Electrical Machines Which type of motors are preferred in lifts? DC compound motors. None of these DC shunt motors. DC series motors. DC compound motors. None of these DC shunt motors. DC series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a step down transformer which one of the following statements is true? Secondary current is less than primary current. Number of secondary turns is more than that of primary. Secondary power is less than primary power. Number of secondary turns is less than primary turns. Secondary current is less than primary current. Number of secondary turns is more than that of primary. Secondary power is less than primary power. Number of secondary turns is less than primary turns. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the reactance voltage. None of these statically induced voltage. dynamically induced voltage. reactance voltage. None of these statically induced voltage. dynamically induced voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 75 rpm 3000 rpm 1500 rpm 375 rpm 75 rpm 3000 rpm 1500 rpm 375 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? None of the options. Electromagnets. Permanent magnets. Both B and C. None of the options. Electromagnets. Permanent magnets. Both B and C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on P. Z. P and Z. none of these. P. Z. P and Z. none of these. ANSWER DOWNLOAD EXAMIANS APP
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