Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Increase by 5%. Remain unchanged. Reduce by 5%. Depends on other factor. Increase by 5%. Remain unchanged. Reduce by 5%. Depends on other factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is the largest conversion device? DC machine Synchronous machine Induction machine All of these DC machine Synchronous machine Induction machine All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. armature resistance and leakage reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the full load speed of 3-phase, 50Hz induction motor is 950 rpm, what is its half load speed nearly equals to? 950 rpm 940 rpm 1000 rpm 975 rpm 950 rpm 940 rpm 1000 rpm 975 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine both the windings have thin leads armature winding has thin leads whereas field winding has thick leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads both the windings have thin leads armature winding has thin leads whereas field winding has thick leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on dielectric losses. copper losses. core losses. stray losses. dielectric losses. copper losses. core losses. stray losses. ANSWER DOWNLOAD EXAMIANS APP
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