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06. SCBA-Full > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

PASS stands for?

A

Personal alert safety system

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2
Q

6 scba major components

A
  1. cylinder and cylinder valve
  2. Harness, back frame, dual ebss with 3 ft of hose, stage rescue loop, ric/uac
  3. Pressure reducer assembly
  4. Breaking regulator - vibralert alarm, purge valve, air saver switch, heads up display
  5. Pak alert se distress alarm - sensor module with pak tracker locator transmitter, control console, remote pressure gauge.
  6. Face piece - AV 2000
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3
Q

How many feet is the ebss hose?

A

3 ft

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4
Q

Composition and pressure of the Scott air pak fifty bottle

A

Aluminum shell over wrapped with carbon fiber reinforced with epoxy resin.

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5
Q

What is the psi for Scott air pak fifty bottle, how long will it last and how many cubic feet of air is this?

A

4500 psi, 60 minutes, and 87 cu feet

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6
Q

Who regulates the testing of the scba bottles and how often are they tested

A

DOT, every 5 years

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7
Q

What is the nominal weight of the scba bottle and the weight when installed as the air pak assembly?

A

17.1, 26.1 lbs

This does not include the quick connect with hud, the ebss, or the pak alert with pak tracker

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8
Q

The components of the cylinder

A

Cylinder valve assembly consisting of a shut off valve, a safety relief device (copper frangible disk), and a pressure gauge

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9
Q

How many bleed holes are on the cylinder valve and what is their purpose?

A

2 - to allow air to vent should the low pressure system be attached to the high pressure cylinder

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10
Q

What is the harness and bac frame assembly constructed of?

A

Stamped aluminum

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11
Q

What are the pak straps made of

A

Kevlar

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12
Q

What is the pressure the primary reducing circuit reduces the high pressure air to?

A

100 psi

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13
Q

When the air pressure in the cylinder falls to ____ and _____, the primary pressure reducing circuit fails in the ____position, a transfer valve opens allowing he secondary pressure reducing circuit to function. It reduces the pressure to ____psi. The ____psi supplied by the secondary circuit activates the vibralert.

A

1000, 1200, closed, 150, 50.

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14
Q

The over pressure relief valve on the manifold is set to ____psi. This protects the low pressure hose and regulator should the primary reducing circuit fail in the _____position

A

225, open

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15
Q

Vibralert warns the user that there is how much pressure left in the cylinder?

A

25%, 1000-1200

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16
Q

6 components of the regulator

A
  1. Air saver switch
  2. Spray bar
  3. Spring clip
  4. Purge valve
  5. Vibralert alarm
  6. Heads up display
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17
Q

What is the pressure above atmospheric pressure inside r face piece?

A

0.036-0.054 psi

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18
Q

How many homes in the spray bar?

A

9

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19
Q

What is he normal position of the purge valve? What direction is it turned to operate it?

A

12 o clock, counter clockwise

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20
Q

How many cu ft or liters of air can the purge valve flow?

A

4.4 cu ft or 125 liters per minute

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21
Q

Vibralert will activate under these three conditions?

A
  1. Less than 25% air
  2. Primary reducing circuit failed, secondary in operation
  3. Primary reducing circuit failed open, air at 225 psi entered manifold causing loud escaping air sound
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22
Q

When the pak is turned on, how many lights light up and for how long?

A

5 lights for 20 seconds

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23
Q

What lights indicate a full cylinder?

A

2 green

24
Q

What lights indicate a 3/4 cylinder?

A

Single green

25
Q

What lights indicate a half cylinder?

A

Single yellow flashing once a second

26
Q

What lights indicate a quarter cylinder?

A

Red light at the far left flashing 10 times per second

27
Q

The data logging feature records up to how many events?

A

2000

28
Q

Interference can occur if a radio is used within how many inches of the control console or sensor module of the pak alert se alarm?

A

6 inches

29
Q

How long will it take for the pak alert se to go into full alarm?

A

30 seconds. 20 for pre alarm, then 10 seconds more until full alarm.

30
Q

With fresh batteries, how long will the pak alert last in monitor mode and in full alarm mode?

A

1000 hrs

8 hrs

31
Q

What is the AV 2000 lens made of?

A

Polycarbonate lens bonded to natural rubber deal, 2 speaking diaphragms, nosecup, and a 4 point yellow Kevlar head harness.

32
Q

How long do you hold the microphone away from the speaking diaphragm?

A

1/2”

33
Q

How many batteries and what type are used for the pak tracker?

A

6 AA

34
Q

Pak tracker start up will flash what?

A

Bright light then flash green

35
Q

Pak tracker normal will flash what?

A

Flash green

36
Q

Pak tracker respirator low air (1/4) will flash what?

A

Flash orange

37
Q

Pak tracker low battery while on will flash what?

A

Flash orange once per second

38
Q

Pak tracker shut down will flash what?

A

Lights off

39
Q

Pak tracker will flash what when press reset w/ unit off?

A

Bright light then flash free if good, red if low

40
Q

Pak tracker will flash what when press manual w/ unit off?

A

Flash green then full alarm flash red

41
Q

Pak tracker in pass pre alarm will flash what?

A

Flash red alternately

42
Q

Pak tracker in pass full alarm will flash what?

A

Flash red simultaneously

43
Q

On the pak tracker, a combination of red, green, and white lights make up what color?

A

Orange

44
Q

When The low battery in the local transmitter in the pak tracker locator need changing, what lights will be on?

A

The light on he far right will light for 20 seconds hen flash once per second. It will still have enough battery to operate the HUD for the one hour cylinder.

45
Q

What is the maximum distance the pak tracker hhr can detect a signal and the maximum number of transmitters?

A

900’ and 36 transmitters

46
Q

The Scott air pak fifty has been upgraded and conforms to what nfpa standard?

A

1981, 2007 edition and 1982, 2008 edition

47
Q

The pak tracker hand held receiver left button is for?

A

Scrolling

48
Q

The pak tracker hand held receiver right button is for?

A

Locking on a particular transmitter

49
Q

The hand held receiver operates on what battery(ies)?

A

1 NiMH

50
Q

The hhr graphical bars incrementally illuminate when signal strength is greater than what %?

A

50%

51
Q

Pak tracker signals will pass through or not pass through windows, glass, wood, and light building materials.

A

Pass through

52
Q

Pak tracker signals will pass through or not pass through metal, large metals objects, concrete, brick or block construction

A

Not pass through

53
Q

How is the pak tracker hhr turned on?

A

Press both buttons simultaneously.

54
Q

Using the pak tracker hhr, to continue searching for another firefighter, clear the ID number by holding the _____button for ____seconds.

A

Scroll, 3 seconds

55
Q

How many batteries and what type power the personal tracker?

A

3 AAA

56
Q

How long wool the hhr batteries last?

A

Non tracking mode - 12 hours

Tracking mode - 6 hours

57
Q

What batteries does the pass transmitter take and how long do they last?

A

6 AA alakine

Automatic - green light no sound - 1000 hours, full alarm, red flashing - 8 hours

06. SCBA-Full (7 decks)

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