A. directly proportional to average par¬ticle size
B. inversely proportional to average par¬ticle size
C. directly proportional to square root of average particle size
D. not related to average particle size
Related Mcqs:
- Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be_________?
A. 19 m
B. 38m
C. 57m
D. 76m - Silt excluders are constructed on the________________?
A. river bed upstream of head regulator
B. river bed downstream of head regulator
C. canal bed upstream of head regulator
D. canal bed downstream of head regulator - The “outlet discharge factor” is the duty at the head of_________________?
A. main canal
B. branch canal
C. watercourse
D. distributory - The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be_________________?
A. 637 hectares/m3/sec
B. 837 hectares/m3/sec
C. 972 hectares/m3/sec
D. 1172 hectares/m3/sec - A multipurpose reservoir is the one which is_________________?
A. designed for one purpose but serves more than one purpose
B. planned and constructed to serve various purposes
C. both (A. and (B.
D. none of the above - Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as__________________?
A. low sodium water
B. medium sodium water
C. high sodium water
D. very high sodium water - Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas. Reason R : Rainfall gradient is steep. Select your correct answer according to the coding system given below ?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true - The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after_________________?
A. 50 years
B. 150 years
C. 200 years
D. 250 years - According to Khosla’s theory, the exit gradient in the absence of a downstream cutoff is_____________?
A. 0
B. unity
C. infinity
D. very large - Seepage through foundation in an earthen dam is controlled by providing___________________?
A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain
