July 2023

Q. A circular duct carrying water gradually contracts from a diameter of 30 cm to 15 cm. The figure (not drawn to scale) shows the arrangement of differential manometer attached to the duct. When the water flows, the differential manometer shows a deflection of 8 cm of mercury (Hg). The values of specific gravity of […]

Q. The maximum number of vehicles observed in any five minute period during the peak hour is 160. If the total flow in the peak hour is 1000 vehicles, the five minute peak hour factor (round off to 2 decimal places) is _________________________ Sol: The five-minute peak hour factor for 5 minutes is defined as the

Q. For a given loading on a rectangular plain concrete beam with an overall depth of 500 mm, the compressive strain and tensile strain developed at the extreme fibers are of the same magnitude of 2.5×10-4. The curvature in the beam cross-section (in m-1, round off to 3 decimal places), is _ Solution:    Given,ϵ=ϵt=ϵc=2.5×10−4y =

Q. Which one of the following is a secondary pollutant? (A) Ozone (B) Carbon Monoxide (C) Hydrocarbon (D) Volatile Organic Carbon (VOC) Solution: Ozone Solution: Secondary pollutants are type of pollutant that is formed in the atmosphere. These pollutants are not emitted directly from a source, such as vehicles or power plants. When primary pollutants

Q. A retaining wall of height H with smooth vertical backface supports a backfill inclined at an angle b with the horizontal. The backfill consists of cohesionless soil having angle of internal friction f. If the active lateral thrust acting on the wall is Pa, which one of the following statements is TRUE? (A) Pa

Q. A catchment may be idealised as a rectangle. There are three rain gauges located inside the catchment at arbitrary locations. The average precipitation over the catchment is estimated by two methods: (i) Arithmetic mean (PA), and (ii) Thiessen polygon (PT). Which one of the following statements is correct? (A) PA is always smaller than

Q. If the path of an irrigation canal is below the bed level of a natural stream, the type of cross- drainage structure provided is (A) Aqueduct (B) Level crossing (C) Sluice gate (D) Super passage Ans: Super passage Solution: If the path of an irrigation canal is below the bed level of a natural