Practice test

Hydrology - Test Set 3

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Muskingham method of flood routing is ?
    1. Reservoir routing method
    2. Hydraulic method of flood routing
    3. Channel routing method
    4. None
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  2. Question 2

    A direct runoff hydrograph due to a storm idealized into a triangular shape has a peak flow rate of 60 m3/s occurring at 25 hours from its start. If the base width of this hydrograph is 72 hours, and the catchment area is 777.6 km2, the runoff from the storm is
    1. 1 cm
    2. 10 cm
    3. 5 cm
    4. 2 cm
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  3. Question 3

    Which of the following method is widely used in India for the computation of consumptive use?
    1. Penman's equation
    2. Tanks and Lysimeter
    3. Blaney - Criddle equation
    4. None of the above
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  4. Question 4

    A watershed got transformed from rural to urban over a period of time. The effect of urbanization on storm runoff hydrograph from the watershed is to?
    1. Decrease the volume of runoff
    2. Increase the time to peak discharge
    3. Decrease the time base
    4. Decrease the time base
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  5. Question 5

    Which one of the following points should be kept in mind while selecting the site for a rain gauge station?
    1. The site where a rain gauge is set up should be close to a meteorological observatory.
    2. The rain gauge should be on the top of a hill.
    3. A fence, if erected to protect the rain gauge from cattle etc. should be located within twice the height of the fence
    4. The distance between the rain gauge and the nearest object should be at least twice the height of the object.
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  6. Question 6

    Rainfall with an intensity of 6 mm/h is classified as:
    1. light rain
    2. heavy rain
    3. moderate rain
    4. Trace rain
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  7. Question 7

    Hygrometer is used for estimating:
    1. specific gravity of a liquid
    2. capillary potential of soil water
    3. water content of soil
    4. water vapour content of air
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  8. Question 8

    During a storm, the rates of rainfall observed at a frequency of 15 min for one hour are 12.5, 17.5, 22.5 abd 7.5 cm/h. If the phi-index is 7.5 cm/h, then the total run-off will be
    1. 22.50
    2. 7.50
    3. 15.00
    4. 30.00
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  9. Question 9

    If area of the catchment is 62.5 sq.mm and axial length of the catchment is 10 mm, the form factor will be:
    1. 0.625
    2. 0.31
    3. 6.25
    4. 1
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  10. Question 10

    How much of the total amount of power developed world wide consists of hydro power plant?
    1. 10%
    2. 20%
    3. 30%
    4. 40%
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  11. Question 11

    The percentage of total rainfall that becomes runoff is known as:
    1. Infiltration rate
    2. Runoff coefficient
    3. Drainage density
    4. Hydrostatic value
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  12. Question 12

    In a humid region, the dominant component of runoff is:
    1. Baseflow
    2. Overland flow
    3. Throughflow
    4. Channel storage
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  13. Question 13

    The term “hydraulic conductivity” refers to:
    1. Ability of aquifer to store water
    2. Water table gradient
    3. Rate at which water moves through soil
    4. Depth of saturated zone
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  14. Question 14

    The ratio of void space to total volume of soil or rock is called:
    1. Permeability
    2. Porosity
    3. Saturation
    4. Field capacity
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  15. Question 15

    The circularity ratio of a drainage basin helps understand:
    1. Elevation change
    2. Soil infiltration
    3. Basin shape and flood potential
    4. Aquifer storage
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  16. Question 16

    Which tool is most frequently used to calculate the rate at which water evaporates in a certain area?
    1. Evaporation pan
    2. Anemometer
    3. Pyranometer
    4. Lysimeter
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  17. Question 17

    Which of the following techniques is NOT commonly employed for calculating evaporation?
    1. Eddy covariance method
    2. Tipping bucket method
    3. Bowen ratio method
    4. Water budget method
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  18. Question 18

    Which of the following is a primary application of hydrology in urban planning?
    1. Wind speed analysis
    2. Flood risk management
    3. Soil fertility assessment
    4. Earthquake hazard mitigation
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  19. Question 19

    Which organization focuses on maritime education and research in India?
    1. CDO
    2. NIH
    3. Hydrology Project Division
    4. MERI
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  20. Question 20

    Which organization is responsible for monitoring and managing river basins in India?
    1. IMD
    2. CDO
    3. NIH
    4. CWC
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