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This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 10
Q1 | Gibb's module is a type of
- non-moduler outlet
- semi-modular outlet
- rigid modular outlet
- upon flume outlet
Q2 | A hydrograph representing one cm of run off from a rainfall of some unit duration and specific area distribution is known as
- hyetograph
- flood hydrograph
- unit hydrograph
- S-hydrograph
Q3 | The duty of a crop is 432 hectares per cumec when the base period of the crop is 100 days. The delta for the crop will be
- 100
- 200
- 432
- 864
Q4 | The first watering before sowing the crop, is known as
- kor watering
- paleo
- delta
- none of these
Q5 | The measure adopted to reclaim the water-logged area is
- installation of lift irrigation schemes
- lining of canals
- lowering the full supply level
- all of these
Q6 | Water logging is caused due to
- inadequate drainage facilities
- over irrigation
- presence of impermeable strata
- all of these
Q7 | In Sarda type fall, the length of the crest is kept
- more than
- equal to
- less than
Q8 | In a super-passage, the F.S.L. of the canal is
- lower than the underside of the trough carrying drainage water
- above the bed level of the drainage trough
- in level with the drainage trough
- none of the above
Q9 | Which of the following statement is correct?
- In free flooding, the field is divided into a number of small sized plots which are pratically level.
- In border strip method, the strips are separated by low levels.
- In furrow irrigation, the water is admitted between the rows of plants in the field.
- all of the above
Q10 | The total depth of water required by a crop during the entire period the crop is in the field, is known as
- delta
- duty
- base period
- crop period
Q11 | A canal aligned at right angles to the contour of a country, is known as
- side slope canal
- contour canal
- water shed canal
- branch canal
Q12 | A hydraulic jump is formed when
- a sub-critical flow strikes against a super-critical flow
- a super-critical flow strikes against a sub-critical flow
- the two flows of super-critical velocity meet each other
- the two flows of sub-critical velocity meet each other
Q13 | When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the under side of the supporting structure, the structure provided is super-passage.
- Correct
- Incorrect
Q14 | According to Kennedy, the silt supporting power is
- directly proportional to
- inversely proportional to
Q15 | Which of the following statements is correct?
- The aggrading type of river builds up its bed to a certain slope.
- The degrading type of river looses its bed gradually in the form of sediment load of the stream.
- The pattern of meander is altered by variation in discharge slope and bed forming material
- all of the above
Q16 | A part of water which exists in the porous space of the soil by molecular attraction, is known as
- capillary water
- gravitational water
- hygroscopic water
- all of these
Q17 | For a discharge of 4m3/s in Sarda type fall,
- rectangular
- trapezoidal
Q18 | A contour canal
- is most suitable in hilly areas
- irrigates only on one side
- is aligned parallel to the contour of the country
- all of the above
Q19 | Kennedy, in his silt theory, assumed that the silt is kept in suspension because of eddies generated from the
- bed only
- sides only
- whole perimeter
- any one of these
Q20 | When an oven-dried sample of soil is kept open in the atmosphere, it absorbs some amount of water. This water is known as
- capillary water
- gravitational water
- hygroscopic water
- all of these
Q21 | The level of a canal diversion head work depends upon
- discharge perimeter
- pond level
- full supply level of canal
- all of these
Q22 | An outlet is said to be proportional, if its flexibility is
- equal to zero
- less than unity
- equal to unity
- more than unity
Q23 | The weed growth in a canal leads to
- decrease in silting
- decrease in discharge
- increase in discharge
- increase in velocity of flow
Q24 | Sandy soils with good drainage become impermeable after prolonged use, if it is irrigated with a water containing
- 25%
- 50%
- 75%
- 85%
Q25 | The ratio of the rate of change of discharge of an outlet to the rate of change of the discharge of the distributing channel, is termed as
- proportionality
- flexibility
- sensitivity
- efficiency