a) Low speed at high loads and high speed at low loads
b) Low speed at low loads and high speed at low loads
c) Widely varying speed
d) Constant speed

Ans: (d)

a) Run at lower speed
b) Burn
c) Run at normal speed
d) Run continuously but for sparking at brushes

Ans: (b)

a) Torque remains constant but h.p. will change
b) Horse power remains constant but torque will change
c) Both remains constant
d) Both will change

Ans: (b)

a) Half of the speed of the motors
b) Rated speed of any of the motors
c) One-fourth of the speed of the motors
d) Same as in parallel

Ans: (c)

a) Half the torque when they are connected in parallel
b) Twice the torque when they are connected in parallel
c) Four times the torque when they are connected in parallel
d) Equal to the torque when they are connected in parallel

Ans: (c)

a) Due to armature reaction and leakage of flux both
b) Due to armature reaction of the machine
c) Due to leakage flux
d) Of synchronous machine

Ans: (a)

a) Resistively
b) Conductively
c) Inductively
d) None of these

Ans: (b)

a) Field flux
b) Armature resistance
c) Applied voltage
d) All of these

Ans: (d)

a) Depends on requirement
b) Compound motor is used
c) Shunt motor is used
d) Series motor is used

Ans: (a)

a) They are not self-starting
b) To light the high initial current by inserting high resistance
c) To overcome back emf
d) None of these

Ans: (b)

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