Deck 8: Pipe and Pump

Question 1

 ____________causes hoop tension in pipe shell.

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

Answer 1

internal water pressure

Question 2

Which of the following stress in pipe depends on temperature?

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

Answer 2

temperature stress

Question 3

Pipe corrosion can be minimized by

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

Answer 3

removal of dissolved oxygen

Question 4

How many types of pumps are present?

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

Question 5

Submersible pumps require high maintenance.

Question 6

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

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

Question 7

What is the wastewater from kitchen sinks called?

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

Question 8

What is the water from urinals called?

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

Question 9

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

Question 10

What is the recommended slope ratio for soil water pipes?

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

Question 11

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

Question 12

 ____________is used to clean blockage in the line.

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

Question 13

What is the shape of the septic tank?

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

Question 14

What is the percentage of purification of septic tank effluent?

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

Question 15

____________should not be placed near water body.

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