Questions and answers for exam Preparation

MCQs

Total Questions : 440 | Page 5 of 44 pages

Question 41. If the viscosity of ground water is 1.00, the Slitcher's constant is 400, the effective size of soil particles in acquifer is 0.5 mm and hydraulic gradient is 1 in 80, the velocity of flow is

0.25 m/day
0.50 m/day
0.75 m/day
1.25 m/day.

Discuss Question

Answer: Option D. -> 1.25 m/day.
Answer: (d).1.25 m/day.

Question 42. Hydrology helps in

predicting maximum flows
deciding the minimum reservoir capacity
forecasting the availability of quantity of water at reservoir site
all the above.

Discuss Question

Answer: Option D. -> all the above.
Answer: (d).all the above.

Question 43. Unit Hydrograph theory was enunciated by

Merril Bernard
W.W. Horner
Le-Roy K. Shermen
Robert E. Horten.

Discuss Question

Answer: Option C. -> Le-Roy K. Shermen
Answer: (c).Le-Roy K. Shermen

Question 44. The theory of infiltration capacity was given by

Merrill Bernard
W.W. Horner
Le-Roy K. Shermen
Robert E. Horten.

Discuss Question

Answer: Option D. -> Robert E. Horten.
Answer: (d).Robert E. Horten.

Question 45. Water contains

one hydrogen atom and one oxygen atom
two hydrogen atoms and one oxygen atom
one hydrogen atom and two oxygen atoms
three hydrogen atoms and two oxygen atoms

Discuss Question

Answer: Option B. -> two hydrogen atoms and one oxygen atom
Answer: (b).two hydrogen atoms and one oxygen atom

Question 46.

The elevation Z of the watershed is : (where letters carry their usual meanings)

reduced level of the top most point of the basin
reduced level of the lower most point of the basin
average elevation of the highest and lowest point of the drainage basin
obtained by the formula ` Z = (a_1z_1 + a_2z_2 + a_3z_3 + a_nz_n)/(A)`

Discuss Question

Answer: Option D. -> obtained by the formula ` Z = (a_1z_1 + a_2z_2 + a_3z_3 + a_nz_n)/(A)`

Question 47.
If P and A are the perimeter and area of a drainage basin, its compactness coefficient, is

`(P^2)/(2 pi A)`
`(P)/(2 pi A)`
`(P)/(2sqrt( pi A))`
`(P^3)/( pi^3 A)`

Discuss Question

Answer: Option C. -> `(P)/(2sqrt( pi A))`

Question 48.

The equation`V = (1000 I D_10^2)/(60) xx (1.8 T + 42)` which is used for determining the velocity of ground water flow in metres per day is known as

Meinzer's formula
Slichter's formula
Darcy's formula
Hazen formula.

Discuss Question

Answer: Option D. -> Hazen formula.

Question 49.

Izzard formula for the time of concentration in minutes for the plots having no channels, is (where L_o is the length of overland flow in metres and Kp rainfall intensity in cm/hour)