Water Management MCQs with Answers | Agriculture – Page 6

Question 101 Water Management

A Pitot tube converts the velocity head of flowing water into pressure. Which relation does it use?

Correct answer A. H = v2/2g

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Question 102 Water Management

What is the ratio of the actual vapour pressure to the saturation vapour pressure at the same temperature called?

Correct answer A. Relative Humidity

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Question 103 Water Management

What is the difference between saturation vapour pressure and actual vapour pressure at a constant temperature called?

Correct answer B. Saturation deficit

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Question 104 Water Management

When water vapour is mixed with other gases in the atmosphere, what is the pressure exerted by each component of the mixture called?

Correct answer D. Partial pressure

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Question 105 Water Management

What is the curve called that shows how river flow falls after the peak as groundwater contributions decline over time?

Correct answer B. Ground water depletion curve

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Question 106 Water Management

When seepage water passes through a groundwater aquifer and then joins a surface stream, what is the stream called?

Correct answer C. Effluent stream

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Question 107 Water Management

Who represented the infiltration capacity curve, showing how infiltration capacity changes with time after rainfall begins?

Correct answer D. Horton

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Question 108 Water Management

Field capacity is water held by a saturated soil after free drainage. What is the water retained by a saturated soil after centrifuging at 1000 times gravity called?

Correct answer B. Equivalent moisture

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Question 109 Water Management

After rainfall, what is the water called that flows directly over the ground and immediately joins the river?

Correct answer D. True surface runoff

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Question 110 Water Management

Hydrology deals with the yearly depletion and recharge of water resources, so knowledge of it is essential to do what properly?

Correct answer C. Manage

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Question 111 Water Management

What is a curve made of two or more arcs of different radii bending in the same direction with a common tangent called?

Correct answer B. Compound curve

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Question 112 Water Management

What is the point at which a body balances when it is supported called?

Correct answer B. Centre of gravity

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Question 113 Water Management

What is a graph showing the storage volume of a reservoir or tank at any given water level called?

Correct answer D. Capacity curve

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Question 114 Water Management

Roughly how much rainfall does the Indus plain, Pakistan’s main agricultural region, receive annually?

Correct answer C. 150 mm

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Question 115 Water Management

What is the flow present in drains outside the rainy season, such as sanitary sewage, called?

Correct answer D. Dry weather flow

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Question 116 Water Management

If E1 is the specific energy before a hydraulic jump and E2 the energy after it, how is the efficiency of the jump given?

Correct answer B. E2 / E1

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Question 117 Water Management

By what force is water held in the soil pores of the root zone against gravity, forming capillary water?

Correct answer C. Capillary force

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Question 118 Water Management

Waterlogging is the condition in which the water table rises to what position relative to the root zone of plants?

Correct answer C. Within

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Question 119 Water Management

In Kennedy’s silt theory, the critical velocity is proportional to which power of the depth of flow?

Correct answer A. D^0.64

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Question 120 Water Management

What are canals called that are dug directly from a river without a head regulator?

Correct answer C. Inundation canals

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