Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? either GNA or MNA None of these MNA GNA either GNA or MNA None of these MNA GNA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? 50 MW generator in a power plant. Fractional horse power high speed motor. Hermetically sealed motor of refrigerator. Fractional horse power slow speed motor. 50 MW generator in a power plant. Fractional horse power high speed motor. Hermetically sealed motor of refrigerator. Fractional horse power slow speed motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Shunt motor. Separately compound motor. Synchronous motor. DC series motor. Shunt motor. Separately compound motor. Synchronous motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Auto transformer starting. Rotor resistance starting. Stator resistance starting. Direct online starting. Auto transformer starting. Rotor resistance starting. Stator resistance starting. Direct online starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field winding connection of DC shunt motor is changed It will run in same direction. motor will not run. motor will become slow. It will run in opposite direction. It will run in same direction. motor will not run. motor will become slow. It will run in opposite direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is more than normal speed. less than normal speed. normal speed. zero. more than normal speed. less than normal speed. normal speed. zero. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS