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Free download in PDF Hydrology Multiple Choice Questions with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
61
If the slope of a line for infiltration capacity curve is 1/1.737, the value of constant k in Horton's equation of infiltration capacity curve, is
[A]
4.0
[B]
2.5
[C]
2.0
[D]
None of the above
62
If the grain size of soil increases
[A]
Water supply in well increases
[B]
Specific retention decreases
[C]
Surface area decreases
[D]
All the above
63
For determination of average annual precipitation in a catchment basin, the best method is
[A]
Isohyetal method
[B]
Thiessen's mean method
[C]
Arithmetical method
[D]
None of these
64
Burge formula Q = 19.6 (A/L2/3) cumecs is based upon
[A]
Drainage area and its shape
[B]
Rainfall and drainage area
[C]
Run off and drainage area
[D]
Drainage area
Answer: Drainage area and its shape
65
Humidity refers to
[A]
Moisture content of the air
[B]
Temperature of the air
[C]
Pressure of the air
[D]
Volume of the air
Answer: Moisture content of the air
66
Relative humidity is the ratio of actual vapour pressure to the saturation vapour pressure
[A]
In the atmosphere
[B]
At the same temperature
[C]
In the same volume
[D]
None of these
Answer: At the same temperature
67
For predicting floods of a given frequency, the best reliable method is
[A]
California method
[B]
Gumbel's analytical method
[C]
Unit hydrograph method
[D]
None of these
Answer: Unit hydrograph method
68
Pick up the correct statement from the following:
[A]
The water which exists in the zone of saturation, is called ground water
[B]
The zone above water table, is called zone of aeration
[C]
The zone below water table, is called zone of saturation
[D]
All the above
69
Phytometer method is generally used for the measurement of
[A]
Transpiration
[B]
Interception
[C]
Evaporation
[D]
None of these
70
If there are two canals taking off from each flank of a river, then there will be
[A]
Two divide walls and two under-sluices
[B]
Two divide walls and one under-sluice
[C]
One divides wall and two under-sluices
[D]
One divides wall and one under-sluice
Answer: Two divide walls and two under-sluices
71
Knowledge of hydrology is necessary for civil engineers for
[A]
Flood control works
[B]
Designing and construction of bridges and culverts
[C]
Designing and construction of irrigation structures
[D]
All the above
72
Knowledge of hydrology is necessary for civil engineers for
[A]
Flood control works
[B]
Designing and construction of bridges and culverts
[C]
Designing and construction of irrigation structures
[D]
All the above
73
Which of the following canal outlets maintains a constant discharge?
[A]
Rigid module
[B]
Non-modular outlet
[C]
Flexible outlet
[D]
None of the above
74
Pick up correct statement from the following:
[A]
The air from central portion of cyclone's gets lifted for causing precipitation
[B]
The air from outer portion of cyclones gets lifted for causing precipitation
[C]
The air from entire surface of the cyclones gets lifted for causing precipitation
[D]
None of those
Answer: The air from central portion of cyclone's gets lifted for causing precipitation
75
Sharp crested weirs are generally used
[A]
For large flows
[B]
For small flows
[C]
For streams carrying high sediment loads
[D]
For rivers carrying floating debris
76
A runoff river plant is
[A]
A low head scheme
[B]
A medium head scheme
[C]
A high head scheme
[D]
None of the above
Answer: A low head scheme
77
If the axial length of a drainage basin is 35 km and its form factor is 0.2, the total area of the basin is
[A]
245 sq. km.
[B]
205 sq. km.
[C]
225 sq. km.
[D]
None
78
If the loss due to friction in pipes is 4 m, the total losses in strainer and bends may be taken as
[A]
1.0 m
[B]
0.5 m
[C]
0.10 m
[D]
0.20 m
79
Horizontal acceleration due to earthquake results in
[A]
Hydrodynamic pressure
[B]
Inertia force into the body of the dam
[C]
Both (A) and (B)
[D]
None of the above
80
Water contains
[A]
Two hydrogen atoms and one oxygen atom
[B]
One hydrogen atom and one oxygen atom
[C]
Three hydrogen atoms and two oxygen atoms
[D]
One hydrogen atom and two oxygen atoms
Answer: Two hydrogen atoms and one oxygen atom
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