HYDROLOGY M.C.Q – CivilNotePpt

Hydrological Cycle and Rainfall – MCQ

1. An isohyet is a line joining point having

a) Equal evaporation value
b) Equal barometric pressure
c) Equal height above the MSL
d) Equal rainfall depth in a given duration

View Answer

d) Equal rainfall depth in a given duration

2. Water budget equation can be expressed as

a) Change in mass storage = mass outflow – mass inflow
b) Change in mass storage + mass outflow = mass inflow
c) Change in mass storage – mass outflow = mass inflow
d) Change in mass storage = mass inflow/mass outflow

View Answer

b) Change in mass storage + mass outflow = mass inflow

3. The catchment area of a river is bounded by

a) Contour line
b) Tributary of a river
c) Watershed line
d) None of these

View Answer

c) Watershed line

4. What type of rain gauge will you install in an inaccessible area during the rainy season

a) Symon type
b) Syphon type
c) Tipping bucket type
d) Weighing bucket type

View Answer

a) Symon type

5. A plot between rainfall intensity versus time is called as

a) Hydrograph
b) Mass curve
c) Hyetograph
d) Isohyet

View Answer

c) Hyetograph

6. The standard recording rain gauge adopted in India is of

a) Weighing bucket type
b) Natural siphon type
c) Tipping bucket type
d) Telemetry type

View Answer

c) Tipping bucket type

7. The hyetograph is a curve showing

a) Time vs. Accumulated rainfall
b) Time vs. Transpiration
c) Time vs. Intensity of rainfall
d) Time vs. Run-off from the catchment

View Answer

c) Time vs. Intensity of rainfall

8. The value of the run-off coefficient for commercial and industrial areas is

a) 0.3
b) 0.5
c) 0.9
d) None of these

View Answer

c) 0.9

Read More:

Water Demand – MCQ

Precipitation and its measurement – MCQ

5 Types of Rainfall

Precipitation And Its Measurement – MCQ Part 1

1. The lapse rate of temperature in the troposphere is

(a) – 4° C/km
(b) 6.5° C/km ✅
(c) 10° C/km
(d)1.3° C/km

2. Humidity is measured by a

(a) hygrometer ✅
(b) pyrheliometer
(c) hydrometer
(d) hectometer

3. Instruments to measure the speed of wind are called

(a) current meters
(b) anemometers ✅
(c) velocity meters
(d) None of these

4. When the density of snowfall is not known, it is usual to assume that water equivalent of snowfall as

(a) 10%
(b) 30%
(c) 50%
(d) 90% ✅

5. The average annual rainfall over the whole of India is estimated as

(a) 86 cm
(b) 203 cm
(c) 119 cm ✅
(d) 129 cm

6. The standard recording gauge adopted in India is of

(a) natural siphon type ✅
(b) weighing bucket type
(c) tipping bucket type
(d) telemetry type

7. The mass curve of a storm is a plot of

(a) accumulated rainfall intensity vs time
(b) accumulated precipitation vs time in chronological order ✅
(c) rainfall intensity vs time in chronological order
(d) accumulated annual rainfall of a stations vs accumulated annual rainfall of a group of stations.

8. A hyetograph is a plot of

(a) cumulative rainfall v/s time
(b) rainfall depth v/s duration
(c) evaporation rate v/s time
(d) rainfall intensity v/s time ✅

9. An Isohyet is line joining points having

(a) equal rainfall depth ✅
(b) equal height above a datum
(c) equal humidity
(d) equal intensities of solar radiation

10. The pressure of one bar is equal to

(a) 10 kPa
(b) 100 kPa ✅
(c) 1 kPa
(d) 1000 kPa