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This mock test of Seepage Analysis - 1 for Civil Engineering (CE) helps you for every Civil Engineering (CE) entrance exam.
This contains 10 Multiple Choice Questions for Civil Engineering (CE) Seepage Analysis - 1 (mcq) to study with solutions a complete question bank.
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QUESTION: 1

From a flow net which of the following information can be obtained?

1. Rate of flow

2. Pore water pressure

3. Exit gradient

4. Permeability

Select the correct answer using the codes given below:

Solution:

Seepage pressures, uplift pressures, exit gradient and pore-water pressure can be obtained from a flownet.

QUESTION: 2

Which one of the following soil types is most likely to be subjected to liquefaction under seismic forces?

Solution:

QUESTION: 3

A flownet of a coffer dam foundation has 6 flow channels and 18 equipotential drops. The head of water lost during seepage is 6 m. If the coefficient of permeability of foundation is 4 x 10^{-5 }m/min, then the seepage loss per metre length of dam will be

Solution:

Seepage loss per metre length,

QUESTION: 4

Capillary rise is maximum for

Solution:

For fine grained soils effective size ‘d’ is smaller so it will experience more capillary rise.

QUESTION: 5

Water is flowing in an upward direction through a stratum of sand, 4 m thick, under a total head difference of 2 m. The sand has asp. gr. of 2.65 and void ratio of 0.065. The factor of safety against quick sand condition would be

Solution:

QUESTION: 6

For design of filter the criteria usually adopted is

Solution:

QUESTION: 7

The constant of proportionality between seepage velocity and hydraulic gradient is called

Solution:

**Seepage Velocity= Coefficient of Percolation x Hydraulic Gradient**

QUESTION: 8

In an earthen dam the phreatic line is

Solution:

QUESTION: 9

The critical hydraulic gradient of a soil i_{c} is given by

where G = specific gravity, e = void ratio

Solution:

QUESTION: 10

if the permeability of soil does not depend on its mineral content but depends on orientation of particles then the void space is known as

Solution:

Micropores, often found between and within soil aggregates, are so small that surface tension holds water in place. It does not depend on mineral content rather depends on orientation of the particles. Instead of draining away, water moves through micropores only when suction is created by thirsty roots.

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