Irrigation Engineering Practice Test 1

1. A crop is being tested in the lab to its loss due to transpiration. Given that initial weight of instrument is 100 kgs, and final mass of instrument is 150 kgs. The amount of water added during full growth of plant is 70 kgs. Find the loss due transpiration when the method used is phytometer method?

20 kgs

10 kgs

15 kgs

25 kgs

2. What type of irrigation scheme uses pick-up weir?

Direct Irrigation

Perennial Irrigation

Combined System

Storage Irrigation

3. What is water conveyance efficiency?

The ratio of water used beneficially and the water delivered to the field

The ratio of water stored in the root zone and the water delivered to the field

The ratio of water stored in the root zone and the water needed before irrigation

The ratio of the quantity of water delivered to the field and quantity of water pumped into the canal

4. Which of the following is not an empirical method of determining consumptive use?

Hargreaves method

Penman’s equation

Lowry Johnson method

Inflow-outflow method

5. An outlet irrigates an area of 40 ha. The discharge required at this outlet to meet the evapotranspiration requirement of 40 mm occurring uniformly in 40 days neglecting other field losses is _________

4.52 litres / sec

2.31 litres / sec

4.01 litres / sec

1.52 litres / sec

6. For clayey soils, the depth of root-zone is less.

False

True

7. Which type of area is large in quantity compared to others?

Culturable Cultivated Area

Culturable Commanded Area (C.C.A)

Gross Commanded Area (G.C.A)

Culturable Uncultivated Area

8. Which Indian state is Worlds first organic state?

Punjab

Arunachal Pradesh

Sikkim

Assam

9. Irrigation from wells is what type of irrigation system?

Tank Irrigation

Direct Irrigation

Flow Irrigation

Lift Irrigation

10. The presence of excess salts in the soil requires _____________

high water use efficiency

high water storage efficiency

low water storage efficiency

high water application efficiency