The relation between probability (P) and recurrence interval (T) is given by_________________?

Related Mcqs:

1. The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by_____________?

   A. (0.99)10
   B. 1 – (0.99)10
   C. (0.9)’00
   D. l-(0.9)100

2. The meander pattern of a river is developed by_________________?

   A. average discharge
   B. dominant discharge
   C. maximum discharge
   D. critical discharge

3. The uplift pressure on a dam can be controlled by_________________?

   1) constructing cutoff under upstream face
   2) constructing drainage channels bet-ween the dam and its foundation
   3) by pressure grouting in foundation
   The corret answer is?
   A. only (1)
   B. both (1) and (2)
   C. both (1) and (3)
   D. (1), (2) and (3)

4. If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by_______________?

   A. T = kd
   B. T = k/d
   C. T= Vkd
   D. k= VTd

5. The area between the isohyets 45 cm and 55 cm is 100 square km and between 55 cm and 65 cm is 150 square km. The average depth of annua! precipitation over the above basin of 250 square km will be__________________?

   A. 50 cm
   B. 55 cm
   C. 56 cm
   D. 60 cm

6. 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

7. The minimum size of stone that will remain at rest in a channel of longitudinal slope S and hydraulic mean depth R is given by______________?

   A. 4RS
   B. 11 RS
   C. 7RS
   D. 15 RS

8. The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called_________________?

   A. hygroscopic water
   B. equivalent moisture
   C. soil moisture deficiency
   D. pellicular water

9. If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?

   A. 15 minutes
   B. 20 minutes
   C. 30 minutes
   D. 60 minutes

10. The water utilizable by plants is available in soils mainly in the form of________________?

    A. gravity water
    B. capillary water
    C. hydroscopic water
    D. chemical water