Electrical Machines A transformer has hysteresis loss of 30 W, at 240 V, 60 Hz. The hysteresis loss at 200 V, 50 Hz will be 28 W. 36 W. 25 W. 30 W. 28 W. 36 W. 25 W. 30 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance only. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance and leakage reactance. armature resistance only. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance and leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine windings are full pitched None of these short pitched either of these full pitched None of these short pitched either of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to none of above. control field current. vary the armature resistance. limit the armature current. none of above. control field current. vary the armature resistance. limit the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a motor falls from 1100 r.p.m at no-load to 1050 r.p.m at rated load. The speed regulation of motor is 2.57 %. 4.76%. 2.56 %. 3.76%. 2.57 %. 4.76%. 2.56 %. 3.76%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will run at lower speed. run at normal speed. not run. burn. run at lower speed. run at normal speed. not run. burn. ANSWER DOWNLOAD EXAMIANS APP
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