A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
✅ The correct answer is option A.
Civil Engineering Mcqs MCQs
2. For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed________________?
A. 1.5
B. 2.0
C. 2.5
D. 3.0
✅ The correct answer is option A.
3. If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water___________________?
A. 51 cm
B. 50 cm
C. 52 cm
D. 52.2 cm
✅ The correct answer is option A.
4. A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal tc__________________?
A. 10 kg
B. 100 kg
C. 1000 kg
D. 1 kg
✅ The correct answer is option A.
5. In septic tanks, decomposition of organic bacteria, is done by_____________________?
A. Anaerobic bacteria
B. Aerobic bacteria
C. Both types of bacterias
D. None of these
✅ The correct answer is option A.
6. In sewers the highest non-scouring velocity is achieved in________________?
A. Glazed bricks sewers
B. Cast iron sewers
C. Cement concrete sewers
D. Stone ware sewers
✅ The correct answer is option A.
7. Hydrometer is used to determine________________?
A. specific gravity of liquids
B. specific gravity of solids
C. specific gravity of gases
D. relative humidity
✅ The correct answer is option A.
8. The most dangerous pollutant in vehicular emissions is____________________?
A. CO
B. SO2
C. CO2
D. O3
✅ The correct answer is option A.
9. The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is________________?
A. d² (0.011d + 0.785H)/Q
B. d (0.022d + 0.085H)/Q
C. d (0.785d + 0.011H)/Q
D. d (0.285d + 0.011H)/Q
✅ The correct answer is option A.
10. The sewer pipe which carries sewage from a building for immediate disposal is______________?
A. House sewer
B. Lateral sewer
C. Intercepting sewer
D. Main sewer
✅ The correct answer is option A.