Environmental Engineering (3160611) MCQs

MCQs of House Drainage

Showing 31 to 40 out of 53 Questions
1 2 3 4 5 6
31.

What is the minimum diameter of the pipe used to collect black water?

(a)

 50 mm
(b)

75 mm
(c)

100 mm
(d)

125 mm
Answer:

Option (c)

32.

What is the recommended slope ratio for soil water pipes?

(a)

1:12
(b)

1:20
(c)

1:30
(d)

1:40
Answer:

Option (d)

33.

_______ is used to clean blockage in the line

(a)

Lateral chamber
(b)

Main chamber
(c)

Inspection chamber
(d)

Sewer chamber
Answer:

Option (c)

34.

What is the shape of the septic tank?

(a)

Square
(b)

Rectangle
(c)

Circular
(d)

Oval
Answer:

Option (b)

35.

What is the percentage of purification of septic tank effluent?

(a)

30%
(b)

50%
(c)

70%
(d)

90%
Answer:

Option (c)

36.

________ should not be placed near water body.

(a)

Power generator
(b)

Soak pit
(c)

Pump stations
(d)

Houses
Answer:

Option (b)

37.

The wastewater which does not contain sewage is known as _______

(a)

Sullage
(b)

Sewage
(c)

Sewerage
(d)

Grey water
Answer:

Option (a)

38.

What are the masonry chambers constructed at suitable intervals along sewer lines called?

(a)

Traps
(b)

Ventilators
(c)

Manhole
(d)

Sewer
Answer:

Option (c)

39.

The house sewer should always be _______

(a)

Straight
(b)

Perpendicular to the house
(c)

At an angle of 45˚ to the house
(d)

At an angle of 135˚ to the house
Answer:

Option (a)

40.

Which of these is not an important component of house drainage system?

(a)

Traps
(b)

Sanitary fittings
(c)

Aerators
Answer:

Option (d)

Showing 31 to 40 out of 53 Questions
1 2 3 4 5 6