Electrical Machines As compared to an induction motor, the air gap in a DC motor is same. more. less than 50%. between 50% and 90%. same. more. less than 50%. between 50% and 90%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is shunt connected. cumulatively compounded. series connected. deferentially compounded. shunt connected. cumulatively compounded. series connected. deferentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At slip s = 1 torque developed in machine is electromagnetic torque. maximum torque. none. starting torque. electromagnetic torque. maximum torque. none. starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 1000. 2000. 0. 500. 1000. 2000. 0. 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM with line frequency f1 and winding factor kw1 and kw2 for stator and rotor respectively the ratio of per phase stator winding emf E1 to per phase rotor winding emf E2 at standstill is given by E1 / E2 = 1. E1 / E2 = N1kw1 / N2kw2. E1 / E2 = f1kw1 / f2kw2. E1 / E2 = N1 / N2. E1 / E2 = 1. E1 / E2 = N1kw1 / N2kw2. E1 / E2 = f1kw1 / f2kw2. E1 / E2 = N1 / N2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. ANSWER DOWNLOAD EXAMIANS APP
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