Electrical Machines The heat generated in the transformer is dissipated mainly by radiation. convection. conduction. All of these radiation. convection. conduction. All of these 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 31.1 Ω 31.9 Ω 15.9 Ω 15.1 Ω 31.1 Ω 31.9 Ω 15.9 Ω 15.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? Operating cost is less. Insulation requirement is less. All of these Collecting of large current is simple. Operating cost is less. Insulation requirement is less. All of these Collecting of large current is simple. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Larger values of air flux density is taken while designing IM for both. none. larger output. larger bore diameter. both. none. larger output. larger bore diameter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Run at lower speed. Not run. Burn. Run at normal speed. Run at lower speed. Not run. Burn. Run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at half load. copper loss at over load. copper loss at any load. copper loss at full load. copper loss at half load. copper loss at over load. copper loss at any load. copper loss at full load. ANSWER DOWNLOAD EXAMIANS APP
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