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2022 SCBA > Chapter 2 > Flashcards

Chapter 2 Flashcards

1
Q

The U.S. department of transportation regulations require that a hydrostatic test is performed on composite cylinders every _____ years by a certified testing facility.

A

5 years

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2
Q

The life span of a composite cylinder is ____ from date of manufacture.

A

15 years

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3
Q

The weight of a carbon fiber- wrapped cylinder is _____.

A

14 lbs.

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4
Q

A 45 minute rated composite cylinder contains _____ cubic feet of air pressurized to 5500 psi.

A

66 cubic feet

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5
Q

Scott AP 75 5.5 air-pak assembly weight?

A

30 lbs.

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6
Q

The 45 minute rating time calculation is based on a baseline breathing rate of ______ established by NIOSH.

A

40 LPM (liters per minute)

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7
Q

The rubber/plastic bumper at the base of the cylinder valve assembly contains what?

A

A radio frequency identification (RFID) chip

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8
Q

What does the RFID chip at the base of the cylinder log?

A

Information pertaining to the cylinder such as, fill date, fill time, fill location, member ID who filled, manufacture date and last hydrostatic date.

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9
Q

P.a.s.s (PASS) stands for what?

A

Personal
Alert
Safety
System

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10
Q

Dual EBSS (buddy breathing) hose is how long?

A

3 feet or 36’’ of hose

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11
Q

The Scott face piece is what model?

A

3M Scott vision C5 facepiece

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12
Q

The pressure reducer assembly is located where on the back frame?

A

Left side of the back frame

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13
Q

What does the pressure reducer assembly contain?

A
  • Redundant dual path reducing systems
  • Primary and secondary reducing circuits
  • automatic transfer valve
  • over pressure valve
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14
Q

The primary reducing circuit reduces the air pressure to ____________.

A

100 PSI

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15
Q

The secondary pressure reducing circuit reduces the pressure of the air flowing from the cylinder to the mask mounted breathing regulator from cylinder pressure to _____

A

150 PSI

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16
Q

The spray bar is comprised of ____ holes in the upper part of the regulator assembly.

A

9 holes

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17
Q

What is the purpose of the spray bar?

A

Keeps the face piece clear of condensation.

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18
Q

The breathing regulator produces a pressure of approximately ______ above atmospheric pressure inside the face piece.

A

.036- .054 psi

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19
Q

The SCBA safety relief device on the cylinder

A

Frangible copper disc

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20
Q

Photo luminescent identifier is attached to the _______ shoulder strap

A

Right

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21
Q

Photo luminescent identifier unit ID in color for the

A

Officer

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22
Q

Photo luminescent identifier colored background for

A

Firefighters

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23
Q

Storage pouch for the EBSS is on the

A

Left side

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24
Q

To connect the low pressure hose with the quick disconnect, the user must align the ________

A

Heads up display electrical connection

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25
Q

RIC/UAC is on the base of the harness on the ________ side

A

Left

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26
Q

The extra ___ psi supplied by the secondary pressure reducing circuit activates the vibralert alarm, an audible end of service time indicator.

A

50

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27
Q

Vibralert alarm is an audible and tactile End of Service Time Indicator (EOSTI) that warns the user that less than ____ of the full pressure _________ remains in the air supply cylinder.

A

33 % (1800 psi)

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28
Q

When air pressure remaining in the cylinder falls to ______ of the full pressure _______ or the primary reducing circuit fails in the closed position, a transfer valve opens allowing the secondary pressure reducing circuit to function.

A

33 % (1800 psi)

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29
Q

In the event the primary reducing circuit fails in the open position and the secondary reducing circuit opens, air at over ______psi to enter the outlet manifold , the relief valve on the outlet manifold will open.

A

225 psi

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30
Q

The outlet manifold of the pressure reducer assembly contains a resettable over pressure relief valve set at

A

225 psi

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31
Q

The auto air saver switch is located on the _______ side of the mask mounted breathing regulator.

A

Right

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32
Q

The purge valve is located on the _______ side of the mask mounted breathing regulator.

A

Left side

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33
Q

During normal operation, the purge valve shall be in the off position, with the indicator on the knob pointing to the ___________

A

Twelve o’clock position

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34
Q

A constant flow of at least _______, can be obtained by rotating the knob one half turn counterclockwise

A

4.4 cubic feet (125 liters per minute)

35
Q

If the vibralert alarm activates when the SCBA is in use, the wearer must

A

Immediately notify their officer and or partner and must immediately leave the contaminated atmosphere.

