Electrical Machines The ___________________ generator has the poorest voltage regulation. shunt. under-compounded. differential compounded. over compounded. shunt. under-compounded. differential compounded. over compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 1.06 0.87 0.96 0.95 1.06 0.87 0.96 0.95 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5Ω and back back emf 200 V is 440 A. 40 A. 44 A. 400 A. 440 A. 40 A. 44 A. 400 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be 15.6 Nm 16.55 Nm 15.28 Nm 15.92 Nm 15.6 Nm 16.55 Nm 15.28 Nm 15.92 Nm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generator works on the principle of production None of these static induced emf. dynamically induced emf. both A and B. None of these static induced emf. dynamically induced emf. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Induction motors Synchronous motors DC Shunt Motor Both Synchronous and Induction motor Induction motors Synchronous motors DC Shunt Motor Both Synchronous and Induction motor ANSWER DOWNLOAD EXAMIANS APP
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