MCQOPTIONS
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MCQOPTIONS
This section includes 74 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. |
The principal feature of an ASOM is similar to those of a flume regulator. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 2. |
The discharge range of Gibb’s module varies from ____________ |
| A. | 0.03 to 0.45 cumec |
| B. | 0.01 to 0.03 cumec |
| C. | 0.45 to 0.55 cumec |
| D. | 0.55 to 0.75 cumec |
| Answer» B. 0.01 to 0.03 cumec | |
| 3. |
In case of breaches in the canal, the escape present in the upstream of the breach is opened. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 4. |
For which type of class of outlets the sensitivity is zero? |
| A. | Rigid Modules |
| B. | Semi Modules |
| C. | Non-modular Outlets |
| D. | Flexible Modules |
| Answer» B. Semi Modules | |
| 5. |
What is the minimum difference between the upstream and downstream water levels to allow designed discharge through the module? |
| A. | Minimum Modular Depth |
| B. | Efficiency of an Outlet |
| C. | Drowning ratio |
| D. | Proportionality |
| Answer» B. Efficiency of an Outlet | |
| 6. |
What is the ratio of the depth of water levels over the crest is called? |
| A. | Efficiency of an Outlet |
| B. | Drowning Ratio |
| C. | Minimum Modular Head |
| D. | Modular Limit |
| Answer» C. Minimum Modular Head | |
| 7. |
What is the ratio of head output to the head input called? |
| A. | Modular Limit |
| B. | Minimum Modular Head |
| C. | Efficiency of an Outlet |
| D. | Drowning Ratio |
| Answer» D. Drowning Ratio | |
| 8. |
Which type of non-modular outlet is used in South India? |
| A. | Open Sluice |
| B. | Pipe Outlet |
| C. | Gibb’s Module |
| D. | Open Flume |
| Answer» C. Gibb’s Module | |
| 9. |
Why would a submerged pipe outlet be laid inclined? |
| A. | To Provide Proper Exit Gradient |
| B. | To Maintain Proper Hydraulic Jump |
| C. | To Increase Silt Conductivity |
| D. | To Increase the Discharge Capacity |
| Answer» D. To Increase the Discharge Capacity | |
| 10. |
Gibb’s module holds good for the standard design in which _________ |
| A. | Outlet index m = 2 and H/D = 1/7 |
| B. | Outlet index m = 1/3 and H/D = 1/7 |
| C. | Outlet index m = 5/3 and H/D = 1/7 |
| D. | Outlet index m = 2/3 and H/D = 1/7 |
| Answer» B. Outlet index m = 1/3 and H/D = 1/7 | |
| 11. |
What is the angle made by this off taking channel with parent channel? |
| A. | 15 degrees |
| B. | Zero degrees |
| C. | 20 degrees |
| D. | 10 degrees |
| Answer» C. 20 degrees | |
| 12. |
For canals carrying smaller water depths, a ramp is provided for the entry and exit as cattle crossings. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 13. |
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 | |
| 14. |
What is the range of modular outlet called? |
| A. | Minimum Modular Head |
| B. | Working Range |
| C. | Minimum Loss of Head |
| D. | Modular Ratio |
| Answer» C. Minimum Loss of Head | |
| 15. |
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 | |
| 16. |
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 | |
| 17. |
The canal escapes are safety valves that should be provided at regular intervals. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 18. |
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 | |
| 19. |
What is the other name for canal escape? |
| A. | Canal Outlet |
| B. | Escape |
| C. | Surplus Water Escape |
| D. | Canal Inlet |
| Answer» D. Canal Inlet | |
| 20. |
How many types of canal irrigation works are there? |
| A. | 5 |
| B. | 4 |
| C. | 6 |
| D. | 3 |
| Answer» B. 4 | |
| 21. |
What does the below diagram represent? |
| A. | Undesired Alignment of off taking Channel |
| B. | Parent Channel Carried Straight |
| C. | Off taking Channel making an angle with the Centre of Parent Channel |
| D. | Canal Outlet |
| Answer» C. Off taking Channel making an angle with the Centre of Parent Channel | |
| 22. |
The process of distribution of water from main canal to branches is termed as canal regulation. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 23. |
How many numbers of conditions of flow are to be followed while designing the cross regulator and head regulator? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| Answer» B. 3 | |
| 24. |
Choose the incorrect statement.i. Bed bars are constructed in canals at the toe of the canal lining to prevent slippage of the lining.ii. Cattle crossings also provide safety to cattle that are swept away by currents besides their usual function of helping the cattle to cross the canal.iii. A canal escape helps in supplying irrigation water to the downstream watercourses. |
| A. | i and ii |
| B. | i only |
| C. | ii only |
| D. | i, ii and iii |
| Answer» E. | |
| 25. |
How many types of submerged pipe outlets can be laid? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 26. |
