Civil Engineering Mcqs — Test 21
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Question 1
A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m2 when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively______________________?
Question 2
If a cohesive soil specimen is subjected to a vertical compressive load, the inclination of the cracks to the horizontal is__________________?
Question 3
If the shearing stress is zero on two planes, then the angle between the two planes is________________?
Question 4
In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as__________________?
Question 5
Sensitivity of a soil can be defined as___________________?
Question 6
The coefficient of active earth pressure for a loose sand having an angle of internal friction of 30° is___________________?
Question 7
During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mm2 to 0.26 N/mm2, the pore water pressure increases from 0.07 N/mm2 to 0.15 “N/mm2. Skempton’s pore pressure parameter B is___________________?
Question 8
In the triaxial compression test, the application of additional axial stress (i.e. deviator stress) on the soil specimen produces shear stress on__________________?
Question 9
Rankine’s theory of earth pressure assumes that the back of the wall is_______________?
Question 10
The major principal stress in an element of cohesionless soil within the backfill of a retaining wall is________________?