Canal Irrigation System and Canal Falls MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Canal Irrigation System and Canal Falls, 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 Canal Irrigation System and Canal Falls 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 Canal Irrigation System and Canal Falls mcq questions that explore various aspects of Canal Irrigation System and Canal Falls problems. Each MCQ is crafted to challenge your understanding of Canal Irrigation System and Canal Falls 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 Canal Irrigation System and Canal Falls MCQs are your pathway to success in mastering this essential Irrigation Engineering topic.

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Canal Irrigation System and Canal Falls MCQs | Page 14 of 16

Discuss
Answer: (c).dissipate excess land slope
Q132.
For a canal that irrigates the area directly the fall should be provided at a location FSL outstrips the G.L before the bed of the canal comes into the filling.
Discuss
Answer: (a).True
Q133.
In case of branch canals and distributary channels, the falls are located with consideration to _________________
Discuss
Answer: (a).command area
Discuss
Answer: (b).the quantity of unbalanced earthwork increases
Q135.
A canal fall is provided when the available natural slope is flatter than the designed bed slope of the channel.
Discuss
Answer: (b).False
Q136.
Consider the following statements.

I. Possibility of combining some other structure with a fall eg. regulator, road bridge etc.
II. Cutting and filling are required below and above the fall should not be necessarily equal.
III. The command should not be reduced due to the lowering of F.S.L and the fall may be located below the outlets.

Which of the following statement is correct for site selection of a fall?
Discuss
Answer: (d).I and III
Q137.
______________ fall is adopted for smaller discharges and larger drops.
Discuss
Answer: (d).Well-type fall
Q138.
Consider the following statements.

I. Syphon falls are commonly used where high levelled small drains do out-fall into a low levelled bigger drain.
II. The D/s well is necessary in case of falls greater than 1.8 m and for discharges greater than 0.29 cumecs.
III. The design discharge is determined based on the fact that V-notch is used.

Which of the following statement is correct?
Discuss
Answer: (c).I and II
Q139.
Calculate the velocity over the notch (V₁) and the velocity through the pipe (V₃) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m². Assume the value of diameter of the pipe used as 1 m.
Discuss
Answer: (a).V₁ = 3.44 m/sec and V₃ = 2.54 m/sec
Q140.
What is the height of the centre of pressure above the water level in the inlet well if the R.L of the centre of pressure is 150.83 m and the R.L of water level in inlet well is 148.30 m?
Discuss
Answer: (a).2.53 m