Top 150+ Solved Irrigation Engineering MCQ Questions Answer
Q. If the critical shear stress of a channel is xc, then the average value of shear stress required to move the grain on the bank is
a. 0.5 xc
b. 0.75 TC
c. xc
d. 1.33 TC
Q. As per Lacey's theory, the silt factor is
a. directly proportional to average par¬ticle size
b. inversely proportional to average par¬ticle size
c. directly proportional to square root of average particle size
d. not related to average particle size
Q. Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey's theory will be
a. 19 m
b. 38m
c. 57m
d. 76m
Q. Which of the following canal structures is used to remove surplus water from an irrigationchannel into a natural drain ?
a. canal fall
b. canal outlet
c. canal escape
d. canal regulator
Q. For a proportional outlet, the flexibility is
a. zero
b. between zero and 1
c. 1
d. greater than 1
Q. Which of the following is a flexible outlet ?
a. submerged pipe outlet
b. Kennedy's gauge outlet
c. Gibb's outlet
d. none of the above
Q. A straight glacis type fall with a baffle platform and a baffle wall is called
a. vertical dropfall
b. glacis fall
c. Montague type fall
d. inglis fall
Q. Which of the following types of falls use parabolic glacis for energy dissipation ?
a. vertical drop fall
b. glacis fall
c. Montague type fall
d. inglis fall
Q. In a Sarda type fall, rectangular crest is used for discharge upto
a. 6 cumecs
b. 10 cumecs
c. 14 cumecs
d. 20 cumecs
Q. Which of the following can be used as a meter fall ?
a. vertical drop fall
b. flumed glacis fall
c. unflumed glacis fall
d. all of the above
Q. Which of the following canal outlets maintains a constant discharge ?
a. non-modular outlet
b. flexible outlet
c. rigid module
d. none of the above
Q. The ratio of rate of change of the discharge of an outlet to the rate of change of thedischarge of distributing channel is called
a. proportionality
b. flexibility
c. setting
d. sensitivity
Q. The drainage water intercepting the canal can be disposed of by passing the canal below thedrainage in
a. aqueduct and syphon aqueduct
b. aqueduct and super passage
c. super passage and canal syphon
d. level crossing