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BA > BA > Flashcards

BA Flashcards

1
Q

What voltage are the BA set cable cutters insulated to?

A

1000v AC
1500v DC

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2
Q

What is the minimum period between each FMFT?

A

1 Month

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3
Q

When is BA Entry Control Procedure Introduced?

A

Whenever BA is worn

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4
Q

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

A

12

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5
Q

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

A

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

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6
Q

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

A

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

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7
Q

List four safety features incorporated into the Interspiro DDU and BAC

A

Pressure Display

Manual DSU

Automatic DSU

Electronic Low Pressure Warning Whistle

Pneumatic Low Pressure Warning Whistle

Backlight

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8
Q

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

A

4

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9
Q

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

A

105Db

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10
Q

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

A

6 hours

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11
Q

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

A

Below 270 Bar

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12
Q

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

A

12-20 bar

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13
Q

What is the correct composition of air on inhalation?

A

79% nitrogen
21 % oxygen

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14
Q

Define the term Tidal Capacity and state the volume?

A

Flow of air from the lungs under inactive conditions.

1/2 litre

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15
Q

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

A

5.5 litres

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16
Q

List the four main parts of the respiratory tract

A

Trachea
Bronchi
Bronchioles
Alveoli

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17
Q

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

A

1.25m

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18
Q

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

A

6m

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19
Q

When are stage 2 BA Entry Control Procedures Introduced?

A

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.

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20
Q

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

A

BA Lamp

Cable Cutters

Retractable Personal Line

Identification Talley

1 Cylinder Cover

1 Compressed Air Cylinder

BA set Log Book

21
Q

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

A

50 lpm

22
Q

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

A

Spiroguide DDU has TAP in display.

The DSU screen will turn red.

A double beep every 5 seconds.

23
Q

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

A
  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
24
Q

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

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

A

450lts per min

25
Q

The face mask is constructed from?

A

60% natural rubber & 40% silicone

26
Q

What is the full duration of a BA set?

A

48 minutes @ 300 BAR

27
Q

What is the working duration of a BA Set?

A

38 minutes

28
Q

What is the safety Margin of a BA Set?

A

10 minutes

29
Q

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

A

6-10.5 bar

30
Q

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

A

4 litres

31
Q

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

A

1 1/2 litres

32
Q

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

A

60-80bpm

33
Q

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

A

16-18 times per minute

34
Q

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

A

240 bar

35
Q

Contents of the BA Entry Control Bag

A

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

36
Q

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

A

Channel 6

37
Q

GUN Reading

TAP

Entry Pressure = 300 bar

Divide by 2 = 150 bar

Half Safety Margin (60 / 2) = 30
Bar

What is the TAP?

A

180 bar

38
Q

Gun Reading

Entry Pressure = 300 bar
TAP = 180 bar

Got = 260
Used = 40
Need?

A

100 (40 used and safety margin 60 bar)

39
Q

How long is a BA Guideline?

A

60m

40
Q

What is the BA Cylinder constructed of?

A

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

41
Q

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

A

2430 litres

42
Q

A cylinder has a volume of ? Litres

A

9 litres

43
Q

TIC usage

What are the three sweeps?

A

First Sweep - High Level (Fire Gasses)

Second Sweep - Low Level for casualties

Third Sweep - At middle level checking for doors and ventilation points

44
Q

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?

A

FB224a

45
Q

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

A

3 x AAA

46
Q

How many hours of data logging does the BAC store?

A

180 hours

47
Q

What is the approximate battery life of the BAC?

A

50 Hours

48
Q

What is the composition of air on exhalation?

A

79% nitrogen
17% oxygen
4% carbon dioxide

BA (1 decks)

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