GATE 2019 Soil Mechanics Quiz 1

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Question 1

The liquid limit (LL), plastic limit (PL) and shrinkage limit (SL) of a cohesive soil satisfy the relation

• ALL > PL > SL
• BLL > SL > PL
• CLL < PL < SL
• DLL < PL > SL

Question 2

The range of void ratio between which quick sand condition occurs in cohesionless granular soil deposits is

• A0.4 - 0.5
• B0.6 - 0.7
• C0.8 - 0.9
• D1.0 - 1.1

Question 3

A compacted sample of soil with bulk density of 2.0g/cm³ has a water content of 15%. What is its dry density? Assume G = 2.65

• A1.74 g/cm³
• B17.4 g/cm³
• C0.174 g/cm³
• D0.471 g/cm³

Question 4

A soil has liquid limit of 35, plastic limit of 20 and moisture content 25%. What will be its liquidity index and plasticity index

• A67, 15
• B0.33, 15
• C0.67, 25
• D0.33, 20

Question 5

List I and List II contains respectively terms and expressions related to soil classification. Match the two lists and select the correct answer using the codes given below the lists:
List-I
A) Activity number
B) Liquidity index
C) Sensitivity index
D) Consistency index
List-II
1.
2.
3.
4.

• AA-1 B-3 C-4 D-2
• BA-1 B-2 C-3 D-4
• CA-3 B-2 C-1 D-4
• DA-2 B-3 C-4 D-1

Question 6

A certain soil has the following properties: Gs=2.71, n=40% and w=20%. The degree of saturation of soil (rounded off to the nearest percent) is _____

• A61
• B81
• C83
• D68

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