Q.116 The voltage of a particular bus can be controlled by controlling the ________.Ans 1. Reactive power of the bus2. Phase angle3. Phase angle and reactive power4. Active power of the busCorrect Ans Provided: 1

Q.120 Lamp efficiency is expressed in:Ans 1. Lux2. Lumens−meter3. Lumens/ meter4. Lumens/wattCorrect Ans Provided: 4

Q.117Ans 1. 100 W2. 50 W3. 75 W4. 25 WCorrect Ans Provided: 3

Q.115 Reciprocity theorem cannot be applied to the circuits having ______.Ans 1. Bilateral elements2. Dependent sources3. Linear elements4. Passive elementsCorrect Ans Provided: 2

Q.119 The impulse response of an R-L circuit is:Ans 1. Parabolic function2. Decaying exponential function3. Step function4. Rising exponential functionCorrect Ans Provided: 2

Q.118 Open loop transfer function of a closed loop control system is defined as:Ans 1. Output / feedback signal2. Actuating signal / feedback signal3. Feedback signal / actuating signal4. Output / actuating signalCorrect Ans Provided: 3

Q.108 With reference to the error analysis of the control systems, the term ‘acceleration error constant’ stands for:Ans 1. Ramp error constant2. Position error constant3. Step error constant4. Parabolic error constantCorrect Ans Provided: 4

Q.81Ans 1. 0.1257 s2. 1.257 s3. 12.57 s4. 50 sCorrect Ans Provided: 1

Q.107 Determine the ratio of weights of copper in an auto transformer and a two winding transformer if the transformation ratio is 3.Ans 1. 1/32. 1/63. 2/34. 1/4Correct Ans Provided: 3

Q.83Ans 1. 8 S2. 6 S3. 10 S4. 4 SCorrect Ans Provided: 4