36
Q

Vibralert alarm could mean what of three things

A

Air is 33% (1800 psi)

Primary reducing circuit failed closed, secondary circuit is now in operation

Primary reducing circuit has failed open, air more than 225 psi has entered the outlet manifold. (You will hear loud air escaping)

37
Q

Heads up display consist of how many lights

A

Four rectangular for cylinder pressure and a fifth battery shaped to the right for low battery

38
Q

When turned on, the heads up display will illuminate all five lights for _______

A

20 seconds

39
Q

HUD 2 green lights

A

Full cylinder

40
Q

HUD 1 green light

A

Three quarters cylinder

41
Q

HUD 1 yellow light flashing slow at once a second

A

One half cylinder

42
Q

HUD 1 red light flashing 10 times a second

A

1/3 cylinder

43
Q

HUD the red light flashes how many times a second ______

A

10 times a second

44
Q

HUD the yellow light flashes _______ times a second

A

Once a second

45
Q

To avoid radio frequency interference, antennas of radios should be held ___ away from the control console with remote pressure gauge and the sensor module of the pak alert distress alarm.

A

6 inches

46
Q

The data logging feature records the date and time of the most recent ________ events.

A

Thousand events

47
Q

In monitoring mode, the Scott pak alert constantly monitors motion of the SCBA back frame. If the motion sensor does not sense motion of the SCBA for _____ , the pak alert will signal a pre alarm condition.

A

20 seconds

48
Q

If there is still no motion of the SCBA after the pre alarm, the full alarm will sound in _____ .

A

10 seconds

49
Q

Once activated in monitoring mode, the Scott pak alert will remain activated until

A

Cylinder is turned off (residual air purged) and reset button on the control module has been pressed twice.

50
Q

With fresh alkaline batteries, the pak alert will stay in monitoring mode (green flashing light with no sound) for about ______

A

1000 hours

51
Q

With fresh alkaline batteries, the pak alert will last in full alarm (red flashing light) for about __ hours.

A

8 hours.

52
Q

To reset the alarm on the control console, push the reset button ____

A

Twice

53
Q

The three sizes of the 3M Scott Vision C5 facepiece?

A

Small medium and large

54
Q

To transmit on a portable radio when wearing a facepiece, place the microphone ____ away from and in line with the speaking diaphragm.

A

1/2”

55
Q

Damaged facepiece must be

A

Tagged with SCBA repair request form and taken to the mask room for repair or replacement.

56
Q

If a defective facepiece cannot be immediately repaired, loaner facepieces are available through________?

A

The on duty safety battalion chief.

57
Q

Pak tracker can detect a signal up to _________

A

900 feet (straight line of sight)

58
Q

Pak tracker locator has been programmed to transmit a code that enables search teams to identify up to _____ locator transmitters simultaneously in alarm mode.

A

36

59
Q

Pak tracker frequency

A

2.44 GHz RF signal

60
Q

Pak tracker large start up buttons

A

Left (scroll)

Right (enter)

61
Q

Sensor module has what type of batteries and how many?

A

6 AA batteries

62
Q 
Sensor module lights
Start up (open cylinder)
A

Bright light then flash green

63
Q 
Sensor module lights
Normal operation
A

Flash green

64
Q 
Sensor module lights
Cylinder low air 1/3
A

Flash orange (alternating)

65
Q 
Sensor module lights
Low battery while on
A

Flash orange once a second

66
Q 
Sensor module lights
Shut down
A

Lights off

67
Q 
Sensor module lights
Press reset w/ unit off (battery test)
A

Bright light then

Flash green if good/ flash red if bad

68
Q 
Sensor module lights
Press manual alarm with unit off
A

Flash green then full alarm flash red

69
Q 
Sensor module lights
Press reset from manual alarm
A

Returns to flash green

70
Q 
Sensor module lights
Pass pre alarm
A

Flash red (alternating)

71
Q 
Sensor module lights
Pass full alarm
A

Flash red (simultaneously)

72
Q

If any malfunction of the Pak tracker locator is noted during inspection

A

Remove from service

Tag

Return to the mask room

73
Q

Turn on the pak tracker handheld receiver by

A

Pressing both select and scroll buttons simultaneously

74
Q

Handheld receiver (pak tracker) In non tracking mode, the batteries will last ___ hours.

A

12 hours

75
Q

Handheld receiver (pak tracker) in tracking mode the batteries will last ___ hours.

A

6 hours

76
Q

When the battery in the handheld receiver has approximately _____ of its life remaining. The “low batt” light will glow yellow.

A

20%

77
Q

The handheld receiver will operate for approximately ___ in the low battery condition.

A

45 minutes

78
Q

The handheld receiver battery can be recharged up to ______ times.

A

500

79
Q

Pak tracker receiver, The high intensity bars illuminate when the strength is greater than ______

A

50%

80
Q

Pak tracker hand held receiver, to clear the identification number on the handheld receiver by holding the scroll button down for ________-

A

3 seconds

81
Q

Transmitter designations (truck)

A 
DC T10 O officer     T-10-1
              L hook                 2
              R bar.                  3
              D driver.             4
              T tiller                 5

Hook L for leftside
Bar R for rightside

82
Q

Transmitter designations (rescue squad)

A 
DC RS3 O.          1
              TA.         2
              TB1.       3
              TB2.       4
              D.           5
83
Q

Transmitter designations (engine)

A

Dc E15 O. Officer 1
R. Line. 2
L. Layout. 3
D. Driver 4

2022 SCBA (8 decks)

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