12) On increasing the load of a d.c. shunt motor, its speed will :

remain constant

increase proportionately

increase slightly

reduce slightly

Answer is:

reduce slightly

the applied e.m.f.

the torque required

the flux required

the speed of the motor

Answer is:

the power drawn in kVa

the power drawn in kW

the output power available at the shaft

the gross power

Answer is:

its losses are minimum

its current drainage is minimum

the applied e.m.f. is minimum

the load is minimum

Answer is:

reversing the supply connections

interchanging the armature and field connections

adding a resistance in the field circuit

reversing the armature connections or the field connections

Answer is: