Water Requirements of Crops MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Water Requirements of Crops, a fundamental topic in the field of Irrigation Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Water Requirements of Crops MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Water Requirements of Crops mcq questions that explore various aspects of Water Requirements of Crops problems. Each MCQ is crafted to challenge your understanding of Water Requirements of Crops principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Irrigation Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Water Requirements of Crops MCQs are your pathway to success in mastering this essential Irrigation Engineering topic.

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Water Requirements of Crops MCQs | Page 13 of 14

Q121.
Penman’s equation can also be used to compute evaporation from a water surface like a lake if _________
Discuss
Answer: (a).reflection coefficient = 0.05
Q122.
The pan evaporation can also be determined by Christiansen formula.
Discuss
Answer: (a).True
Q123.
What is the consumptive use for a crop in the month of April having a consumptive use coefficient equal to 0.80 and pan evaporation is 35 cm?
Discuss
Answer: (a).28 cm
Q124.
Compute the total consumptive use for a drainage basin by Penman’s formula. The slope of saturation vapour pressure V/s chart at 40°C is 2.95 mm of Hg/°C and the net incoming solar radiation is 5.705 mm of evaporative water/day. Assume, Eₐ = 18.07 mm/day and Psychrometric constant = 0.49 mm of Hg/°C.
Discuss
Answer: (a).17.01 mm/day
Discuss
Answer: (a).Ea = 0.35 (1 + V2/160) (es – ea)
Q126.
Which zone is the most important from an irrigation point of view?
Discuss
Answer: (a).Soil Zone
Q127.
What is the name of water which flows under gravity?
Discuss
Answer: (b).Gravity Water
Q128.
Field capacity is different from gravity water.
Discuss
Answer: (a).True
Q129.
How many days are generally taken to obtain field capacity after free gravity drainage?
Discuss
Answer: (d).2 to 5 days
Q130.
By what type of forces the soil grains retain water on their surfaces?
Discuss
Answer: (c).Molecular Attraction and by Loose Chemical Bonds