On This Page
This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 15
Q1 | The irrigation is necessary in an area
- where there is a scanty rainfall
- where the rainfall is non-uniform
- where commercial crops require more water
- all of the above
Q2 | The infertility of the soil in water-logged areas is due to
- inhibiting activity of the soil bacteria
- growth of weeds
- increasing of harmful salts
- all of these
Q3 | A canal outlet should
- be so designed that the farmer cannot temper with its functioning
- be simple so that it can be constructed or fabricated by local masons
- draw its fare share of silt carried by the distributing channel
- all of the above
Q4 | The moisture content of the soil, after free drainage has removed most of the gravity water, is known as
- field capacity
- saturation capacity
- wilting co-efficient
- available moisture
Q5 | A solid construction put across the river to raise its water level and divert the water into the canal, is known as
- marginal bund
- weir
- barrage
- dam
Q6 | The most economical section of a lined canal is
- rectangular section with circular bottom for small discharges
- triangular section with circular bottom for small discharges
- trapezoidal section with rounded corners for higher discharges
- none of the above
Q7 | A side slope canal, cross-drainage works are completely eliminated.
- Agree
- Disagree
Q8 | The hydrology helps in
- predicting maximum discharge
- deciding capacity of reservoir
- fore casting flood
- all of these
Q9 | A weir is generally aligned at right angle to the direction of the main river flow because
- it is economical
- less length of weir is required
- it gives better discharge capacity
- all of these
Q10 | A deflecting groyne in a river is
- inclined towards upstream
- perpendicular to bank
- inclined towards downstream
- none of these
Q11 | The method used for training of rivers is
- guide bank
- dyke or levee
- groyne
- all of these
Q12 | In a barrage, crest level is kept
- low with large gates
- high with large gates
- high with small gates
- low with small gates
Q13 | The process of loosing water from the leaves of plants, is termed as
- surface evaporation
- water surface evaporation
- transpiration
- precipitation
Q14 | A graph showing variations of discharge with time, at a particular point of a stream is known as
- mass inflow curve
- logistic curve
- hydrograph
- none of these
Q15 | The average duty for sugar-cane in hectares/cumec is
- 200
- 400
- 600
- 800
Q16 | When river flows in a plain country, its stage is known as
- delta
- boulder
- trough
- rocky
Q17 | In a syphon, the underside of the trough carrying drainage water is
- lower than
- higher than
- in level with
Q18 | A land is said to be water-logged when
- the air circulation is stopped in the root zone due to the rise in water table
- it is submerged in flood
- the doil pores within a depth of 40 cm are saturated
- all of the above
Q19 | The setting for a sub-proportional outlet is
- more
- less
- same
Q20 | The maximum rainfall during a short period measured in mm / hour is called mean annual rainfall.
- Agree
- Disagree
Q21 | The time (in days) that crop takes from the instant of its sowing to that of its harvest, is known as
- base
- crop
- kor
Q22 | The perimeter discharge (P-Q) relation is given by the equation
- P = 2.25 Q1/2
- P = 2.25 Q3/2
- P = 4.75 Q1/2
- P = 4.75 Q3/2
Q23 | Available moisture may be defined as the
- moisture content at permanent wilting point
- difference in water content of the soil between field capacity and permanent wilting
- maximum moisture holding capacity
- all of these
Q24 | Which of the following statement is correct?
- The gravity water is harmful to the crops.
- The hygroscopic water remains attached to the soil molecules by chemical bonds.
- The capillary water is utilised by the plants.
- all of the above
Q25 | The fall of moisture from the atmosphere to the earth surface in any form, is called
- evaporation
- transpiration
- precipitation
- none of these