Electrical Machines In DC machine torque depends on which of the following? speed both A and B flux (φ) armature current (I) speed both A and B flux (φ) armature current (I) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 3 to 5. 1.0. 2 to 3. 1.5 to 2. 3 to 5. 1.0. 2 to 3. 1.5 to 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Shunt motor Series motor Cumulative compound motors Differential compound motor Shunt motor Series motor Cumulative compound motors Differential compound motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is 230 V some what less than 230 V some what more than 230 V not possible 230 V some what less than 230 V some what more than 230 V not possible ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? All of these armature mmf armature flux armature current All of these armature mmf armature flux armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will decrease increase to rated voltage and then may decrease increase gradually and then stay at rated voltage remain nearly constant decrease increase to rated voltage and then may decrease increase gradually and then stay at rated voltage remain nearly constant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS