
CW - Mechanical Backflow Prevention Arrangements PP10
Authored by Eden Longley
Other
University
Used 7+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the fluid category protection rating for a "Non-verifiable disconnector with difference between pressure zones not greater than 10%" against back-pressure?
4
3
2
X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of heating system is mentioned in the context of using a type CA backflow preventer?
Open central heating system
Sealed central heating system
Electric heating system
Gas heating system
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of system is shown in the diagram?
Electrical system
Gas system
Central heating system
Air conditioning system
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On which devices must DB pipe interrupters not be used?
Hose union bib taps
Water heaters
Devices with a control valve restriction
Garden hoses
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How must DB pipe interrupters be fitted?
Horizontally
Vertically
At an angle
Upside down
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must not be installed downstream of DB pipe interrupters?
Control valves
Hose union bib taps
Water heaters
Valves
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To which standard does the EA single check valve conform?
BS6282 Part 2
BS6282 Part 1
BS6283 Part 1
BS6283 Part 2
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