Related Questions

In a capacitor start single-phase motor, when capacitor is replaced by a resistance
A torque will increase
B the motor will consume less power
C motor will run in reverse direction
D motor will continue to run in same direction
After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on
A running winding
B rotor winding
C field winding
D compensating winding
A wound rotor induction motor is preferred, as compared to squirrel cage induction motor, when major consideration is
A Slop speed operation
B High starting torque
C Low windage losses
D All of the above
A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because
A synchronous motor has no slip
B stator supply is not required to produce magnetic field
C mechanical load on the rotor remains constant
D synchronous motor has large airgap
While testing a capacitor with ohm meter, if the capacitor shows charging, but the final resistance reading is appreciably less than normal, it can be concluded that the capacitor is
A Short-circuited
B Open circuited
C Alright
D Leaky
In a two value capacitor motor, the capacitor used for running purposes is
A air capacitor
B paper spaced oil filled type
C ceramic type
D a.c. electrolytic type
If the capacitor of a single-phase motor is short-circuited
A the motor will not start
B the motor will run
C the motor will run in reverse direction
D the motor will run in the same direction at reduced r.p.m.
Which of the following capacitor is preferred in case of single phase motor ?
A Mica capacitor
B Paper capacitor
C Electrolytic capacitor
D Ceramic capacitor
In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.
A True
B False
In a series RLC circuit, the larger reactance determines the net reactance of the circuit.
A True
B False

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