Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant speed. power. torque. current. speed. power. torque. current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power indicated on the name plate of any motor is always the Output power at the shaft. Power drawn in KVA. Power drawn in KW. Gross power. Output power at the shaft. Power drawn in KVA. Power drawn in KW. Gross power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator copper loss Rotational loss Stator core loss All of these Stator copper loss Rotational loss Stator core loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor, the starting torque developed is proportional to V² supply voltage V 1/V² 1/V V² supply voltage V 1/V² 1/V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is the largest conversion device? Induction machine All of these Synchronous machine DC machine Induction machine All of these Synchronous machine DC machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The following statements relate to compensating winding (CW) and interpole winding (IW) of a dc machine : 1. CW neutralizes the armature reaction under a pole pitch 2. IW is connected in series with armature circuit 3. IW produces mmf in the commutating zone only 4. CWmmf is directed along the brush axis 5. Mmf produced by IW is equal to armature mmf From these, the correct statements are 1, 2, 3, 4 and 5 2, 3, 4 1, 3, 4, 5 2, 3, 4, 5 1, 2, 3, 4 and 5 2, 3, 4 1, 3, 4, 5 2, 3, 4, 5 ANSWER DOWNLOAD EXAMIANS APP
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