Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 25 ppm. 45 ppm. 35 ppm. 20 ppm. 25 ppm. 45 ppm. 35 ppm. 20 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In single phase rotary converter the number of slip rings will be six. three. two. four. six. three. two. four. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to limit the armature current. demagnetize the field partially. control the armature flux. control the field flux. limit the armature current. demagnetize the field partially. control the armature flux. control the field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator core loss All of these Stator copper loss Rotational loss Stator core loss All of these Stator copper loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Triangular and directed towards main pole. Saddle shape. Triangular and directed towards brush axis. Peaky in nature. Triangular and directed towards main pole. Saddle shape. Triangular and directed towards brush axis. Peaky in nature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. providing damper winding in its rotor circuit. any of the above methods. ANSWER DOWNLOAD EXAMIANS APP
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