D.C. Motors

A. Series motor
B. Shunt motor
C. Cumulatively compounded ‘motor
D. Differentially compounded motor

A. the power drawn in kW
B. the power drawn in kVA
C. the gross power
D. the output power available at the shaft

A. the torque required
B. the speed of the motor
C. the voltage across the terminals
D. none of the above

A. 100% of the previous value
B. 50% of the previous value
C. 25% of the previous value
D. 10% of the previous value
E. none of the above

A. proportional to the armature current
B. proportional to the square of the armature current
C. proportional to field current
D. inversely proportional to the armature current

A. low
B. around 500 Q
C. 1000 Q
D. infinitely large

A. Blowers
B. Conveyors
C. Air compressors
D. Centrifugal pumps

A. Lenz’s law
B. Faraday’s law
C. Coloumb’s law
D. Fleming’s left-hand rule

A. Slip rings
B. Commutator
C. Field winding
D. Armature winding

A. series motors
B. shunt motors
C. compound motors
D. none of the above