there is no supply voltage
the supply voltage is more than the capacity of the motor
the brush length is reduced by 10%
there is no load on the motor at the time of starting
interchanging the field connections only
interchanging the armature connections only
interchanging either the field or armature connections
none of the above
earthed field winding
short-circuited armature winding
motor is run above its rated speed
applied voltage is high
Capacitor-start motor
Capacitor-run motor
Repulsion-start induction-run motor
Double capacitor motor
Variation of speed with load
Low power factor
Tendency to produce sparking at the brushes
All the above