Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. none of these. cage. linear. wound. none of these. cage. linear. wound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for any of the above. single phase to three phase transformation. three phase to single phase transformation. three phase to two phase transformation. any of the above. single phase to three phase transformation. three phase to single phase transformation. three phase to two phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Bl2v. Bl2v2. Blv2. Blv. Bl2v. Bl2v2. Blv2. Blv. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in no sparking. sparking at the leading edge of the brush. sparking at the middle of the brush. sparking the trailing edge of the brush. no sparking. sparking at the leading edge of the brush. sparking at the middle of the brush. sparking the trailing edge of the brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Synchronous motor. Shunt motor. Separately compound motor. DC series motor. Synchronous motor. Shunt motor. Separately compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determined by Lenz's law. Fleming's right hand rule. Fleming's left hand rule. Ampere's law. Lenz's law. Fleming's right hand rule. Fleming's left hand rule. Ampere's law. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS