IRRIGATION ENGINEERING QUIZ

The uplift pressure on the roof of an inverted syphon, is maximum when

Canal is running with F.S.L.

Drain in running dry

Canal is running dry

Drain is running with H.F.L.

TRUE ANSWER : ?
YOUR ANSWER : ?

An outlet is said to be proportional if its flexibility, is

One

More than one

Less than one

Zero

TRUE ANSWER : ?
YOUR ANSWER : ?

Vertical drop fall is satisfactory for a height upto

3.5 m

1.5 m

0.5 m

5.0 m

TRUE ANSWER : ?
YOUR ANSWER : ?

In a canal syphon, the flow is

Pipe flow

With critical velocity

Under atmospheric pressure

Under negative pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

In India, which of the following is adopted as standard recording rain-gauge?

Natural siphon type

Weighing bucket type

Symon’s rain-gauge

Tipping bucket type

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as

water use efficiency

None of these

water application efficiency

water conveyance efficiency

TRUE ANSWER : ?
YOUR ANSWER : ?

The useful storage is the volume of water stored in the reservoir between

minimum pool level and normal pool level

river bed and minimum pool level

normal pool level and maximum pool level

minimum pool level and maximum pool level

TRUE ANSWER : ?
YOUR ANSWER : ?

The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is

only (i)

both (i) and (iii)

both (i) and (ii)

(i), (ii) and (iii)

TRUE ANSWER : ?
YOUR ANSWER : ?

Optimum depth of kor watering for rice is

165 mm

215 mm

135 mm

190 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

According to Lacey, in regime conditions

Neither (a) nor (b)

Both (a) and (b)

Entire cross-section of the channel is generated at all points by the forces normal to the

Silt is kept in suspension by vertical components of eddies

TRUE ANSWER : ?
YOUR ANSWER : ?

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