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# Well Hydraulics Online Exam Quiz

Important questions about Well Hydraulics. Well Hydraulics MCQ questions with answers. Well Hydraulics exam questions and answers for students and interviews.

### Which of the following test is commonly adopted for determining soil permeability of soil formations?

Options

A : a. Pumping-in test and Pumping-out test

B : b. Horizontal capillary test

C : c. None of the mentioned

D : d. All of the mentioned

### The value of specific yield SY, of an aquifer depends on ___________

Options

A : a. Grain size

B : b. Compaction of stratum

C : c. Grain shape

D : d. All of the mentioned

### Specific yield of unconfined aquifer indicates __________

Options

A : a. Water capacity

B : b. Volume of water

C : c. Water retained

D : d. All of the mentioned

### Dupuit’s theory was later modified by _________

Options

A : a. Thiem

B : b. Darcy

C : c. Alam Singh

D : d. Louden

### The parabolic depression in the aquifer is called as __________

Options

A : a. Cone of depression and Drawdown curve

B : b. Parabolic curve

C : c. None of the mentioned

D : d. All of the mentioned

### In most of the confined aquifers, the value of storage coefficient ranges between __________

Options

A : a. 0.05 to 0.0005

B : b. 0.5 to 0.005

C : c. 0.00005 to 0.005

D : d. 0 to 5

### Which of the following is depicted by Dupuit’s theory?

Options

A : a. The velocity of flow

B : b. Co-efficient of transmissibility

C : c. Radial flow of water

D : d. Volume of aquifer

Options

A : a. T=b k

B : b. T=b/k

C : c. T=(b k)2

D : d. T=k/b

### According to Dupuit’s theory,the velocity of flow is proportional to__________

Options

A : a. Sine of hydraulic gradient

B : b. Tangent of hydraulic gradient

C : c. None of the mentioned

D : d. All of the mentioned

### Dupuit’s theory states that, the Darcy’s law equation is not valid near_________

Options

A : a. Well face

B : b. Top Surface of well

C : c. Sides of the well

D : d. All of the mentioned

### The specific yield S? is given by _______

Options

A : a. (Vwy+V)*100

B : b. (Vwy-V)*100

C : c. (Vwy/V)*100

D : d. (Vwy*V)*100

### The value of specific yield depends upon the shape of the pores.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

### The specific retention SR is given by _______

Options

A : a. (VwR+V)*100

B : b. (VwR-V)*100

C : c. (VwR/V)*100

D : d. (VwR*V)*100

Options

A : a. n= SR-S?

B : b. n= SR+S?

C : c. n= SR*S?

D : d. n= SR/S?

### In the storage coefficient, the unit change in the component of the head is measured in _________ to the surface.

Options

A : a. normal

B : b. tangential

C : c. radial

D : d. inclined at 30°

### The coefficient of transmissibility is defined as the rate of flow of water through a horizontal strip of unit width and full saturation height under unit hydraulic gradient.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

Options

A : a. T=bk

B : b. T=b/k

C : c. T=b+k

D : d. T=b-k

### The drawdown, corresponding to a steady discharge, are observed at a number of wells in _______

Options

A : a. pumping out test

B : b. pumping in test

C : c. constant head permeability test

D : d. falling head permeability test

### The formula for the pumping out test in an unconfined aquifer is given by _________

Options

A : a. $$k=\frac{q?}{1.36(H^2-h^2)}log_{10}\frac{R}{r}$$

B : b. $$k=\frac{q}{1.36(H^2-h^2)}log_{10}\frac{R}{r}$$

C : c. $$k=\frac{q}{?(H^2-h^2)}log_{10}\frac{R}{r}$$

D : d. $$k=\frac{q}{1.36(H^2-h^2)}$$

Options

A : a. 36 m/day

B : b. 30 m/day

C : c. 26 m/day

D : d. 20 m/day

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