Q1.A 6 m high retaining wall having a smooth vertical back face retains a layered horizontal backfill.
Top 3 m thick layer of the backfill is sand having an angle of internal friction, φ = 30° while the
bottom layer is 3 m thick clay with cohesion, c = 20 kPa. Assume unit weight for both sand and
clay as 18 kN/m3. The totalactive earth pressure per unit length of the wall (in kN/m) is:
Answer : Option AExplaination / Solution: No Explaination.
Q4.Group I enlists in-situ field tests carried out for soil exploration, while Group II provides a list
of parameters for sub-soil strength characterization. Match the type of tests with the
characterization parameters
Answer : Option AExplaination / Solution: No Explaination.
Q5.Following statement are made on compacted soil, where DS stands for soil
compaction on Dry Side of OMC and WS stands for soil compacted on Wet Side of
OMC. Identify incorrect statement
Answer : Option CExplaination / Solution: No Explaination.
Q6.For a saturated sand deposit, the void ratio and the specific gravity of solids are 0.70 and 2.67, respectively. The critical (upward) hydraulic gradient for the deposit would be
Answer : Option BExplaination / Solution: No Explaination.
Q8.A soil is composed of solid spherical grains of identical specific gravity and diameter between 0.075mm and 0.0075mm. If the terminal velocity of the largest particle falling through water without flocculation is 0.5mm/s, that for the smallest particle would be
Answer : Option AExplaination / Solution: No Explaination.
Q9.Two soil profile are used as backfill behind a retaining wall as shown in the figure,
where γt is total unit weight and c’ & φ' ‘ are effective shear parameters. Find the
resultant active earth pressure in kN/m
Q10.The soil profile above the rock surface at 25o infinite slope is shown in figure
where Su is undrain shear stress and γt is total unit weight. The slip will occur at
a depth of
Answer : Option AExplaination / Solution:
The slip will occur when shear stress is greater than or equal to shear strength
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0