Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant current. power. speed. torque. current. power. speed. torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor cannot be started on no load? series motors both B and C shunt motors cumulative compound motors series motors both B and C shunt motors cumulative compound motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? Electromagnets. Permanent magnets. Both B and C. None of the options. Electromagnets. Permanent magnets. Both B and C. None of the options. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to 240 A. 190 A. 127 A. 173 A. 240 A. 190 A. 127 A. 173 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for development of torque. electromechanical energy conversion. commutation. generation of voltage. development of torque. electromechanical energy conversion. commutation. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? Low load. No load. Full load. None of these. Low load. No load. Full load. None of these. ANSWER DOWNLOAD EXAMIANS APP
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