A. good power factor
B. high efficiency
C. minimum cost
D. high starting torque
A. retentivity
B. resistivity
C. susceptibility
D. none of the above
A. varying field flux with tapped field windings
B. connecting rheostat in series
C. applying variable voltage by means of silicon controlled rectifier
D. applying variable voltage by means of variable auto-transformer
E. all of the above methods
A. centrifugal switch
B. capacitor
C. commutator
D. all of the above
A. 200 to 250 W
B. 250 to 500 W
C. 50 to 150 W
D. 10 to 20 W
A. armature
B. field
C. rotor
D. stator
A. is opposite to that of brush shift
B. is the same as that of brush shift
C. is independent of brush shift