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Single Phase Motors TPC Questions with Detailed
Verified Answers
A servomechanism has the abbreviations CX and CT on it. What do these mean? Ans: ✓ ✓ ✓
Control transmitter, control transformer
A servomotor operates when the Ans: ✓ ✓ ✓ control field is energized
Many electric motors are manufactured according to standards set by Ans: ✓ ✓ ✓ NEMA
On a motor nameplate, the NEMA designation "A" indicates a Ans: ✓ ✓ ✓ normal starting current
Two capacitors connected in series have a combined voltage rating equal to the _________ of their
individual ratings. Ans: ✓ ✓ ✓ sum
In order for a dual-voltage motor to run on 120 V instead of 240 V, its running windings must be
connected in Ans: ✓ ✓ ✓ parallel
A manual single-phase motor starter has Ans: ✓ ✓ ✓ one or two poles
The purpose of the long time-lag thermal cutout on a dual-element fuse is to Ans: ✓ ✓ ✓ prevent
unnecessary shutdowns
To determine whether a winding in a split-phase motor is grounded, you should use a(n) Ans: ✓ ✓
✓ megohmmeter
You can reverse the direction of rotation in a split-phase motor by reversing the connections to
Ans: ✓ ✓ ✓ either winding but not both
Hysteresis motors will run on frequencies ranging from _________ to _________ Hz. Ans: ✓ ✓ ✓
25; 2000
You can mechanically reverse a shaded-pole motor by removing the end plates of the motor and
____________ the stator poles. Ans: ✓ ✓ ✓ physically reversing
© Get it right 2025 Getaway - Stuvia US All rights reserved
Single Phase Motors TPC Questions with Detailed
Verified Answers
A servomechanism has the abbreviations CX and CT on it. What do these mean? Ans: ✓ ✓ ✓
Control transmitter, control transformer
A servomotor operates when the Ans: ✓ ✓ ✓ control field is energized
Many electric motors are manufactured according to standards set by Ans: ✓ ✓ ✓ NEMA
On a motor nameplate, the NEMA designation "A" indicates a Ans: ✓ ✓ ✓ normal starting current
Two capacitors connected in series have a combined voltage rating equal to the _________ of their
individual ratings. Ans: ✓ ✓ ✓ sum
In order for a dual-voltage motor to run on 120 V instead of 240 V, its running windings must be
connected in Ans: ✓ ✓ ✓ parallel
A manual single-phase motor starter has Ans: ✓ ✓ ✓ one or two poles
The purpose of the long time-lag thermal cutout on a dual-element fuse is to Ans: ✓ ✓ ✓ prevent
unnecessary shutdowns
To determine whether a winding in a split-phase motor is grounded, you should use a(n) Ans: ✓ ✓
✓ megohmmeter
You can reverse the direction of rotation in a split-phase motor by reversing the connections to
Ans: ✓ ✓ ✓ either winding but not both
Hysteresis motors will run on frequencies ranging from _________ to _________ Hz. Ans: ✓ ✓ ✓
25; 2000
You can mechanically reverse a shaded-pole motor by removing the end plates of the motor and
____________ the stator poles. Ans: ✓ ✓ ✓ physically reversing
© Get it right 2025 Getaway - Stuvia US All rights reserved
