SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2

Instructions

For the following questions answer them individually

Question 171

For an open channelatcritical depth the flow becomes

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Question 172

In case of pump the specific speed is given by:
(a) $$\frac{N\sqrt{Q}}{H^{\frac{1}{2}}}$$
(b) $$\frac{N\sqrt{N}}{H^{\frac{3}{4}}}$$
(c) $$\frac{N\sqrt{P}}{H^{\frac{2}{3}}}$$
(d) $$\frac{N\sqrt{Q}}{H^{\frac{3}{4}}}$$

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Question 173

The units of kinematic viscosity are

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Question 174

The hydraulic mean depth for a pipe water is equal to: Where d is the diameter of the pipe

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Question 175

Vertical distribution of velocity in an open channel for laminar flow can be assumed as

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Question 176

Which of the following is an example of phenomenon surface tension?

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Question 177

The height of the free surface above any point is known as

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Question 178

The metacentric height of battle ships is

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Question 179

The loss of head due to suddencontraction is equal to

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Question 180

The value of critical velocity is governed by the

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