Electrical Machines The squirrel cage induction motors are provided with blades in order to balance the rotor dynamically. facilitate cooling of rotor. eliminate noise. none of these. balance the rotor dynamically. facilitate cooling of rotor. eliminate noise. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine both the windings have thick leads both the windings have thin leads armature winding has thick leads whereas field winding has thin leads armature winding has thin leads whereas field winding has thick leads both the windings have thick leads both the windings have thin leads armature winding has thick leads whereas field winding has thin leads armature winding has thin leads whereas field winding has thick leads ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is DC. None of these both of above. AC. DC. None of these both of above. AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for increasing efficiency. All of these reducing armature reaction. mechanical balancing. increasing efficiency. All of these reducing armature reaction. mechanical balancing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field in reverse. to a DC source. to an AC source. to earth. in reverse. to a DC source. to an AC source. to earth. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? constant loss both A and B None of these variable loss constant loss both A and B None of these variable loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS