Electrical Machines A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will both decrease both increase decrease and increase respectively increase and decrease respectively both decrease both increase decrease and increase respectively increase and decrease respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for shunt motors. series motors. compound motors. All of these shunt motors. series motors. compound motors. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the dynamically induced voltage. statically induced voltage. reactance voltage. None of these dynamically induced voltage. statically induced voltage. reactance voltage. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque is proportional to which of the following? both A and B armature current(Ia) flux(φ) None of these both A and B armature current(Ia) flux(φ) None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is Greater than 1. 0.25. 0.5. near to 1. Greater than 1. 0.25. 0.5. near to 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following generators are used in arc welding? shunt generators series generators cumulative compound generators differential compound generators shunt generators series generators cumulative compound generators differential compound generators ANSWER DOWNLOAD EXAMIANS APP
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