Civil Engineering - Online Test

Q1. The specific gravity of paving bitumen as per IS:73-1992 lies between
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. A box contains 4 white balls and 3 red balls. In succession, two balls are randomly selected and removed from the box. Given that the first removed ball is white, the probability that the second removed ball is red is
Answer : Option C
Explaination / Solution:
No Explaination.


Q3. Consider a simply supported beam with a uniformly distributed load having a neutral axis (NA) as shown. For points P (on the neutral axis) and Q (at the bottom of the beam) the state of stress is best represented by which of the following pairs?

Answer : Option A
Explaination / Solution:
No Explaination.


Q4. The relationship among specific yield (Sy), specific retention (Sr) and porosity (η) of an aquifer is
Answer : Option C
Explaination / Solution:
No Explaination.


Q5. An Eigenvector of  is
Answer : Option B
Explaination / Solution:
No Explaination.


Q6. A field vane shear testing instrument (shown alongside) was inserted completely into a deposit of soft, saturated silty clay with the vane rod vertical such that the top of the blades were 500 mm below the ground surface. Upon application of a rapidly increasing torque about the vane rod, the soil was found to fail when the torque reached 4 6. Nm. Assuming mobilization of undrained shear strength on all failure surfaces to be uniform and the resistance mobilized on the surface of the vane rod to be neglibible, what would be the peak undrained shear strength (rounded off to the nearest integer value of kPa) of the soil?

Answer : Option B
Explaination / Solution:
No Explaination.


Q7. Likelihood of general shear failure for an isolated footing in sand decreases with
Answer : Option B
Explaination / Solution:
No Explaination.


Q8. The depth of flow in a alluvial channel is 1.5 m If critical velocity ratio is 1.1 and Manning’s n is 0.018, the critical velocity of the channel as per Kenedy’s method is
Answer : Option B
Explaination / Solution:
No Explaination.


Q9. For the differential equation  with initial conditions x(0) = 1 and   the solution is
Answer : Option B
Explaination / Solution:
No Explaination.


Q10. A sand layer found at sea floor under 20m water depth is characterized with relative density = 40%, maximum void ratio = 1.0, minimum void ratio = 0.5, and specific gravity of soil solids = 2.67. Assume the specific gravity of sea water to be 1.03 and the unit weight of fresh water to be 9.81kN/m3.
What would be the effective stress (rounded off to the nearest integer value of kPa) at 30m depth into the sand layer?
Answer : Option D
Explaination / Solution:
No Explaination.