Irrigation Engineering Set 6

Civil Engineering

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This set of Irrigation Engineering Multiple Choice Questions & Answers (MCQs) focuses on Irrigation Engineering Set 6

Q1 | Interception losses are due toi) evaporationii) transpirationiii) stream flowThe correct answer is
Q2 | A 6 hours storm had 4 cm of rainfall and the resulting runoff was 2 cm. If
Q3 | Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?
Q4 | To determine the discharge at a section in a stream from its rating curve, the required data arei) slope of water surface at the sectionii) stage at the sectioniii) current meter readings at the section The correct answer is
Q5 | The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000)willbe
Q6 | The stream which does not have any base flow contribution is called
Q7 | The flow-mass curve is graphical representation of
Q8 | If the demand line drawn from a ridge in a flow mass curve does not intersect the curve again, it indicates that
Q9 | The shape of recession limb of a hydrograph depends upon
Q10 | Instantaneous unit hydrograph is a hydrograph ofi) unit durationii) unit rainfall excessiii) infinitely small durationiv) infinitely small rainfall excessThe correct answer is
Q11 | For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is
Q12 | A unit hydro graph has one unit of
Q13 | The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be
Q14 | To estimate the magnitude of a flood with a return period of T years, Gumbel's distribution method requires the following data pertaining to annual flood seriesi) mean valueii) standard deviationiii) length of recordiv) coefficient of skewThe correct answer is
Q15 | For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is
Q16 | If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be
Q17 | The crest level in a barrage is kept at a
Q18 | When the full supply level (F.S.L.) of the canal is much below the bed level of the drainage trough, then the cross drainage provided is called syphon aqueduct.
Q19 | A spoil bank is formed when the
Q20 | When the drain is over the canal, the structure provided is known as
Q21 | A levee on flood
Q22 | The primary cause of meandering is the excess of total charge during floods, when excess of turbulence is developed.
Q23 | In order to estimate the high flood discharge in fan-shaped catchment, the formula used is
Q24 | The capacity of escape channel should not be less than
Q25 | The whole period of cultivation from the time when irrigation water is first supplied for preparation of the ground to its last watering before harvesting, is called
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