BA

Question 1

List the four routines a BA wearer must carry out

Answer 1

Keep hair free of facemask seal
Report any defects immediately
Conducting a test following a cylinder change or when taking over a set
Inform your crew manager if a 28-day test is not been done

Question 2

Having decided where to site the ECP what action should the ECO complete before they’re ready to accept be a wearers

Answer 2

Set up tripod to increase telemetry
Don ECO tabard
Change radio to channel 6
Fill in the callsign stage and roll on the entry control board
Set up board and check clock
SETUP RESUSCITATOR FOR IMMEDIATE USE

Question 3

You have been committed to an incident when would you operate your body guard DSU

Answer 3

When a wearer becomes distressed or confused
A problem with your BA set
You are lost or disorientated
You’re injured

Question 4

How can the output of a water relay be improved

Answer 4

Shortening distance between appliances

Using hose with larger diameter

Question 5

if the pump is supplying a rosenbauer r101 branch to set 400 L per minute through two lengths of 70mm hose and one length 45mm hose to a height of 6 m above the pump what pressure should the branch operator request if they require 6 bar at the branch

Answer 5

8bar

Question 6

when the pump operating from an open water supply state four reasons why the compound gauge should indicate an increased vacuum reading

Answer 6

Level of supply
Suction strainer blocked
Branches opened
Burst delivery hose

Question 7

During pumping operations the pump operator to continually monitor their gauges flow metre and water contents indicator to make sure what three things are happening?

Answer 7

This applies not being overrun
The correct pressure is being delivered to the branches
Pump is performing correctly

Question 8

Describe the symptoms of heat exhaustion

Answer 8

Dehydration will give rise to thirst fatigue nausea and mental confusion

Question 9

At what bar pressure does the electronic low pressure warning device activate

Answer 9

84 bar

Question 10

exceptionally there may be operational circumstances where one firefighter wearing ba45 fighting would suffice in what circumstances can this procedure be applied

Answer 10

In line of sight from the ECO

IN OPEN-AIR

Question 11

Describe flashpoint

Answer 11

the lowest temperature at which sufficient vapours are being produced for a momentary flash to occur when an ignition source is introduced to the fuel the burning of the vapours does not continue once the ignition source is removed

Question 12

What is defensive ventilation

Answer 12

defensive ventilation is carried out away from the fire to improve access and escape route for fire fighting and searching conditions

Question 13

What is the length and maximum working pressure of 45 mm and 70 mm hose

Answer 13

23m

15bar

Question 14

State two reasons why when adjusting the branch flow and spray settings it should be done with the hand on top of the branch

Answer 14

It will make sure any jet reaction pushing the branch upwards can be controlled

It will also prevent any leakage from the branch wetting the branch operators gloves

Question 15

Which of the following statements is false the Mercedes multi pressure pump can supply:

A)High volumes of water at low pressure
B)High volumes of water at high pressure
C)Both high and low pressure simultaneously

Answer 15

B

Question 16

When should a 6% low expansion foam concentrate mixture be used

Answer 16

Fires involving polar solvents (liquids which dissolve in water)