Electrical Machines A DC generator beyond critical resistance will generate no voltage. maximum current. maximum power. maximum voltage. no voltage. maximum current. maximum power. maximum voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two identical loss less series motors connected in series across a dc supply voltage, runs at speed of N1 and N2, then ratio of their output power is 1 : 1. N12 : N22. none. N1 : N2. 1 : 1. N12 : N22. none. N1 : N2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 1, 2 and 3. 2, 3 and 4. 1, 3 and 4. 2 and 4. 1, 2 and 3. 2, 3 and 4. 1, 3 and 4. 2 and 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series motor is efficiently suitable for low starting torque operation. constant speed operation. none of these. high starting torque operation. low starting torque operation. constant speed operation. none of these. high starting torque operation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a DC cummulative compound wound motor is loaded Torque increase and speed decrease. Both torque and speed decrease. Torque decrease and speed increases. Torque and speed both increase. Torque increase and speed decrease. Both torque and speed decrease. Torque decrease and speed increases. Torque and speed both increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will between zero and infinity. aprroach infinity. remain unchanged. approach zero. between zero and infinity. aprroach infinity. remain unchanged. approach zero. ANSWER DOWNLOAD EXAMIANS APP
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