Category: D.C. Generators

A. interpoles
B. dummy coils
C. compensating winding
D. shifting of axis of brushes

A. Shunt generators
B. Series generators
C. Compound generators
D. None of the above

A. to increase the series flux
B. to increase the generated e.m.f.
C. to reduce the combined effect of ar-mature reaction of both the machines
D. so that the two identical machines will pass approximately equal cur¬rents to the load

A. zero
B. about 2 V
C. about 50 V
D. 220 V

A. will be zero
B. will be of 5 Hz
C. will be of 5 xiVHz
D. will be of v Hz 5

A. rivets
B. counter sunk screws
C. brazing
D. welding

A. along neutral axis
B. along field axis
C. in any of the above positions
D. in none of the above positions

A. demagnetisation only
B. cross magnetisation as well as mag¬netisation
C. crossmagnetisation as well as demagnetising
D. cross magnetisation only

A. copper lugs
B. resistance wires
C. insulation pads
D. brazing

A. reduces generator e.m.f.
B. increases armature speed
C. reduces interpoles flux density
D. results in sparking trouble