plates of the motor and ____________ the stator poles. - -physically reversing
- A capacitor rated at 200 microfarads is still usable if its measured
capacitance is at least _________ microfarads. - -160
- A large amount of movement in any direction by a motor's shaft is a sign of
a - -worn bearing
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