Irrigation Engineering
To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood series
i) mean value
ii) standard deviation
iii) length of record
iv) coefficient of skew
The correct answer is

(i),(ii) and (iii)
(i) and (ii)
(i), (ii) and (iv)
(i), (ii), (iii) and (iv)

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Irrigation Engineering
A water-logged land is found suitable for cultivation due to

Absence of aeration of soil from root zone of the plant
None of these
Ease of tillage for preparation of the field for optimum condition of germination
Regular supply of water to plants from the water table by capillary action

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Irrigation Engineering
Lane's weighted creep theory assumes

Double weightage to horizontal creep and one weightage to vertical creep
Triple weightage to horizontal creep and one weightage to vertical creep
Equal weightage to horizontal and vertical creeps
Triple weightage to vertical creep and one weightage to horizontal creep

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Irrigation Engineering
A divide wall is provided

Parallel to the axis of weir and downstream of it
Parallel to the axis of weir and upstream of it
At an inclination to the axis of weir
At right angle to the axis of weir

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