Irrigation Engineering Set 13

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This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 13

Q1 | Lacey assumed a trapezoidal cross-section of a regime channel
  • Yes
  • No
Q2 | Lining of a canal
  • increases
  • decreases
  • does not effect
Q3 | The berms when fully formed
  • reduce the absorption losses and prevents leaks
  • protect the bank from erosion because of wave action
  • provide a scope for future widening the channel
  • all of the above
Q4 | The smooth entry, the regulators are aligned at an angle of
  • 60?
  • 80?
  • 110?
  • 130?
Q5 | Irrigation is supplementary to rainfall.
  • Agree
  • Disagree
Q6 | Trough stage of river is most suitable location for diversion head works.
  • Yes
  • No
Q7 | A useful soil moisture for plant growth is
  • capillary water
  • gravitational water
  • hygroscopic water
  • all of these
Q8 | An outlet in which the discharge depends upon the difference in level between the water levels in distributing channel and the water course, is known as
  • non-modular outlet
  • semi-module outlet
  • modular outlet
  • rigid module
Q9 | The river training works are adopted on a river
  • to pass high flood discharge safely and quickly through the breach
  • to direct and guide the river flow
  • to reduce bank erosion to a minimum
  • all of the above
Q10 | The science which deals with the measurement of water is called hydrometry.
  • TRUE
Q11 | The gap or margin of height, between full supply level (F.S.L.) and top of the bank is called
  • free board
  • dowel
  • inspection roadway
  • berm
Q12 | The optimum depth of kot watering is 19 cm for
  • wheat
  • sugar-cane
  • rice
  • cotton
Q13 | The width of meandering belt is the
  • transverse distance between the apex point of one curve and apex point on reverse curve
  • axial distance along the river between tangent point of one curve and tangent point of other curve of same order
  • axial distance along the river between the apex point of one curve and apex point on reverse curve
  • transverse distance along the river between tangent point of one curve and tangent point of other curve of same order
Q14 | The function of a scouring sluice is
  • to control the silt entry into the canal
  • to scour the silt deposited in the river bed above the approach channel
  • to pass the low floods without dropping the shutters of the main weir
  • all of the above
Q15 | In case of syphon aqueduct, the H.F.L. of the drain is
  • much below the bottom of the canal trough
  • much higher above the canal bed
  • in level with the canal bed
  • none of the above
Q16 | A canal head work in rocky stage of a river is not suitable because
  • more cross drainage works are required
  • a costly head regulator is required
  • more falls are necessary to dissipate the energy
  • all of the above
Q17 | Non-silting, non-scouring velocity is called
  • mean
  • critical
Q18 | Sprinklar irrigation is adopted for
  • level
  • uneven
  • hilly
Q19 | In a Sarda type fall, the trapezoidal crest is used for discharges over 14 m3/s.
  • Correct
  • Incorrect
Q20 | The flexibility of a sub-proportional outlet is less than one
  • Yes
  • No
Q21 | A part of water which will move out of the soil, if proper drainage is provided, is known as gravitational water.
  • TRUE
Q22 | In level crossing, the water level of canal is much higher than that of the drainage.
  • TRUE
Q23 | The length of groyne depends upon the magnitude of river training required.
  • Right
  • Wrong
Q24 | When the quantity of the earth is much in excess of the quantity required for filling, it has to be deposited in the form of spoil banks. The spoil banks are made on
  • the right side
  • the left side
  • both the sides
  • all of these
Q25 | Irrigation
  • increases
  • decreases