Q.91 What type of diode circuit is used to add or restore a dc level to an electrical signal?Ans 1. Clamper2. IC voltage regulator3. Clipper or Limiter4. None of the optionsCorrect Ans Provided: 1
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Q.78 In a current sinking DC input module of PLC, _____Ans 1. The current flows out of the input field device2. The current flows out of the input module3. Requires that a AC sources be used with mechanical ...
Q.94 Kepler’s first law states that the path followed by a satellite around the primary cell will be __________Ans 1. a pyramid2. a circle3. an ellipse4. a triangleCorrect Ans Provided: 3
Q.77 How can a first order low pass filter can be converted into second order low pass filter?Ans 1. By adding RC || LC network2. By adding RLC network3. By adding LC network4. By adding RC networkCorrect ...
Q.83 In Hi-Fi amplifier which device is used for impedance matching purpose?Ans 1. Loudspeaker2. Equalizer3. Matching circuit4. MicrophoneCorrect Ans Provided: 3
Q.75 The free-wheeling diodeAns 1. Does not affect the input power factor2. Improves the input power factor3. Decreases the input power factor4. Make the input power factor equal to zeroCorrect Ans Provided: 2
Q.81 The function of the serration in the composite video waveform is toAns 1. Synchronize horizontal and vertical scanning2. Adjust pedestal height3. Help vertical synchronization.4. Equalize the charge in the integrator before start of the vertical retrace.Correct Ans ...
Q.82 The transformer rating in mid-point converter isAns 1. Equal to the load rating2. Half of the load rating3. Is very small compare to load rating4. Double the load-ratingCorrect Ans Provided: 4
Q.79 What is the slew rate of an op-amp if the output voltages change from 5 V to 8 V in 0.4 ms?Ans 1. 7500 V/ms2. 7.5 V/ms3. 1 V/ms4. 5 V/msCorrect Ans Provided: 2
Q.95 A spectrum analyzer provides a display, withAns 1. Frequency on vertical axis and amplitude on horizontal axis2. Frequency on horizontal axis and Amplitude on vertical axis3. Amplitude and frequency on vertical axis4. None of the optionsCorrect Ans ...
