SSC JE Mechanical Engineering 2013

Instructions

For the following questions answer them individually

Question 171

With the same cross-sectional area and placed in the turbulent flow, the largest drag will be experienced by

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Question 172

A streamlined body is such that

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Question 173

Pascal second is the unit of

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Question 174

The shear stress in a turbulent pipe flow

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Question 175

A rectangular tank of square cross-section (2m × 2m) and height 4 m is completely filled up with a liquid. The ratio of total hydrostatic force on any vertical wall to its bottom is

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Question 176

Air vessel is used in a reciprocating pump to obtain

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Question 177

Shear stress in a turbulent flow is due to

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Question 178

The discharge through a single acting reciprocating pump is (N-rpm)

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Question 179

For viscous flow between two parallel plates, the pressure drop per unit length is equal to

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Question 180

The unit discharge $$Q_{u}$$  and unit speed $$N_{u}$$ curve for a turbine is shown in figure, curve B is for

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