Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 2 / 3. 6 / 7. 4 / 5. 5 / 6. 2 / 3. 6 / 7. 4 / 5. 5 / 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is not found in which motor? DC compound. DC series. Induction motor. DC shunt. DC compound. DC series. Induction motor. DC shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be two. four. six. three. two. four. six. three. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Copper brushes in DC machine are used where high voltage and low current. where low voltage and high currents are involved. None of these in both of above cases. where high voltage and low current. where low voltage and high currents are involved. None of these in both of above cases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Increase speed Reduce starting torque. Reduce armature heating. Increase acceleration duration. Increase speed Reduce starting torque. Reduce armature heating. Increase acceleration duration. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is magnetizing. ineffective. demagnetizing. cross – magnetizing. magnetizing. ineffective. demagnetizing. cross – magnetizing. ANSWER DOWNLOAD EXAMIANS APP
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