ISRO Scientist or Engineer Mechanical 2006

Instructions

For the following questions answer them individually

Question 1

In nodular iron, graphite is in the form of

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Question 2

Hardness of steel depends on

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Question 3

Too high welding current in arc welding would result in

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Question 4

Which of the following processes would produce strongest components ?

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Question 5

If a quantity Q is dependent on three other quantities $$q_1, q_2 and q_3$$ related such that $$Q = K \times (q_1)^{n_1} \times (q_0)^{n_2} \times (q_3)^{n_3}$$ then overall error $$\frac {\delta Q}{Q} = $$

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Question 6

Which of the following has maximum hardness

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Question 7

The main advantage of line organization is its

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Question 8

The mathematical technique for finding the best use of limited resources in an optimum manner is known as

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Question 9

Which of the following errors are generally distributed in accordance with the Gaussian distribution

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Question 10

$$\frac {PL^3}{3EI}$$ Is the deflection under the load P of a cantilever beam (length L, modulus of elasticity E, moment of inertia I). The strain energy due to bending is

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