Rajasthan Polytechnic Third Year Paper 2016 – Irrigation Engineering

Rajasthan Polytechnic Third Year Paper 2016 – Irrigation Engineering

Necessity of irrigation when
(a) More rainfall
(b) Timely rainfall
(c) For cultivation of cash crop
(d) None of the above

For orchards field which irrigation method is use?
(a) Basin method
(b) Check method
(c) Border strip method
(d) Sprinkler method

An aggrading river is a
(a) Silting river
(b) Scouring river
(c) Both silting and scouring river
(d) Neither silting nor scouring river

As compared to gravity dam earthen dam
(a) costlier
(b) are less susceptible to failure
(c) require sound rock foundations
(d) require less skilled labour

Main cause of failures of earthen dam
(a) Hydraulic failures
(b) Seepage failures
(c) Structural failures
(d) None of the above

The major resisting force in a gravity dam is
(a) water pressure
(b) wave pressure
(c) self weight of the dam
(d) uplift pressure

The elementary profile of a dam is
(a) a rectangle
(b) a trapezoidal
(c) an equilateral triangle
(d) a right angled triangle

The flow of water after spilling over the weir crest in the chute and side channel spillway respectively ar
(a) at right angle and parallel to weir crest
(b) parallel and at right angle to weir crest
(c) parallel to weir crest in both
(d) at right angle to weir crest

Garret’s diagrams are based on
(a) Kennedy’s theory
(b) Lacey’s theory
(c) Khosla’s theory
(d) Bligh’s theory

A water shed canal
(a) irrigates only one side
(b) is most suitable in hilly areas
(c) avoids the cross drainage works
(d) is generally aligned to the contour of the area

A canal which is aligned at right angles to the contour is called
(a) contour canal
(b) water shed canal
(c) branch canal
(d) side-slope canal

As per Lacey’s theory the silt factor is
(a) directly proportional to average particle size
(b) inversely proportional to average particle size
(c) directly proportional to square root of average particle size
(d) not related to average particle size.