Explore topic-wise MCQs in Irrigation Engineering.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

For a wide trapezoidal channel, the channel index is ______

A. 2/3
B. 5/3
C. 4/3
D. 1/3
Answer» C. 4/3
2.

Choose the incorrect advantage of AOSM.

A. The adjustment can be made by raising or lowering the roof blocks at low costs by dismantling the masonry in which the roof bolts are fixed
B. Any undue tampering of roof blocks by the cultivators can be easily detected
C. The module is not perfectly rigid
D. It is the most simple and cheaper outlet
Answer» D. It is the most simple and cheaper outlet
3.

The principal feature of an ASOM is similar to those of a flume regulator.

A. True
B. False
Answer» B. False
4.

An irrigation outlet is said to be proportional, when its ______________

A. Setting = outlet index/ channel index
B. Setting = channel index/ outlet index
C. Setting = channel index x outlet index
D. Setting = channel index + Outlet index
Answer» B. Setting = channel index/ outlet index
5.

The only irrigation semi-module through which the discharge is not proportional to H1/2 where H is the head causing flow through the module is _____________

A. kennedy’s gauge outlet
B. open flume outlet
C. free pipe outlet
D. adjustable orifice semi-module
Answer» C. free pipe outlet
6.

Calculate the discharge through an open flume outlet for the following data:Coefficient of discharge = 1.71Width of the throat = 0.15 mHead over the crest measured from FSL of distributary = 1.8 m

A. 0.62 cumecs
B. 0.82 cumecs
C. 0.62 lit/sec
D. 6.2 lit/sec
Answer» B. 0.82 cumecs
7.

The proportionality of APM was sacrificed to enable the outlet to carry higher silt charge by increasing the setting to 8/10.

A. True
B. False
Answer» B. False
8.

Calculate the minimum modular head loss involved in ASOM if the head measured from the upstream water level in the distributary is 1.5 m and the width of the throat as 0.16 m.

A. 1.50 m
B. 1.15 m
C. 1.07 m
D. 1.00 m
Answer» C. 1.07 m
9.

Which module is mostly adopted and is considered to be the best of all the modules?

A. Adjustable orifice semi-module
B. Open flume outlet
C. Venturi-flume outlet
D. Free pipe outlet
Answer» B. Open flume outlet
10.

Calculate full supply discharge for a free pipe outlet for the following data.Head on the upstream side above the centre line of pipe = 0.55 mCoefficient of discharge = 0.62The diameter of the pipe = 25 cm

A. 8 lit/sec
B. 9 lit/sec
C. 0.9 lit/sec
D. 9 cumecs
Answer» C. 0.9 lit/sec
11.

Which of the following is the simplest and the oldest type of a flexible outlet?

A. Kennedy’s gauge outlet
B. Open flume outlet
C. Free pipe outlet
D. Adjustable orifice semi-module
Answer» D. Adjustable orifice semi-module
12.

Which of the following is not a type of semi-modules?

A. Free pipe outlet
B. Kennedy’s Gauge outlet
C. Open flume outlet
D. Gibb’s module
Answer» E.