SSC JE Mechanical Engineering 24th Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 171

While starting the centrifugal pump

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Question 172

In the centrifugal pump, maximum efficiency is obtained when the blades are

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Question 173

One dimension flow is one

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Question 174

The hydraulic mean depth for a rectangular section is: Where, b = Width of rectangular section d = Depth of water

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Question 175

The branch of Engineering Science, which deals with water at rest or in motion is called

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Question 176

Pressure inside a water droplet is given by the relation

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Question 177

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

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Question 178

A manometeris used to measure

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Question 179

The length of mouthpiece as-compared to diameter is

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Question 180

The lower critical Reynolds numberis approximately equal to

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