Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 16.67%. 15.30%. 14.28%. 18.25%. 16.67%. 15.30%. 14.28%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ___________________ generator has the poorest voltage regulation. under-compounded. shunt. differential compounded. over compounded. under-compounded. shunt. differential compounded. over compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sparking at the the brushes, in a DC machines is due to armature reaction. reactance voltage. high resistance of carbon brushes. presence of commutator. armature reaction. reactance voltage. high resistance of carbon brushes. presence of commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control in one direction only. below rated speed. above rated speed. in both direction. in one direction only. below rated speed. above rated speed. in both direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on dielectric losses. copper losses. stray losses. core losses. dielectric losses. copper losses. stray losses. core losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant voltage control constant power control constant current control constant torque control constant voltage control constant power control constant current control ANSWER DOWNLOAD EXAMIANS APP
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