Test: Three Phase System - Civil Engineering (CE) MCQ

# Test: Three Phase System - Civil Engineering (CE) MCQ

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## 10 Questions MCQ Test Soil Mechanics - Test: Three Phase System

Test: Three Phase System for Civil Engineering (CE) 2024 is part of Soil Mechanics preparation. The Test: Three Phase System questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Three Phase System MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Three Phase System below.
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Test: Three Phase System - Question 1

### A soil mass in a three-phase system consists of ______

Detailed Solution for Test: Three Phase System - Question 1

Solids and water, solids and air are two-phase systems. Sand, gravel and air are not the phases. Solids, water and air are considered to be a three-phase system of the soil mass.

Test: Three Phase System - Question 2

### The volume of voids Vv is equal to the sum of ______

Detailed Solution for Test: Three Phase System - Question 2

The voids in soil mass are occupied by air and water. Hence, the volume of voids equals to the volume of air and volume of water.

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Test: Three Phase System - Question 3

### The volume of solids is represented as _______ in the phase diagram.

Detailed Solution for Test: Three Phase System - Question 3

The volume of voids, water and air are represented as Vv, VW and Va. The volume of solids is represented as Vd or VS in the phase diagram.

Test: Three Phase System - Question 4

The total weight of the moist sample is the sum of _______

Detailed Solution for Test: Three Phase System - Question 4

The sum of the weight of voids Wv and weight of solid is the total weight. The weight of total voids is equal to the weight of Water and weight of air. Since the weight of air is considered to be negligible, the weight of total voids is equal to the weight of Water. Therefore, the total weight of the moist sample is the sum of W+ Wd.

Test: Three Phase System - Question 5

A soil sample weighs 190kN. After oven drying it weighs 150kN. What will be the weight of Water before oven drying?

Detailed Solution for Test: Three Phase System - Question 5

Given,
Weight of soil sample W = 190kN
Weight after oven drying Wd = 150kN
Weight of Water WW = W - Wd
WW = 190 - 150
WW = 40kN.

Test: Three Phase System - Question 6

The phase diagram is also known as _______

Detailed Solution for Test: Three Phase System - Question 6

It is always convenient to show the constituents occupying separate spaces as blocks. In the phase diagram, the soil occupies the bottom position. Water and air occupy the middle and top positions.

Test: Three Phase System - Question 7

In the phase diagram, volumes are represented on the ________

Detailed Solution for Test: Three Phase System - Question 7

Volumes are represented on the left side whereas weights are represented on the right side of the block diagram.

Test: Three Phase System - Question 8

The weight of solids is represented as _______

Detailed Solution for Test: Three Phase System - Question 8

The weights of Water, air and total weight are represented as WW, Wa and W. The weight of solids is represented as Wd or WS in the phase diagram.

Test: Three Phase System - Question 9

For a fully saturated soil sample, the volume of voids is equal to _______

Detailed Solution for Test: Three Phase System - Question 9

In a fully saturated sample, the volume of voids gets completely filled by water leaving no air voids present in the sample. Hence, volume of voids equals the volume of water.

Test: Three Phase System - Question 10

In a wet soil mass, air occupies one-sixth of its volume and water occupies one-third of its volume. The void ratio of the soil is

Detailed Solution for Test: Three Phase System - Question 10

## Soil Mechanics

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## Soil Mechanics

30 videos|76 docs|74 tests