TPC 207 Single-Phase Motors UPDATED ACTUAL Questions and CORRECT
Answers
1. The three main types of capacitor motors are capacitor start-run
start, capacitor run, and capacitor
inductive
start-run
switched
torque
2. On a motor nameplate, the "time-hours" figure indi- maximum continuous run-
cates the ning time possible without
overheating
estimated service life of the motor
maximum continuous running time possible without
overheating
minimum break-in period
number of operating hours permitted between inspec-
tions
3. A useful feature of shaded-pole motors is that a stalled locked
motor is not harmed because the rotor
current is only slightly more than the full-load current
of the motor.
lightly loaded
locked
reversible
salient-pole
4. Connecting the field winding of a shaded-pole motor change the speed
across the secondary terminals of a variable autotrans-
former is one way to of the motor.
change the speed
, increase the efficiency
reduce the noise
reverse the direction
In a repulsion motor, the rotor is called a(n)
armature
5.
armature
commutator
equalizer
stator
6. Some motor controllers are rated for both full-load
current and current. locked-rotor
allowable-plugging
locked-rotor
maximum-allowed
minimum-sustainable
7. Conductors that supply two or more motors must be
able to carry at least % of the full-load current
rating of the largest motor.
125
75
100
125
150
8. All repulsion motors have a stator winding, single; run
similar to the winding(s) of a split-phase
motor.
dual; two
Answers
1. The three main types of capacitor motors are capacitor start-run
start, capacitor run, and capacitor
inductive
start-run
switched
torque
2. On a motor nameplate, the "time-hours" figure indi- maximum continuous run-
cates the ning time possible without
overheating
estimated service life of the motor
maximum continuous running time possible without
overheating
minimum break-in period
number of operating hours permitted between inspec-
tions
3. A useful feature of shaded-pole motors is that a stalled locked
motor is not harmed because the rotor
current is only slightly more than the full-load current
of the motor.
lightly loaded
locked
reversible
salient-pole
4. Connecting the field winding of a shaded-pole motor change the speed
across the secondary terminals of a variable autotrans-
former is one way to of the motor.
change the speed
, increase the efficiency
reduce the noise
reverse the direction
In a repulsion motor, the rotor is called a(n)
armature
5.
armature
commutator
equalizer
stator
6. Some motor controllers are rated for both full-load
current and current. locked-rotor
allowable-plugging
locked-rotor
maximum-allowed
minimum-sustainable
7. Conductors that supply two or more motors must be
able to carry at least % of the full-load current
rating of the largest motor.
125
75
100
125
150
8. All repulsion motors have a stator winding, single; run
similar to the winding(s) of a split-phase
motor.
dual; two
