Environmental Engineering (3160611) MCQs

MCQs of House Drainage

Showing 1 to 10 out of 53 Questions
1 2 3 4 5 6
1.

An inverted siphon is designed generally for

(a)

one pipe
(b)

two pipes
(c)

three pipes
(d)

four pipes.
Answer:

Option (b)

2.

Traps

(a)

are water seals which prevent the entry of foul gases
(b)

are used to trap the rats entering sewers
(c)

dissolve the foul gases
(d)

create syphonic action to increase the quick disposal of sewerage
Answer:

Option (a)

3.

The sewers should be laid _____

(a)

Below the building
(b)

Side of the building
(c)

Within the building
(d)

Across the building
Answer:

Option (b)

4.

What is the angle between the drains and inspection manholes?

(a)

45˚
(b)

90˚
(c)

135˚
(d)

180˚
Answer:

Option (d)

5.

_________ is the removal of excess surface water from the land to enhance crop growth.

(a)

 Sewer drainage
(b)

Agricultural drainage
(c)

Municipal drainage
(d)

Soil drainage
Answer:

Option (b)

6.

Which of the following is not correct with respect to installing the drainage system in the waterlogged land?

(a)

Increase in water amount in soil
(b)

Reduction in water amount on soil
(c)

Discharge of water through the system
(d)

Reducing waterlogging
Answer:

Option (a)

7.

Which of these is negative effect owing to the drier soil conditions?

(a)

Aeration of soil
(b)

Soil structure
(c)

Availability of nitrogen
(d)

Irrigation efficiency
Answer:

Option (d)

8.

What is the device used to prevent sewer gases from entering the buildings?

(a)

Filters
(b)

Traps
(c)

Ventilators
(d)

Vacuum pumps
Answer:

Option (b)

9.

_________ is constructed outside the building to carry wastewater discharge.

(a)

Gully trap
(b)

P. trap
(c)

S. trap
(d)

Floor trap
Answer:

Option (a)

10.

What is the minimum depth of water required in gully trap?

(a)

10 mm
(b)

20 mm
(c)

40 mm
(d)

50 mm
Answer:

Option (d)

Showing 1 to 10 out of 53 Questions
1 2 3 4 5 6