Electrical Machines What is the highest possible speed of turbo alternators? 1000 rpm 4000 rpm 1500 rpm 3000 rpm 1000 rpm 4000 rpm 1500 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the current. Limit the flux. Avoid sparking. Limit the speed. Limit the current. Limit the flux. Avoid sparking. Limit the speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole generator with 16 coil has a two layer lap winding. The pole pitch is 4. 16. 32. 8. 4. 16. 32. 8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Select the motor that should not be started on no load? Shunt motor. Brushless DC motor. Compound motor. Series motor. Shunt motor. Brushless DC motor. Compound motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is 15.1 Ω 15.9 Ω 31.1 Ω 31.9 Ω 15.1 Ω 15.9 Ω 31.1 Ω 31.9 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? below rated speed None of these above rated speed both 1 and 2 below rated speed None of these above rated speed both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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