IRRIGATION ENGINEERING QUIZ

The scour depth D of a river during flood, may be calculated from the Lacey's equation

D = 0.47 (Q/f)1/3

D = 0.47 (Q/f)2/3

D = 0.47 (Q/f)

D = 0.47 (Q/f)1/2

TRUE ANSWER : ?
YOUR ANSWER : ?

The water utilizable by plants is available in soils mainly in the form of

chemical water

hydroscopic water

gravity water

capillary water

TRUE ANSWER : ?
YOUR ANSWER : ?

Lining of irrigation channels

decreases the waterlogging area

None of these

increases the waterlogging area

does not change the water logging area

TRUE ANSWER : ?
YOUR ANSWER : ?

If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is

PL/1000C

PC/100L

PLC/1000

100 PLC

TRUE ANSWER : ?
YOUR ANSWER : ?

The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of

same and longer duration

same duration only

same and shorter duration

any duration

TRUE ANSWER : ?
YOUR ANSWER : ?

As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at

lower level

higher level

any of the above depending on the design

same level

TRUE ANSWER : ?
YOUR ANSWER : ?

For diversion of flood water of rivers, the type of canal constructed, is

Inundation canal

Perennial canal

Canal

Ridge canal

TRUE ANSWER : ?
YOUR ANSWER : ?

Tortuosity of a meandering river is always

less than 1

greater than 1

less than or equal to 1

equal to 1

TRUE ANSWER : ?
YOUR ANSWER : ?

A runoff river plant is

a medium head scheme

a high head scheme

a low head scheme

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

With the increase in the quantity of water supplied, the yield of most crops

increases upto a certain limit and then decreases

increases continuously

increases upto a certain limit and then becomes constant

decreases continuously

TRUE ANSWER : ?
YOUR ANSWER : ?

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