Hydrology MCQ Questions Answers Civil Engineering

Hydrology MCQ Questions Answers – Civil Engineering (CE)


1) The % of earth covered by oceans is about

a) 31%

b) 51%

c) 71%

d) 97%

View Answer
Option – c)

2) The average annual rainfall over the whole of india is estimated as

a) 189 cm

b) 319 cm

c) 89 cm

d) 119 cm

View Answer
Option – d)

3) The percentage of total quantity of water in the world that is saline is about

a) 71%

b) 33%

c) 67%

d) 97%

View Answer
Option – d)

4) A rainfall with an intensity of 5 mm/h is classified as

a) traces

b) light rain

c) moderate rain

d) heavy rain

View Answer
Option – c)

5) Which is the odd one in the following ?

a) Snow

b) Sleet

c) Rain

d) Hail

View Answer
Option – c)

6) A plot between rainfall intensity versus time is called as

a) hydrograph

b) mass curve

c) hyetograph

d) isohyets

View Answer
Option – c)

7) Wind speed is measured with

a) a wind vane

b) a heliometers

c) Stevenson box

d) anemometer

View Answer
Option – d)

8) The average pan coefficient for the standard US Weather Bureau class A pan is

a) 0.85

b) 0.70

c) 0.90

d) 0.20

View Answer
Option – b)

9) Lysimeter is used to measure

a) infiltration

b) Evaporation

c) Evapotranspiration

d) Vapour pressure

View Answer
Option – c)

10) The science and practice of water flow measurement is known as

a) Hypsometry

b) Hydrometeorology

d) Fluvimetry

d) Hydrometry

View Answer
Option – d)

11) Calibration of a current meter for use, in channel flow measurement is done in a

a) wind tunnel

b) water tunnel

c) towing tank

d) flume

View Answer
Option – c)

12) When an accumulated mass of snow melts, the resulting flow entering a stream is classified as

a) direct runoff

b) base flow

c) subsurface flow

d) interflow

View Answer
Option – a)

13) A hydrograph is a plot of

a) rainfall intensity against time

b) stream discharge against time

c) cumulative rainfall against time

d) cumulative runoff against time

View Answer
Option – b)

14) A unit hydrograph has

a) one unit of peak discharge

b) one unit of rainfall duration

c) one unit of direct runoff

d) one unit of the time base of direct runoff

View Answer
Option – c)

15) Probability of a 10 year flood to occur at least once in the next 4 year is

a) 25%

b) 35%

c) 50%

d) 65%

View Answer
Option – b)

16) For a return period of 100 years the  Gumbel’s reduced variate yT is

a) -4.600

b) 4.600

c) 0.517

d) 1.2853

View Answer
Option – b)

17) Which of the following equation is used in hydrological flood routing ?

a) energy equation

b) continuity equation

c) equation of motion

d) both a and c

View Answer
Option – b)

18) In the Muskingum method of channel routing the weighing factor x can have a value

a) between -0.5 to 0.5

b) between 0.0 to 0.5

c) between 0.0 to 1.0

d) between – 1.0 to + 1.0

View Answer
Option – b)

19) The use of rational formula for estimating floods is limited to catchments of size less than

a) 5000 km2

b) 500 km2

c) 50 km2

d) 5 km2

View Answer
Option – c)

20) The flow-mass curve is an integral curve of

a) the hydrograph

b) the hyetograph

c) the flow duration curve

d) the S-curve

View Answer
Option – a)
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