Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 40 A. 440 A. 400 A. 44 A. 40 A. 440 A. 400 A. 44 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In diesel engine, gas engine type of machine contains ___________________ pole type of alternator. non uniform cylindrical. none of these. cylindrical. salient. non uniform cylindrical. none of these. cylindrical. salient. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutation in a DC machine may be explained as a process in which magnetic field is set up. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. how alternate flux affects the main field flux. in which magnetic field is set up. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. how alternate flux affects the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ___________________ generator has the poorest voltage regulation. over compounded. differential compounded. shunt. under-compounded. over compounded. differential compounded. shunt. under-compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Resistance commutation is used generally in case of fractional kW DC machines. DC machines bellow 5 kW. None of these DC machines above 10 kW. fractional kW DC machines. DC machines bellow 5 kW. None of these DC machines above 10 kW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. increases any of the above decreases remains unaffected increases any of the above decreases remains unaffected ANSWER DOWNLOAD EXAMIANS APP
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