Electrical Machines Width of a carbon brush should be equal to the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reactive power generated or delivered significantly depends on load angle. frequency. both 1 and 2. excitation. load angle. frequency. both 1 and 2. excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 41% 10% 11% 21% 41% 10% 11% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance, leakage reactance and armature reaction. armature resistance only. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance only. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance and leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases upto a limit and then remains almost constant. remains constant. increases. decreases. increases upto a limit and then remains almost constant. remains constant. increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 30°. 45°. 0°. 75°. 30°. 45°. 0°. 75°. ANSWER DOWNLOAD EXAMIANS APP
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