Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is zero unity lagging leading zero unity lagging leading ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field to earth. to an AC source. to a DC source. in reverse. to earth. to an AC source. to a DC source. in reverse. ANSWER DOWNLOAD EXAMIANS APP
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? 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will None of these increase not changed decrease None of these increase not changed decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 375 to 500. 720 to 920. 500 to 720. 1440 to 2880. 375 to 500. 720 to 920. 500 to 720. 1440 to 2880. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC shunt motors are suitable for Centrifugal pumps All of this. Lathes. Blowers and fans. Centrifugal pumps All of this. Lathes. Blowers and fans. ANSWER DOWNLOAD EXAMIANS APP
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