SSC JE Mechanical Engineering 27th Jan 2018 Shift-2

Instructions

For the following questions answer them individually

Question 181

The line joining the leading and training of the airfoil is known

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Question 182

The velocity for which the specific energy is minimum is known as

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Question 183

The pressure of water in a Pelton wheel is

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Question 184

A single impeller pump deliver the maximum head of

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Question 185

A pitot tube is used to measure

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Question 186

The head loss in a sudden expansion from 6 cm diameter pipe to 12 cm diameterpipein termsof velocity v1 in the smaller diameterpipe is
(a) $$\frac{3}{16}.\frac{v_1^2}{2g}$$
(b) $$\frac{5}{16}.\frac{v_1^2}{2g}$$
(c) $$\frac{7}{16}.\frac{v_1^2}{2g}$$
(d) $$\frac{9}{16}.\frac{v_1^2}{2g}$$

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Question 187

The parameters which determine the friction for turbulent flow in a rough pipe are

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Question 188

The volute casing of ‘a centrifugal pump has which of the following functions?
1. Eliminating loss of head due to changein velocity after exit from impeller.
2. Directs the flow towards the delivery pipe.
3. Converts a part of the velocity head to pressure head.
4. Gives a constant velocity of flow.
Select the correct answer using the codes given below.

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Question 189

Match List I with List II and select the correct answer using the codes given below the lists.

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Question 190

Which one ofthe following statements is correct? While using boundary layer equations, Bernoulli's equation

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