Tortuosity of a meandering river is the ratio of__________________?

A. Meander belt to meander length
B. Meander length to meander belt
C. Curved length along the channel to the direct axial length of the river reach
D. Direct axial length of the river reach to curved length along the channel

The main cause of meandering is________________?

A. Presence of an excessive bed slope in the river
B. Degradation
C. The extra turbulence generated by the excess of river sediment during floods
D. None of the above

A river training work is generally required when the river is_______________?

A. Aggrading type
B. Degrading type
C. Meandering type
D. Both (a) and (b)

Lining of irrigation channels________________?

A. Increases the waterlogging area
B. Decreases the waterlogging area
C. Does not change the water logging area
D. None of the above

The net speed under which the turbine reaches its peak efficiency is called_________________?

A. Design speed
B. Rated speed
C. Gross speed
D. Operating speed

The net head under which the turbine reaches its peak efficiency at synchronous speed is called________________?

A. Design head
B. Rated head
C. Gross head
D. Operating head

A hydroelectric scheme operating under a head of 80 m will be classified as_____________?

A. Low head scheme
B. Medium head scheme
C. High head scheme
D. None of the above

The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by_____________?

A. (0.99)10
B. 1 – (0.99)10
C. (0.9)’00
D. L-(0.9)100

Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?

A. Slope-area method
B. Area-velocity method
C. Moving boat method
D. Ultra-sonic method

The stream which does not have any base flow contribution is called________________?

A. Perennial stream
B. Intermittent stream
C. Ephemeral stream
D. None of the above