1
GATE CE 2022 Set 1
MCQ (Single Correct Answer)
+1
-0.33

The correct match between the physical states of the soils given in Group-I and the governing conditions given in Group-II is

Group-I Group-II
1. normally consolidated soil. P. sensitivity > 16
2. quick clay Q. dilation angle = 0
3. sand in critical state. R. liquid limit > 50
4. clay of high plasticity. S. over consolidation ratio = 1
A
1-S, 2-P, 3-Q, 4-R
B
1-Q, 2-S, 3-P, 4-R
C
1-Q, 2-P, 3-R, 4-S
D
1-S, 2-Q, 3-P, 4-R
2
GATE CE 2022 Set 1
MCQ (Single Correct Answer)
+1
-0.33

As per Rankine's theory of earth pressure, the inclination of failure planes is $$\left( {45 + {\phi \over 2}} \right)^\circ $$ with respect to the direction of the minor principal stress.

The above statement is correct for which one of the following options?

A
Only the active state and not the passive state
B
Only the passive state and not the active state
C
Both active as well as passive state
D
Neither active nor passive state
3
GATE CE 2022 Set 1
Numerical
+1
-0.33

A square concrete pile of 10 m length is driven into a deep layer of uniform homogenous clay. Average unconfined compressive strength of the clay, determined through laboratory tests on undisturbed samples extracted from the clay layer, is 100 kPa. If the ultimate compressive load capacity of the driven pile is 632 kN, the required width of the pile is __________ mm. (in integer)

Bearing capacity factor Nc = 9; adhesion factor $$\alpha$$ = 0.7)

Your input ____
4
GATE CE 2022 Set 1
Numerical
+1
-0.33

A raft foundation of 30 m $$\times$$ 25 m is proposed to be constructed at a depth of 8 m in a sand layer. A 25 m thick saturated clay layer exists 2 m below the base of the raft foundation. Below the clay layer, a dense sand layer exists at the site. A 25 mm thick undisturbed sample was collected from the mid-depth of the clay layer and tested in a laboratory oedometer under double drainage condition. It was found that the soil sample had undergone 50% consolidation settlement in 10 minutes. The time (in days) required for 25% consolidation settlement of the raft foundation will be ___________. (round off to the nearest integer)

Your input ____
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