Electrical Machines Width of a carbon brush should be equal to less than the width of commutator segment. the width of the 2 to 3 commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width of the 2 to 3 commutator segment. the width more than 3 commutator segment. the width of the 1 to 2 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability cylindrical motor salient pole motor None of these both motors has same stability cylindrical motor salient pole motor None of these both motors has same stability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf in a dc machine is 1. stationary with respect to field poles 2. stationary with respect to armature 3. rotating with respect to field poles 4. rotating with respect to armature From these, the correct answer is 2, 4 2, 3 1, 4 1, 3 2, 4 2, 3 1, 4 1, 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW? 45 HZ 50 Hz 48.5 Hz 48 Hz 45 HZ 50 Hz 48.5 Hz 48 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determent by Lenzs law. Flemings right hand rule. Flemings left hand rule. Amperes law. Lenzs law. Flemings right hand rule. Flemings left hand rule. Amperes law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc compound motor. dc shunt with armature resistance control. dc shunt motor with field weakening. dc series motor. dc compound motor. dc shunt with armature resistance control. dc shunt motor with field weakening. dc series motor. ANSWER DOWNLOAD EXAMIANS APP
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