Fixed installations

Question 1

What is a fixed installation?

Answer 1

Firefighting equipment that forms a permanent feature in a building.

Question 2

What are the most common fixed installations? (11)

Answer 2

Automatic fire alarms (AFA)
Automatic sprinklers.
Drenchers.
Water spray projectors.
Dry rising mains.
Wet rising mains.
Fire lifts.
Foam inlets.
Roller shutters.
Hosereel.
Waterless systems.

Question 3

What are the three functions of the AFA?

Answer 3

To detect a fire.
To raise an alarm and indicate the whereabouts.
To raise an alarm at the control panel.

Question 4

Where is a control panel normally located?

Answer 4

Near the entrance to the building.

Question 5

What are the three types of sprinkler?

Answer 5

Wet system. (filled with water)

Dry system.

Alternate system (wet or dry).

Question 6

What are the three functions of a sprinkler?

Answer 6

Detect the fire.
Attack the fire.
Give an audible warning.

Question 7

Why might a crew member be sent to the main stop valve of a building with a sprinkler system?

Answer 7

Ensure that the valve is not closed (except on the orders of the IC).
Open the valve, on the orders of the IC.

Question 8

When would a water spray projector system be used?

Answer 8

To protect equipment from oil fires.

Question 9

What are the advantages of a rising main?

Answer 9

It reduces the amount of hose.
Reduced frictional loss.
less equipment needed.
Staircase clear of hose lines.
Reduced effort required to supply water to the firefighting jet.

Question 10

What is a rising main?

Answer 10

A vertical pipe, with a fire service inlet, and outlets at various levels.

Question 11

What are the two types of rising main?

Answer 11

Wet and Dry

Question 12

What coupling do rising mains have?

Answer 12

65mm female instantaneous outlet

Question 13

Risers must be installed on buildings above____

Answer 13

18 metres

Question 14

What pressure should a dry riser be charged to?

Answer 14

10 bar.

Question 15

Wet risers are found in all buildings above ____m.

Answer 15

60 metres.

Question 16

As of 2006, all buildings over ____ must have a wet riser.

Answer 16

50 metres.

Question 17

Wet riser outlets normally supply between ____ and ____ bar pressure.

Answer 17

4 and 5 bar pressure.

HOWEVER 8 bar is recommended.

Question 18

What is the main advantage of using a fire lift?

Answer 18

Firefighters can reach upper floors quickly, without exerting undue stress.

Question 19

What will the operation of the fire lift do?

Answer 19

Deactivate each landing call button.
Return the lift to ground level.
Allow control via the lift buttons.

Question 20

The lift should be stopped a minimum of ____ floors below the fire.

Answer 20

2.

If there is any doubt, to the last known safe point.