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Irrigation Engineering

Irrigation Engineering
The net speed under which the turbine reaches its peak efficiency is called

design speed
gross speed
rated speed
operating speed

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Irrigation Engineering
Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as

very high sodium water
medium sodium water
low sodium water
high sodium water

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Irrigation Engineering
An aggrading river is a

silting river
neither silting nor scouring river
both silting and scouring river
scouring river

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Irrigation Engineering
In Montague type fall

A straight glacis is provided
A circular glacis is provided
No glacis is provided
A parabolic glacis is provided

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Irrigation Engineering
In case of a trapezoidal notch fall

All listed here
Splay upstream from the notch section is 45°
Splay downstream from the notch section is 22½°
Top length of the piers should not be less than their thickness

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Irrigation Engineering
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

PLC/1000
PL/1000C
PC/100L
100 PLC

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