Q.59 The number of turns on the primary of current transformer is usually:Ans A. 50 to 100B. Above 100C. 1 to 5D. 5 to 10Correct Ans Provided: C

Q.55Ans A.B.C.D.Correct Ans Provided: B

Q.57 A PWM switching scheme is used in single phase inverters to:Ans A. Minimize the effect of loadB. Reduce the lower order harmonicsC. Reduce the total harmonic distortionD. Reduce the higher order harmonicsCorrect Ans Provided: B

Q.45 A dc series motor should always be started with load because:Ans A. It cannot start without loadB. At no-load it will rotate at a dangerously high speedC. It draws a small amount of current at no load.D. ...

Q.47 How many I/O ports can 8085 access:Ans A. 256B. 128C. 512D. 1028Correct Ans Provided: A

Q.40 If the load is purely resistive and adjustable, Maximum power transfer is achieved, when:Ans A.B.C.D.Correct Ans Provided: B

Q.49 What about the multiplication and division instructions of 8085?Ans A. Not support multiplication and division instructionB. Only multiplication instructionC. Only division instructionD. Both multiplication and division instructionCorrect Ans Provided: A

Q.42 A 400 V, 50 Hz, 4-pole, three phase induction motor cannot run at 1500 rpm because:Ans A. At 1500 rpm there will be no emf inducted in the rotor circuit and hence no torque will be developedB. ...

Q.44 A triac is a:Ans A. 2 terminal bidirectional switchB. 3 terminal unilateral switchC. 2 terminal unilateral switchD. 3 terminal bidirectional switchCorrect Ans Provided: D

Q.51Ans A.B.C.D.Correct Ans Provided: C