Q. Gibb’s module is a type of outlet which ensures constant discharge even if the water levels in the supply channel and watercourse fluctuate.

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Q. The outlet discharge is maintained constant and it is not at all dependent on the water levels in the parent and the field channels in _________________

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Q. Choose the incorrect statement.

i. Bed bars are constructed in canals at the toe of the canal lining to prevent slippage of the lining.
ii. Cattle crossings also provide safety to cattle that are swept away by currents besides their usual function of helping the cattle to cross the canal.
iii. A canal escape helps in supplying irrigation water to the downstream watercourses.

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Q. The discharge range of Gibb’s module varies from ____________

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Q. Which of the following is not a type of rigid module?

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Q. For a wide trapezoidal channel, the channel index is ______

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Q. Choose the incorrect advantage of AOSM.

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Q. The principal feature of an ASOM is similar to those of a flume regulator.

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Q. An irrigation outlet is said to be proportional, when its ______________

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Q. The only irrigation semi-module through which the discharge is not proportional to H1/2 where H is the head causing flow through the module is _____________

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Q. Calculate the discharge through an open flume outlet for the following data:

Coefficient of discharge = 1.71
Width of the throat = 0.15 m
Head over the crest measured from FSL of distributary = 1.8 m

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Q. The proportionality of APM was sacrificed to enable the outlet to carry higher silt charge by increasing the setting to 8/10.

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Q. Calculate the minimum modular head loss involved in ASOM if the head measured from the upstream water level in the distributary is 1.5 m and the width of the throat as 0.16 m.

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Q. Which module is mostly adopted and is considered to be the best of all the modules?

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Q. Calculate full supply discharge for a free pipe outlet for the following data:

Head on the upstream side above the centre line of pipe = 0.55 m
Coefficient of discharge = 0.62
The diameter of the pipe = 25 cm

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Q. Which of the following is the simplest and the oldest type of a flexible outlet?

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Q. Which of the following is not a type of semi-modules?

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Q. What is the value of HL?

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Q. To ensure the modularity of the modular outlet what should be maintained?

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Q. What is the range of modular outlet called?

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