Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ None of the listed here Remains unchanged Is decreased Is increased None of the listed here Remains unchanged Is decreased Is increased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ By auto transformer starting None of the listed here Direct on line Star-delta starting By auto transformer starting None of the listed here Direct on line Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load Open circuited None of the listed here Short-circuited Supplying a variable resistive load Open circuited None of the listed here Short-circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is None of the listed here inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage Directly proportional to rotor resistance None of the listed here inversely proportional to rotor reactance at standstill Inveresly proportional to supply voltage Directly proportional to rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 8 poles 2 poles 4 poles 6 poles 8 poles 2 poles 4 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Short circuited Open circuited None of the listed here Supplying a variable resistive load Short circuited Open circuited None of the listed here Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS