Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of Greater than 90° 90° less than 90° 0° Greater than 90° 90° less than 90° 0° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slot edges in a DC machine are made of Fibre. Cast iron. Mild steel. Silicon steel. Fibre. Cast iron. Mild steel. Silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Cummulative compound. Level Compound. Differentical compound. None of these. Cummulative compound. Level Compound. Differentical compound. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in a DC machine is in direct opposition to the main poles. is in the same direction as the main poles. makes an angle with the main pole axis which is load dependent. makes an angle of 90° with the main pole axis. is in direct opposition to the main poles. is in the same direction as the main poles. makes an angle with the main pole axis which is load dependent. makes an angle of 90° with the main pole axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called crawling. cogging. harmonics. resonance. crawling. cogging. harmonics. resonance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of generated emf in the armature coil of a DC machine is 1. the same as that of the current in a generator 2. the same as that of the current in a motor 3. opposite to that of the current in a generator 4. opposite to that of the current in a motor From these, the correct answer is 2, 3 1, 4 2, 4 1, 3 2, 3 1, 4 2, 4 1, 3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS