Irrigation Engineering Set 7

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This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 7

Q1 | A baffle wall is a sort of low weir constructed at the end of the cistern to
  • head up water to its upstream to such a height that hydraulic jump is formed
  • withstand the actual impact of the high velocity jet to dissipate the energy
  • both (a) and (b)
  • none of the above
Q2 | The function of a barrage is different to that a weir.
  • Correct
  • Incorrect
Q3 | The irrigation engineering may be defined as
  • the process of artificially supplying water to soil for raising crops
  • a science of planning and designing an efficient and economic irrigation system
  • the engineering of controlling and harnessing the various natural sources of water, by the construction of dams, canals and finally distributing the water to the agricultural fields
  • all of the above
Q4 | Liquid precipitation consists of
  • snow
  • hail
  • sleet
  • rainfall
Q5 | The main cause of silting in channel is
  • non-regime section
  • inadequate slope
  • defective head regulator
  • all of these
Q6 | Lacey's theory as applied to channel design, involves trial and error procedure.
  • Agree
  • Disagree
Q7 | The ratio between the area of a crop irrigated and the quantity of water required during its entire period of the growth, is known as
  • delta
  • duty
  • base period
  • crop period
Q8 | The loss of head per unit length of creep is called
  • coefficient of creep
  • percolation coefficient
  • Lane's coefficient
  • none of these
Q9 | The basic factor which controls the process of meandering is
  • discharge
  • valley slope
  • bed and side resistance
  • all of these
Q10 | In a flexible outlet, the discharge depends upon the
  • water level in distributary
  • water level in water course
  • difference of water levels between distributary and water course
  • none of the above
Q11 | A river meandering through an alluvial plain has a series of consecutive curves of reversed order connected with short straight sketches, is called
  • crossing
  • meandering belt
  • meandering length
  • none of these
Q12 | The water shed canal is also called
  • side slope canal
  • contour canal
  • ridge canal
  • all of these
Q13 | In an Inglis type fall, the baffle holds the jump stable on a horizontal platform.
  • Agree
  • Disagree
Q14 | The borrow pits should, preferably, be taken from
  • the field on the right side of canal
  • the field on the left side of the canal
  • the central half width of the section of the canal
  • any one of the above
Q15 | Rivers on alluvial plains may be
  • meandering type
  • aggrading type
  • degrading type
  • all of these
Q16 | A canal sligned nearly parallel to the contours of a country, is known as
  • side slope canal
  • contour canal
  • water shed canal
  • ridge canal
Q17 | The duty at outlet is called capacity factor.
  • Correct
  • Incorrect
Q18 | The duty is largest
  • at the head of the main canal
  • at the head of the water course
  • on the field
  • at all place
Q19 | The knowledge of hydrology is necessary in civil engineering for
  • designing and construction of irrigation structures
  • designing and construction of bridges and culverts
  • flood control works
  • all of these
Q20 | Nawab Jang Bahadur formula is used to estimate the flood discharge of American catchments
  • Right
  • Wrong
Q21 | For closed growing crops (such as wheat), the method of irrigation used is
  • free flooding
  • border flooding
  • check flooding
  • basin flooding
Q22 | The crest of the under-sluices should be lower than the crest of the head regulator (if silt excluder is provided by at least
  • 1 to 1.2 m
  • 1.8 to 2 m
  • 2 to 2.5 m
  • 4 to 5 m
Q23 | In Bligh's creep theory, it is assumed that the percolation water creep
  • along the contact of the base profile of the apron with the sub-soil
  • in a straight path under the floor
  • in a straight path under the foundation work
  • none of the above
Q24 | When the irrigation canal and the drain are at the same level, then the cross drainage work is achieved by providing a
  • aqueduct
  • super-passage
  • level crossing
  • canal syphon
Q25 | The amount of precipitation is measured by
  • rain gauge
  • osmoscope
  • turbidimeter
  • all of these