Electrical Machines Motors for fans and pumps are selected in the rpm range 375 to 500. 500 to 720. 720 to 920. 1440 to 2880. 375 to 500. 500 to 720. 720 to 920. 1440 to 2880. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.02 pu. 0.01 pu. 0.08 pu. 0.16 pu. 0.02 pu. 0.01 pu. 0.08 pu. 0.16 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? sin (α/2) Cos (α/2) Cos α Cos α² sin (α/2) Cos (α/2) Cos α Cos α² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? DC Shunt Motor Both Synchronous and Induction motor Synchronous motors Induction motors DC Shunt Motor Both Synchronous and Induction motor Synchronous motors Induction motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The change in speed of a DC generator due to increased load is corrected by increasing armature cooling. increasing terminal voltage. increasing input power of the prime mover. increasing armature resistance. increasing armature cooling. increasing terminal voltage. increasing input power of the prime mover. increasing armature resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous speed of an induction motor will be increased by speed can not be increased. increasing number of poles. decreasing of frequency. increasing of frequency. speed can not be increased. increasing number of poles. decreasing of frequency. increasing of frequency. ANSWER DOWNLOAD EXAMIANS APP
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