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Lining of Irrigation Canals Online Exam Quiz

Important questions about Lining of Irrigation Canals. Lining of Irrigation Canals MCQ questions with answers. Lining of Irrigation Canals exam questions and answers for students and interviews.

Irrigation water is a costly commodity.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

What type of losses can be mainly avoided by lining the canals?

Options

A : a. Evaporation Losses

B : b. Seepage Losses

C : c. Erosion of Canal Bed

D : d. Discharge Losses at Branch Canals

What is the name given to the land unfit for agriculture due to waterlogging?

Options

A : a. Desert

B : b. Tundra

C : c. Waterlogged Area

D : d. Thur

Lining of canals can bring high areas under command.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Design a lined canal carrying a discharge of 20 cumecs. The slope is 1 in 7000. Assume suitable values for side slopes and lining.

Options

A : a. Side Slope = 1.2: 1, Depth = 4.4 m

B : b. Side Slope = 1.4: 1, Depth = 4.1 m

C : c. Side Slope = 1.5: 1, Depth = 3.77 m

D : d. Side Slope = 1.3: 1, Depth = 4.5 m

Design a lined canal to carry a discharge of 400 cumecs and slope is 1 in 6000. Take side slopes as 1 : 1 and rugosity constant as 0.012. Assume limiting velocity as 3 m/sec.

Options

A : a. Total Depth = 6.3 m, Bed Width = 15 m

B : b. Total Depth = 6.28 m, Bed Width = 14.2 m

C : c. Total Depth = 6.5 m, Bed Width = 14 m

D : d. Total Depth = 6.25 m, Bed Width = 14.4 m

Depending on what factor does the lining of a canal can increase the capacity of the canal?

Options

A : a. Width of the Canal

B : b. Type of Flow

C : c. Velocity

D : d. Side Slope

Mathematically, depending on what factor we can say velocity increases the capacity of the canal?

Options

A : a. Coefficient of Viscosity

B : b. Coefficient of Capillarity

C : c. Coefficient of Roughness

D : d. Coefficient of Resistance

What type of major dangers can the lining of canals extinguish?

Options

A : a. Leakages

B : b. Floods

C : c. Water-logging

D : d. Seepage Losses

What costs are reduced with the help of lining a canal?

Options

A : a. A.R and M.O Costs

B : b. Irrigation Water Costs

C : c. Construction Costs

D : d. Transportation Costs

A lined canal costs about 2 to 2.5 times as much as the unlined canal.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Which of the following is not an advantage of the lining of the canal?

Options

A : a. Seepage control

B : b. Prevention of water-logging

C : c. Increase in channel capacity

D : d. Increased maintenance costs

The capacity of the channel is a function of velocity.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

What is the range of value of Manning’s coefficient for straight alignment for cast in-situ concrete lining?

Options

A : a. 0.012 – 0.015

B : b. 0.015 – 0.018

C : c. 0.018 – 0.020

D : d. 0.020 – 0.025

Lining decreases the channel capacity and consequently reduces the required channel section.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Removal of silt considerably reduces the annual expenditure required on unlined channels for desilting.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

What types of channel sections are usually adopted?

Options

A : a. Triangular and Circular channel

B : b. Triangular and Trapezoidal channel

C : c. Rectangular and Trapezoidal channel

D : d. Rectangular and Triangular channel

What is the maximum permissible velocity in Cement concrete lining (Unreinforced) as per Indian Standards?

Options

A : a. 2 to 2.5 m/sec

B : b. 1.5 to 2 m/sec

C : c. 1.2 to 1.8 m/sec

D : d. 1.5 to 2.5 m/sec

What is the minimum value of free-board for Main and Branch Lined canals if the discharge is more than 10 cumecs as per specified by BIS code?

Options

A : a. 0.60

B : b. 0.50

C : c. 0.75

D : d. 0.30

What is the minimum value of inspection bank width recommended by Indian Standards if the discharge is more than 30 cumecs?

Options

A : a. 8.0

B : b. 5.0

C : c. 6.0

D : d. 7.0

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