ISRO Scientist or Engineer Electrical 2015

Instructions

For the following questions answer them individually

Question 61

OS that permits multiples programs to run simultaneously using single processoris referred as

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Question 62

The cladding which surrounds the optic fiber line is used

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Question 63

Assuming zero initial condition, the response y(t) of the system given below to a unit step input u(t) is

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Question 64

If the unit step response of a network is $$(1 - e^{-at})$$ then its unit impulse response is

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Question 65

The solution of the differential equation $$\left(\frac{dy}{dx}\right) = ky, Y(0) = C$$ is

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Question 66

The trigonometric Fourier series of an even function does not have the

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Question 67

If $$x = \sqrt{-1}$$ then the value of $$x^x$$ is

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Question 68

For the function $$f(t) = e^{\frac{-t}{r}}$$, the Taylor series approximation for $$t << \tau$$ is

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Question 69

If the impedance of an AC circuit is $$10 \angle 60^\circ Ω$$ then resistance in the circuit is

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Question 70

The dielectric strength of air under normal condition is

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