Q.26 Which of the following equipment is a permit to separate the generator, feeders and circuit breakers from the bus bar for maintenance?Ans A. FuseB. Lightning arresterC. IsolatorD. Circuit breakerCorrect Ans Provided: C

Q.38 In a control system, reference input is the ______ value of the controlled variable.Ans A. desiredB. maximumC. randomD. minimumCorrect Ans Provided: A

Q.55 Which of the following methods is used to extend range of wattmeter?Ans A. By using series resistance on voltage coilB. By using series resistance on current coilC. By using instrument transformer conjunction with voltage and current coilD. ...

Q.88 The output of a 2-input logic gate goes high only when both inputs are low, else it remains low. Which gate it is?Ans A. NORB. ANDC. XORD. NANDCorrect Ans Provided: A

Q.37 When there is a change in the current or magnetic flux of the coil, an electromotive force is induced. This phenomenon is termed as ______.Ans A. self-inductanceB. capacitanceC. mutual inductanceD. transformationCorrect Ans Provided: A

Q.54 Under load conditions, the efficiency of two identical transformers can be measured by:Ans A. Blocked Rotor testB. No load testC. High potential testD. Sumpner’s testCorrect Ans Provided: D

Q.24 Which of the following is the cost that depends upon maximum demand but is independent of units generated?Ans A. Full costB. Running costC. Fixed costD. Semi-fixed costCorrect Ans Provided: D

Q.52 In a control system, the controlled output is usually indicated by a notation _____.Ans A. r(t)B. b(t)C. e(t)D. c(t)Correct Ans Provided: D

Q.82 Which of the equipment is consisting in megger instruments?Ans A. Current source and ammeterB. Current source and voltmeterC. Voltage source and ammeterD. Voltage source and voltmeterCorrect Ans Provided: D

Q.75 Which of the following is an example of a sequential circuit?Ans A. MultiplexerB. CountersC. ComparatorD. EncoderCorrect Ans Provided: B