DGVCL Exam Paper (11-12-2011)
The purpose of skewing of rotor slots in an induction motor is

To reduce the magnetic hum of the motor
To reduce the locking tendency of the rotor
To increase the distributuion factor
To increase the breadth factor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
DC series motors are best suited for traction work because

Its torque is proportional to the square of the armature current and speed is directional proporational to torque
Torque and speed are proportional to the square of the armature current
Its torque is proportional to the square of the armature current and speed is inversely proportional to torque
Torque and speed are inversely proportional to the square of the armature current

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
Hysteresis in an instrument means

The change in the same reading when the input is first increased and then decreased
The reliability of the instrument
The inaccuracy due to change in temperature
The repeatability of the instrument

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON DGVCL Exam Paper (11-12-2011)