ISRO Scientist or Engineer Electronics 2012

Instructions

For the following questions answer them individually

Question 71

“Cycle Stealing” in microprocessor parlance refers to

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Question 72

Principle of “locality” is used in context of

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Question 73

If $$A, B  \&  C$$ are vectors and $$A = 1.u_{x} + 2.u_{y} + 3.u_{z}, B = 1.u_{x} + 1.u_{y} + 1.u_{z}$$ and $$C = 3.u_{x} + 2.u_{y} + 1.u_{z}$$, then $$(A \times B).C$$

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Question 74

The system of equations $$x + y + z = 6, 2x + y + z = 7, x + 2y + z = 8$$ has

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Question 75

$$x = e^{y + e^{y + e^{y + ......}}}$$ then $$\frac{dy}{dx}$$ is

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Question 76

The area bounded by the curve $$Y^{2} = X, Y = X$$ is given by

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Question 77

The eigen values of the matrix are $$\begin{bmatrix}\cos \alpha & \sin \alpha \\ \sin \alpha & \cos \alpha \end{bmatrix}$$

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Question 78

The Laplace Transform of x(t) formed by convolution operator is:

$$x(t) = \left\{t.u(t)\right\}\otimes \left\{\cos 2 \pi t.u(t)\right\}$$

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Question 79

A random variable X has $$\overline{X} = 0  \&  \sigma_{x}^{2} = 1$$. Form a new random variable $$Y = 2X + 1$$. The values of $$\overline{Y} \& \sigma_{y}^{2}$$ are:

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Question 80

Person X can solve 80% of the ISRO question paper and Person Y can solve 60%. The probability that at least one of them will solve a problem from the question paper, selectedat random is :

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