Q. Which of the following function is represented using a given condition?

f (t) = 1 for t=0
0 otherwise

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Q. What is the result of the expression f(t)= u (t+2) – u (t-3)?

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Q. Transfer function of a system is given by 1/S. If system has a step input, what will be the output in time domain?(Function exist only for positive time value)

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Q. Function f (t) has Laplace transform F(S). How will you represent Laplace transform of integral of f(t)?

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Q. Which of the following represents Laplace transform of sinh(at)?

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Q. Which of the following can be a source of supply in dc power supplies?

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Q. Which of the application’s filters used for?

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Q. Which of the following represent a change of output voltage when load current is increased?

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Q. Which of the following generate output voltage much closer to true value?

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Q. Why zener diodes are provided in dc supply?

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Q. Stability of output voltage is entirely depended on ______________

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Q. For excellent stability, the zener diode is kept in temperature controlled casket.

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Q. For instrumentation system, precision variable voltage-reference system is necessary.

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Q. Which of the following can be used as a comparator?

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Q. Which of the following are not the standard value of Zener diodes?

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Q. Which of the following signals are generated by Wien-bridge oscillators?

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Q. In a Wien-bridge oscillator for obtaining 160Hz frequency output what will be the capacitor value if resistance is selected as 1KΩ?

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Q. In a Wien-bridge oscillator, frequency of oscillation and capacitor value have ____________________

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Q. Which of the following device is a non-linear device?

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Q. In RC phase shift oscillator, one R-C bridge provides ___________ phase shift.

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