Sewerage System in Civil Works - Civil Draughtsman MCQs - Set 02 - ObjectiveBooks

Sewerage System in Civil Works - Civil Draughtsman MCQs - Set 02

Practice Test: Question Set - 02


1. Which device is used to prevent sewer gases from entering the building?
    (A) Filter
    (B) Trap
    (C) Ventilator
    (D) Vacuum pump

2. What is the term for water inside trap which prevents gas from entering?
    (A) Drain water
    (B) Water seal
    (C) Waste water
    (D) Trap safety

3. What should be the minimum diameter of the connecting pipe in the septic tank?
    (A) 60 mm
    (B) 100 mm
    (C) 300 mm
    (D) 700 mm

4. What is the average temperature of sewage in India?
    (A) 10°C
    (B) 15°C
    (C) 20°C
    (D) 25°C

5. What is the name of the water coming out of the kitchen, bathroom and wash basin?
    (A) Garbage
    (B) Sullage
    (C) Sewage
    (D) Discharge

6. What is the type of manhole having a depth greater than 1.5 m is called?
    (A) Straight manhole
    (B) Deep manhole
    (C) Shallow manhole
    (D) Normal manhole

7. Which type of pump should be selected in order to pump the sewage from a septic tank to the water treatment system?
    (A) Vertical slump pump
    (B) Progressive cavity pump
    (C) Centrifugal pump
    (D) Screw pump

8. Which type of sewer system is preferred in India?
    (A) Partial
    (B) Combined
    (C) Direct
    (D) Separate

9. Which material is used to make manhole cover?
    (A) Cast iron
    (B) Cement
    (C) Wood
    (D) Steel

10. Which sewer resist sulphide corrosion?
    (A) Brick sewer
    (B) Cast iron sewer
    (C) R.C.C. sewer
    (D) Lead sewer

11. What is the angle between the drains and inspection manhole?
    (A) 45°
    (B) 90°
    (C) 135°
    (D) 180°

12. What is the name for all kinds of liquid waste of a building?
    (A) Rubbish
    (B) Garbage
    (C) Ashes
    (D) Sewage

13. What is the first stage in sewage treatment process?
    (A) Sedimentation
    (B) Screening
    (C) Filtration
    (D) Softening

14. What is the maximum spacing of manhole sewer size up to 0.3 mf?
    (A) 20 m
    (B) 30 m
    (C) 45 m
    (D) 75 m

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