Civil Engineering

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) weather cocks
(d) velocity meters

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 

12. The standard recording gauge adopted in India is of 
(a) natural siphon type
(b) weighing bucket type
(c) tipping bucket type 
(d) telemetry type

18. 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. 

19. 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

20. 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 

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