Electrical Machines If the flux of DC motor approaches zero, its speed will aprroach infinity. remain unchanged. between zero and infinity. approach zero. aprroach infinity. remain unchanged. between zero and infinity. approach zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant torque. current. power. speed. torque. current. power. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. The highest speed of the alternators is 3000 rpm. 3600 rpm. 600 rpm. 500 rpm. 3000 rpm. 3600 rpm. 600 rpm. 500 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will not change and remain at 220 V increase to 1.25 times 220 V increase to a value greater than 1.25 times 220 V increase to value lying between 220 V and 1.25 times 220 V not change and remain at 220 V increase to 1.25 times 220 V increase to a value greater than 1.25 times 220 V increase to value lying between 220 V and 1.25 times 220 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of core are generally made of carbon. stainless steel. cast iron. silicon steel. carbon. stainless steel. cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous reactance of an alternator represents field winding reactance armature reactance and leakage reactance All of these a reactance operating at synchronous speed field winding reactance armature reactance and leakage reactance All of these a reactance operating at synchronous speed ANSWER DOWNLOAD EXAMIANS APP
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