Civil Engineering MCQs with explanations

Question 1

The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is________?

Accepted Answer

3F/2A

Question 2

The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is________?

Accepted Answer

0.15 cumec

Question 3

In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be________?

Accepted Answer

200 ppm

Question 4

In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always________?

Accepted Answer

1

Question 5

Select the correct statement?

Accepted Answer

5 day BOD is less than 4 day BOD keeping other conditions same

Question 6

The major principal stress in an element of cohesionless soil within the backfill of a retaining wall is________?

Accepted Answer

vertical if the soil is in an active state of plastic equilibrium

Question 7

Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)________?

Accepted Answer

N = y + R

Question 8

If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is________?

Accepted Answer

equal to specific gravity of soil

Question 9

The profit derived from a project or business enterprise without consideration of obligations to financial contributors and claims of others based on profit is known as ________?

Accepted Answer

Economic return

Question 10

Which of the following represents a carpet of sand-bitumen mix without coarse aggregates?

Accepted Answer

sheet asphalt

Civil Engineering MCQs with Explanations