What is the main purpose of the canal escape? |
| A. | To Maintain Uniform Flow in the Canal |
| B. | To Remove Surplus Water |
| C. | To Maintain Constant Velocity of the Flow |
| D. | To Help for Proper Hydraulic Jump |
| Answer» C. To Maintain Constant Velocity of the Flow | |
| 27. |
Which of the following is a reason for surplus water present in a canal? |
| A. | No Fall |
| B. | No Proper Hydraulic Jump |
| C. | No Proper Uniform Velocity of Flow |
| D. | Cultivators closing their outlets thinking their demand is over |
| Answer» E. | |
| 28. |
To ensure equitable distribution of water flexible and rigid modules are preferred. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 29. |
A baffle wall is a sort of weir constructed at the end of the cistern to:i. To prevent any excess amount of discharge likely to pass through the moduleii. The baffle plates are inserted in the eddy chamber sloping from the outer wall towards the inner walliii. Head up the water to its upstream to such a height that hydraulic jump is formedWhich of the following statement is correct? |
| A. | i only |
| B. | i and iii |
| C. | i and ii |
| D. | i, ii and iii |
| Answer» E. | |
| 30. |
What is the main drawback of standing wave flume? |
| A. | Loss of Hydraulic Jump |
| B. | Loss of Velocity of Flow |
| C. | Loss of Head |
| D. | Loss of Discharge |
| Answer» D. Loss of Discharge | |
| 31. |
What is the value of HL? |
| A. | Water Level of Water course |
| B. | Water Level of Distributary |
| C. | The Water Level of Distributary – Water Level of Water Course |
| D. | Discharge/Area |
| Answer» D. Discharge/Area | |
| 32. |
Scouring escapes have become obsolete because of? |
| A. | Piers |
| B. | Weir Walls |
| C. | Falls |
| D. | Silt Ejectors |
| Answer» E. | |
| 33. |
What is the other name given to weir type escape? |
| A. | Surplus Water Escape |
| B. | Venturi Flume |
| C. | Tail Escape |
| D. | Scouring Escape |
| Answer» D. Scouring Escape | |
| 34. |
What is the purpose of the regulator type escape? |
| A. | To Remove Excess Silt |
| B. | To Maintain Uniform Flow in the Canal |
| C. | To Perform Proper Hydraulic Jump |
| D. | For Distribution of Discharge for the Canals |
| Answer» B. To Maintain Uniform Flow in the Canal | |
| 35. |
The discharge through the open sluice is given by suppressed weir formula. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 36. |
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 | |
| 37. |
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 |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 38. |
Gibb’s module is a type of outlet which ensures constant discharge even if the water levels in the supply channel and watercourse fluctuate. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 39. |
What is the slope of a throat? |
| A. | From 0.5:1 to 1:1 |
| B. | From 1:1 to 3:1 |
| C. | From 1:1 to 2:1 |
| D. | From 1:3 to 1:2 |
| Answer» D. From 1:3 to 1:2 | |
| 40. |
How many main functions of a head regulator are? |
| A. | 4 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» E. | |
| 41. |
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 | |
| 42. |
Bed bars are used _______________i. To serve as permanent reference marksii. To correct alignment and theoretical bed levels of the canaliii. Helps in desilting the canal section during its maintenanceWhich of the following function of bed bars is/ are correct? |
| A. | i and ii |
| B. | i and iii |
| C. | ii and iii |
| D. | i, ii and iii |
| Answer» E. | |
| 43. |
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 | |
| 44. |
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. | |
| 45. |
What type of escape is preferred these days? |
| A. | Weir Type Escape |
| B. | Venturi Flume |
| C. | Regular Type Escape |
| D. | Tail Escape |
| Answer» D. Tail Escape | |
| 46. |
By using canal regulation works we can control discharges, depths, and velocities in the canals. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 47. |
The outlet should be cheap and with no moving parts. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 48. |
What is the formula for discharge, when standing wave flume is used? |
| A. | Q = 1.7 x B x H^3/2 |
| B. | Q = 1.7 x Cd x B x H^3/2 |
| C. | Q = 1.7 x Cd x B x H |
| D. | Q = 1.7 x Cd x H^3/2 |
| Answer» C. Q = 1.7 x Cd x B x H | |
| 49. |
What is the main purpose of the canal outlet? |
| A. | To Connect Head with a Minor Channel |
| B. | To Avoid Leakage |
| C. | To Avoid Exit Gradient |
| D. | For Proper Discharge |
| Answer» C. To Avoid Exit Gradient | |
| 50. |
Which structure in the entire network of canals is a link between the government and the cultivators? |
| A. | Weirs |
| B. | Falls |
| C. | Modules |
| D. | Canal Escapes |
| Answer» D. Canal Escapes | |