BA

Question 1

What voltage are the BA set cable cutters insulated to?

Answer 1

1000v AC
1500v DC

Question 2

What is the minimum period between each FMFT?

Answer 2

1 Month

Question 3

When is BA Entry Control Procedure Introduced?

Answer 3

Whenever BA is worn

Question 4

What is the maximum number of fire-fighters a Stage 2 BAEC Supervisor can be responsible for?

Answer 4

12

Question 5

List the occasions personnel will perform a General Test on a BA Set?

Answer 5

Wholetime - when nominated to wear BA at the start of a shift

On-Call Training Night & Prior to wearing BA

When the set has been worn for Fire or Training

On return from BA Workshops

When collecting from a holding area at an incident

Question 6

What is the purpose of the inner orinasal mask on the BA set?

Answer 6

Prevent the build-up of Carbon Dioxide in the mask when air is exhaled

Question 7

List four safety features incorporated into the Interspiro DDU and BAC

Answer 7

Pressure Display

Manual DSU

Automatic DSU

Electronic Low Pressure Warning Whistle

Pneumatic Low Pressure Warning Whistle

Backlight

Question 8

What is the maximum number of Stage 2 BAEC boards a single BA Sector Command Board can be responsible for?

Answer 8

4

Question 9

What is the volume level of a sounding alarm on the Interspiro BA Set set (not test volume)

Answer 9

105Db

Question 10

How long should the new batteries last on the BA Set torch when it is used continually?

Answer 10

6 hours

Question 11

At what pressure would a cylinder fail the General Test on an Interspiro BA Set?

Answer 11

Below 270 Bar

Question 12

At what pressure will the relief valve on the regulator operate (in bar)

Answer 12

12-20 bar

Question 13

What is the correct composition of air on inhalation?

Answer 13

79% nitrogen
21 % oxygen

Question 14

Define the term Tidal Capacity and state the volume?

Answer 14

Flow of air from the lungs under inactive conditions.

1/2 litre

Question 15

What is the average lung capacity of a human adult in litres?

Answer 15

5.5 litres

Question 16

List the four main parts of the respiratory tract

Answer 16

Trachea
Bronchi
Bronchioles
Alveoli

Question 17

What is the length of the short personal line in metres?

Answer 17

1.25m

Question 18

What is the overall length of a personal line in metres?

Answer 18

6m

Question 19

When are stage 2 BA Entry Control Procedures Introduced?

Answer 19

When there are more than 6 wears.

Greater degree of command and control required from Incident Commander.

When guidelines are required.

When there are more than 1 entry points.

Question 20

List three items of additional equipment provided with each Interspiro BA set?

Answer 20

BA Lamp

Cable Cutters

Retractable Personal Line

Identification Talley

1 Cylinder Cover

1 Compressed Air Cylinder

BA set Log Book

Question 21

What is the approximate volume of air breathed by a person walking at 4 mph whilst wearing a BA Set (in L/Min)

Answer 21

50 lpm

Question 22

How will you know when you have reached your TAL whilst wearing your Interspiro BA set at an incident?

Answer 22

Spiroguide DDU has TAP in display.

The DSU screen will turn red.

A double beep every 5 seconds.

Question 23

List 8 rules to be remembered by BA wearer to enable proficient operation of BA Entry Control?

Answer 23

1. BA is only to be worn on instruction from the Incident Commander.
2. Ensure that they fully understand their brief, tasks instructions, where and how they are required to enter the risk area, any identified hazards and say any limitations on the duration of wear as determined by the person responsible for the BA entry control point.
3. On instruction from the person responsible for the BA Entry Control Point, start up the BA Set, complete the pre-entry checks and proceed to the BA Entry control point.
4. Carry out Comms, check prior to going under air, including Team Talk, and push to talk.
5. Ensure an adequate face seal is established in safe air.
6. Ensure that appropriate personal protective equipment is worn correctly.
7. Approach BA Entry Control (in full PPE) holding DDU with key in. Turn Around Pressure (TAP) will be reset by BAECO before entering the risk area.
8. Ensure their Talley is placed in the BA Entry Control Board with the ‘time-in’ section completed the BA Entry Control Operative before entering the risk area.
9. Check firefighting equipment by operation before entering the risk area.
10. Always carry out safe movement and search and rescue techniques, maintaining close personal contact between wearers

Question 24

The pressure regulator is made of chromium plated marine grade brass.

It is capable of delivering more than ??? L/pm

Answer 24

450lts per min

Question 25

The face mask is constructed from?

Answer 25

60% natural rubber & 40% silicone

Question 26

What is the full duration of a BA set?

Answer 26

48 minutes @ 300 BAR

Question 27

What is the working duration of a BA Set?

Answer 27

38 minutes

Question 28

What is the safety Margin of a BA Set?

Answer 28

10 minutes

Question 29

Air flows to the breathing valve at a reduced pressure of X - X bar?

Answer 29

6-10.5 bar

Question 30

Vital capacity is the maximum inhalation and exhalation under strenuous conditions. What is the capacity?

Answer 30

4 litres

Question 31

Residual Air is the minimum quantity of air remaining in the lungs at all times. What is the quantity?

Answer 31

1 1/2 litres

Question 32

What is the average pulse rate for an adult at rest?

Answer 32

60-80bpm

Question 33

What is the average breathing rate for an adult at rest?

Answer 33

16-18 times per minute

Question 34

The wearer will have sufficient pressure to report to BA Entry Control with more than the minimum pressure of?

Answer 34

240 bar

Question 35

Contents of the BA Entry Control Bag

Answer 35

6 x Door Wedges 2 x Evacuation Whistles 1 x TAP Rest Key 2 x Main guideline tallies 4 x Branchline Tallies 1 x BAEC Aid Memoir 2 x Milwaukee Inkzell Pens 2 x Chinagraphs Pencils 2 x Sponges 1 x BA Coms Armband 1 x Casualty Strap 1 x Entry Control Tabard 4 x Smoke Hood 1 x Guideline

Question 36

What channel is the foreground radio designated for use between BA Sector command board and BA entry control points

Answer 36

Channel 6

Question 37

GUN Reading TAP Entry Pressure = 300 bar Divide by 2 = 150 bar Half Safety Margin (60 / 2) = 30 Bar What is the TAP?

Answer 37

180 bar

Question 38

Gun Reading Entry Pressure = 300 bar TAP = 180 bar Got = 260 Used = 40 Need?

Answer 38

100 (40 used and safety margin 60 bar)

Question 39

How long is a BA Guideline?

Answer 39

60m

Question 40

What is the BA Cylinder constructed of?

Answer 40

Carbon Fibre reinforced cylinders are made by winding carbon fibres radially and tangentially onto a lightweight aluminium liner.

Question 41

A BA cylinder has a capacity of ? When charged to 300bar (In litres)

Answer 41

2430 litres

Question 42

A cylinder has a volume of ? Litres

Answer 42

9 litres

Question 43

TIC usage What are the three sweeps?

Answer 43

First Sweep - High Level (Fire Gasses) Second Sweep - Low Level for casualties Third Sweep - At middle level checking for doors and ventilation points

Question 44

If a BA set fails 3 times consecutively for the same issue it should be removed from service and returned to BA workshops with a completed FB?

Answer 44

FB224a

Question 45

How many and what type of batteries does the BAC take?

Answer 45

3 x AAA

Question 46

How many hours of data logging does the BAC store?

Answer 46

180 hours

Question 47

What is the approximate battery life of the BAC?

Answer 47

50 Hours

Question 48

What is the composition of air on exhalation?

Answer 48

79% nitrogen 17% oxygen 4% carbon dioxide