ISRO Scientist or Engineer Civil 2018

Instructions

For the following questions answer them individually

Question 31

A trapezoidal channel has a bottom width of 6m and side slope of 1:1. The depth of flow is 1.5 m at a discharge of 15 cum/sec. The hydraulic radius and hydraulic average depth of flow respectively are

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Question 32

The unit of kinematic viscosity is

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Question 33

A floating body attains stable equilibrium if its metacentre is

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Question 34

The equation of continuity of flow is based on the principle of conservation of

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Question 35

Weber number is the ratio of inertia force to

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Question 36

Water contains

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Question 37

If 2% solution of a sewage sample is incubated for 5 days at 20 degrees and depletion of oxygen was found to be 5 ppm, BOD of the sewage is

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Question 38

In a sludge digestion tank, the gas that mainly evolves is

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Question 39

The per capita demand of water is calculated in litres

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Question 40

Zero hardness of water can be achieved by

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