Electrical Machines Slot wedges in a dc machine is made up of silicon steel. fibre. mild steel. cast iron. silicon steel. fibre. mild steel. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 1500 Volt. 1600 Volt. 2000 Volt. 0 Volt. 1500 Volt. 1600 Volt. 2000 Volt. 0 Volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become 4 times. half. one fourth. double. 4 times. half. one fourth. double. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is true for an AC synchronous motor? It is a constant speed motor. It is a high reluctance motor. It is a variable speed motor. It is a step angled motor. It is a constant speed motor. It is a high reluctance motor. It is a variable speed motor. It is a step angled motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is zero lagging unity leading zero lagging unity leading ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 50 V zero 20 V 40 V 50 V zero 20 V 40 V ANSWER DOWNLOAD EXAMIANS APP
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