Hydrology and Ground Water

191. Tortuosity of a meandering river is the ratio of

1. Meander belt to meander length
2. Meander length to meander belt
3. Curved length along the channel to the direct axial length of the river reach
4. Direct axial length of the river reach to curved length along the channel

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192. Unit Hydrograph theory was enunciated by

1. Merril Bernard
2. W.W. Horner
3. Le-Roy K. Shermen
4. Robert E. Horten

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193. Which of the following canal outlets maintains a constant discharge?

1. Non-modular outlet
2. Flexible outlet
3. Rigid module
4. None of the above

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194. Vertical drop fall is satisfactory for a height upto

1. 0.5 m
2. 1.5 m
3. 3.5 m
4. 5.0 m

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195. Water is useful for

1. Running hydroelectric turbines
2. Floating the boats and ships
3. Providing steam for running locomotives
4. All the above

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196. When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the permeability of the soil, is

1. 0.0005 cm/sec
2. 0.001 cm/sec
3. 0.002 cm/sec
4. 0.01 cm/sec

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197. When the reservoir is full, the maximum compressive force in a gravity dam is produced

1. At the toe
2. At the heel
3. Within the middle third of base
4. At centre of base

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198. Which of the following can be used as a meter fall?

1. Vertical drop fall
2. Flumed glacis fall
3. Unflumed glacis fall
4. All of the above

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