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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. | |