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This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 8
Q1 | Distributary head regulators are provided
- to control the supplies to the off-taking channel
- to control the silt entry in the off-taking canal
- to stop the supply, when not needed, in the off-taking canal
- all of the above
Q2 | Which of the following is a type of semi-module outlet?
- Submerged pipe outlet
- Open flume outlet
- Kennedy's gauge outlet
- all of these
Q3 | The opening in the weir wall with a crest at low level on the canal side is known as under sluice or scouring sluice.
- Correct
- Incorrect
Q4 | The optimum depth of kor watering for wheat in the plains of north India is
- 13.5 cm
- 16.5 cm
- 19 cm
- 21 cm
Q5 | The flexibility of a hyper-proportional outlet is
- greater than
- equal to
- less than
Q6 | In a proportional outlet, the rate of change of its discharge is
- equal to
- more than
- less than
Q7 | A weir fails due to
- rupture of floor due to uplift
- rupture of floor due to suction caused by standing wave
- scour on the upstream and downstream of the weir
- all of the above
Q8 | The average delta of rice crop is nearly
- 30 cm
- 60 cm
- 120 cm
- 150 cm
Q9 | The science which deals with the physical features and conditions of water on the earth surface is called
- hydrometry
- hydrography
- hydrosphere
- hydraulics
Q10 | A groyne with a curved head is known as
- hockey groyne
- burma groyne
- denehy groyne
- none of these
Q11 | The slope of a canal, for a discharge of 300 cumecs, should be
- 1 in 4000
- 1 in 6000
- 1 in 8000
- 1 in 10000
Q12 | The precipitation caused by natural rising of warmer lighter air in colder and denser surroundings, is called
- convective precipitation
- orographic precipitation
- cyclonic precipitation
- none of these
Q13 | The sensitivity of a rigid module is
- equal to zero
- less than unity
- equal to unity
- more than unity
Q14 | The Sarda canal has a
- glacis type fall
- vertical drop fall
- Ogee fall
- rapid fall
Q15 | When discharge of an outlet is independent of the water levels in the water course and the distributary, the outlet is termed as a
- flexible outlet
- non-modular outlet
- semi-module outlet
- rigid module
Q16 | For low navigation dams, the type of gate used is
- rolling gate
- bear trap gate
- vertical lift gate
- drum gate
Q17 | The coefficient of creep is the reciprocal of percolation coefficient.
- Right
- Wrong
Q18 | Cross regulators are provided
- to raise the water level to its upstream during the periods of low discharges in the parent channel
- to help in closing the supply to down stream of the parent channel
- to absorb fluctuation in various sections of the canal system
- all of the above
Q19 | The commonly used rain gauge is
- weighing bucket type
- tipping bucket type
- float type
- none of these
Q20 | Which of the following statement is wrong?
- In Kennedy's wilt theory, no account was taken of silt concentration and bed load.
- Kennedy did not gave any slope equation.
- In Kennedy's theory, silt grade and silt charge were not defined.
- none of the above
Q21 | The sensitivity of an outlet is defined as the ratio of the
- rate of change of discharge of an outlet to the rate of change of discharge of the distributing channel
- rate of change of discharge of an outlet to the rate of change in level of the distributing surface, referred to normal depth of the channel
- depth of the sill or the crest level of the module below the full supply of the distributing channel to the full supply depth of the distributing channel
- head recovered to the head put in an outlet
Q22 | Crop ratio is the ratio of area irrigated
- in Rabi season to Kharif season
- in Kharif season to Rabi season
- under perennial crop to total crop
- under perennial crop to non-perennial crop
Q23 | The depth of root zone is 90 cm for
- wheat
- sugar cane
- rice
- cotton
Q24 | A parabolic glacis type fall is commonly known as
- Montague fall
- Inglis fall
- Sarda fall
- vertical type fall
Q25 | For Madras catchments, the flood discharge is estimated from Q = CA2/3. This formula is known as
- Dicken's formula
- Ryve's formula
- Nawab Jang Bahadur formula
- Inglis formula