SSC JE Mechanical Engineering 2012

Instructions

For the following questions answer them individually

Question 151

The Kinetic energy associated with a jet through a cross sectional area ‘a’ having density $$\rho$$ and velocity ‘v’ is

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Question 152

Which shear stress distribution is the correct one corresponding to the flow through a pipe of circular cross-section with parabolic velocity profile?

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Question 153

Flow through a supersonic nozzle is an example of

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Question 154

Loss of energy due to sudden enlargement of pipe cross-section in meters of water is given by

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Question 155

For maximum power transmission through a pipe line, the friction head loss equals

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Question 156

What should be the ratio of jet speed to blade speed for maximum efficiency of a pelton wheel?

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Question 157

Pressure of 80 kPa is equivalent to a head in meter of carbon tetrachloride of relative density 1.59 of the value

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Question 158

Two pipe systems are said to be equivalent when in two systems

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Question 159

Flow between an two stream lines

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Question 160

Pseudo-plastic substances are non-Newtonian fluids for which

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