Water Management MCQs with Answers | Agriculture – Page 13

Question 241 Water Management

What is the practice of making saline, uncultivable land fit for cultivation again called?

Correct answer A. Reclamation

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Question 242 Water Management

What is the art of growing crops, managing livestock, husbandry and farming called?

Correct answer C. Agriculture

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Question 243 Water Management

What is the flow called when the water depth in an open channel is greater than the critical depth?

Correct answer C. Sub-critical flow

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Question 244 Water Management

In the most economical trapezoidal channel section, half the top width is equal to what?

Correct answer A. Sloping side of channel

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Question 245 Water Management

For a given cross-sectional area and bed slope, when is a channel said to have the most economical section?

Correct answer D. All of these

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Question 246 Water Management

By how much does the total energy line lie above the hydraulic gradient line?

Correct answer B. v2/2g

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Question 247 Water Management

Which expression gives the discharge over a rectangular notch?

Correct answer D. 2/3 Cd b (2g)^1/2 H^3/2

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Question 248 Water Management

For an ideal incompressible liquid in continuous flow, the total energy of a particle stays constant as it moves from one point to another. What is this statement called?

Correct answer A. Bernoulli equation

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Question 249 Water Management

What is flow in which each liquid particle follows a definite path called?

Correct answer D. Laminar flow

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Question 250 Water Management

What is flow called when water particles have the same velocity at every section?

Correct answer A. Uniform flow

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Question 251 Water Management

What is a piezometer tube mostly used to measure?

Correct answer C. Gauge pressure

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Question 252 Water Management

Why does a falling raindrop become spherical?

Correct answer A. Surface Tension

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Question 253 Water Management

What is the weight per unit volume of a liquid at standard temperature and pressure called?

Correct answer A. Specific weight

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Question 254 Water Management

What is the ratio of the specific weight of a liquid to the specific weight of water called?

Correct answer A. Specific gravity of liquid

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Question 255 Water Management

What is the part of stream flow that comes from the subsoil or valley, possibly beneath the channel bed, called?

Correct answer B. Base flow

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Question 256 Water Management

What is fixing points on the ground to give correct lines for laying out a canal or watercourse called?

Correct answer D. Alignment of canal

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Question 257 Water Management

In studying granular material sliding on level ground, what is the angle between the normal and the resultant force at limiting static conditions called?

Correct answer C. Angle of friction

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Question 258 Water Management

What is the piezometric level of water in a well when no water is being pumped called?

Correct answer C. Static water level

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Question 259 Water Management

What is the volume of water that a unit volume of aquifer releases by gravity drainage called?

Correct answer C. Specific yield

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Question 260 Water Management

What is an aquifer called when it holds water under high pressure because it is sandwiched between two impervious layers?

Correct answer C. Confined aquifer

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