Electrical Machines Motors for fans and pumps are selected in the rpm range 720 to 920. 375 to 500. 1440 to 2880. 500 to 720. 720 to 920. 375 to 500. 1440 to 2880. 500 to 720. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? Armature flux distorts the main field flux. Both option B and C. Armature flux weakens the main field flux. None of the options. Armature flux distorts the main field flux. Both option B and C. Armature flux weakens the main field flux. None of the options. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 6 pole wave winding is used. The number of parallel paths are? 1 4 2 6 1 4 2 6 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is 1 0 infinite value finite value 1 0 infinite value finite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature current armature mmf armature flux All of these armature current armature mmf armature flux All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for crane travel, trolley and boom hoist which motor is preferred? DC differential compound motor. Stepper motor. Synchronous motor. Slip ring induction motor. DC differential compound motor. Stepper motor. Synchronous motor. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
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