Question 1

Submersible pumps require high maintenance.

Accepted Answer

A) True 
 B)False  false

Question 2

____________is used to clean blockage in the line.

Accepted Answer

A)  lateral chamber
B)  main chamber
C)  inspection chamber
D)  sewer chamber C

Question 3

What is the recommended slope ratio for soil water pipes?

Accepted Answer

A)  1:12
B)  1:20
C)  1:30
D)  1:40 D

Question 4

What is the minimum diameter of pipes used for drainage of waste water?

Accepted Answer

A)  50 mm
B)  75 mm
C)  100 mm
D)  105 mm

Question 5

What is the shape of the septic tank?

Accepted Answer

A)  square
B)  rectangle
C)  circular
D)  oval

Question 6

What is the wastewater from kitchen sinks called?

Accepted Answer

A)  grey water
B)  black water
C)  yellow water
D)  brown water

Question 7

How many types of pumps are present?

Accepted Answer

A)  1
B)  2
C)  3
D)  4

Question 8

____________should not be placed near water body.

Accepted Answer

A)  power generator
B)  soak pit
C)  pump stations
D)  houses

Question 9

What is the water from urinals called?

Accepted Answer

A)  black water
B)  yellow water
C)  grey water
D)  brown water

Question 10

____________causes hoop tension in pipe shell.

Accepted Answer

A)  internal water pressure
B)  external water pressure
C)  water hammer
D)  longitudinal stress

Question 11

What is the percentage of purification of septic tank effluent?

Accepted Answer

A)  30%
B)  50%
C)  70%
D)  90%

Question 12

Which of the following stress in pipe depends on temperature?

Accepted Answer

A)  internal water pressure
B)  stress due to foundation reaction
C)  longitudinal stress
D)  temperature stress

Question 13

Grease should not be allowed to enter the normal drainage system.

Accepted Answer

A) True 
 B)False

Question 14

Pipe corrosion can be minimized by

Accepted Answer

A)  removal of copper sulfate
B)  addition of calcium carbonate
C)  addition of carbon dioxide
D)  removal of dissolved oxygen

Question 15

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

Accepted Answer

A)  50 mm
B)  75 mm
C)  100 mm
D)  125 mm

Exam 8: Pipe and Pump

Submersible pumps require high maintenance.