Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SGT Exam > SCBA Manual > Flashcards

SCBA Manual Flashcards

1
Q

What are the by-products of the combustion process:

A

heat, smoke, and toxic gases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Smoke contains combustion byproducts and contaminants that are harmful to human health. These byproducts generate ___ ____ _____ etc

A

volatile organic compounds [VOCs], toxic microscopic particulate
matter, heavy metals i.e., arsenic, chromium, mercury, lead, phosphorous, copper and carcinogen
chemicals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Firefighters should not enter atmospheres with temperatures exceeding ___ degrees Fahrenheit
without protective clothing and FULL respiratory protection.

A

120

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

If the oxygen content is limited during the combustion process, large amounts of ____ _____ ______

A

formic acid, carbolic acid, acetic acid, and ethyl alcohol, along with carbon and tar particles are produced.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

It is estimated that __ percent of all fire casualties succumb to the toxic effects of fire gases before ever being touched by flame.

A

80

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Studies into the hazardous properties of fire gases have shown that the following gases are the primary cause of fire deaths due to toxic gas inhalation: which type of gases?

A

carbon monoxide (CO), carbon dioxide (CO,), hydrogen sulfide (H2S), sulfur dioxide (SO2), hydrogen cyanide (HCN), hydrogen chloride (HO), and phosgene (COCI2).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

____ _____ - a colorless, odorless, flammable gas, is slightly lighter than air.

A

Carbon monoxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Department standards dictate that the SCBA will be utilized when the concentration of carbon monoxide exceeds ___ ppm

A

35

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The normal concentration of carbon dioxide in the atmosphere is ____ ppm

A

300

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

_____ _____ - a colorless, odorless, nonflammable gas, is produced by the combustion process.

A

Carbon Dioxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

_____ _____ - It is a colorless gas with the characteristic foul odor of “rotten eggs”; it is heavier than air, very poisonous, corrosive, flammable and explosive.

A

HYDROGEN SULFIDE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

____ ______ - has an extremely irritating effect on the eyes and respiratory tract, however, the quantity produced by the combustion process is too small to be considered toxic.

A

Sulfur dioxide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

____ ____ - is a colorless gas produced by the combustion of materials containing chlorine. Polyvinyl chloride (PVC) is the most notable source

A

Hydrogen chloride

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

_____ ______ - This gas, which has a noticeable “bitter almond” odor, can cause gasping respiration, muscle spasms, and an increased heart rate.

A

HYDROGEN CYANIDE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

It is during the _______ stage when materials that contain PVC will give off chlorine gas.

A

overhaul

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

_______ - is a colorless gas produced when refrigerants, such as Freon, used in refrigerators, air conditioners, and beverage coolers encounter flame. It has a “musty hay” odor, which serves as the only indication to its presence.

A

Phosgene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Normal-fresh air exists at _____% oxygen concentration in the atmosphere. Acceptable low oxygen as defined by OSHA exists between 20.9% -19.5%.

A

20.9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The earth’s atmosphere is composed of approximately ___ percent oxygen, ____ percent nitrogen, and _ percent other gases.

A

21, 78, 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

U.S. Department of Transportation (D.O.T.) regulations require that a hydrostatic test is performed on composite cylinders every ____ years by a certified testing facility.

A

5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The 3M Scott AP 75 5.5 SCBA is supplied by a composite air supply cylinder made from an aluminum shell over-wrapped with ___ _____

A

carbon fiber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Carbon monoxide unites with hemoglobin ____ times more readily than does oxygen.

A

210

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

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

A

15

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

the weight of a charged carbon fiber-wrapped cylinder is ___ lbs.

A

14

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When installed in the NFPA 1981, 2013 edition compliant 3M Scott AP 75 5.5 Air-Pak assembly, the weight is _____ lbs.

A

30

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The 45-minute rating time calculation is based on a baseline breathing rate of ___ LPM (liters per minute) established by NIOSH.

A

40

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

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

A

66

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The harness assembly consists of two shoulder straps and a waist belt made of _____

A

Kevlar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

To connect the low-pressure hose with quick disconnect, the user _____ align the heads up display electrical connection.

A

must

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The primary reducing circuit reduces the air pressure to ____psi, and air is sent through the low-pressure hose to the mask-mounted breathing regulator where it is further reduced in pressure.

A

100

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The over pressure relief valve vents excess pressure to the atmosphere to protect the low-pressure hose and breathing regulator from pressure over ___ psi should the primary reducing circuit fail in the open position.

A

225

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
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 ___ psi.

A

150

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

With the facepiece properly sealed to the face, the breathing regulator produces a pressure of approximately ___ to ___ psi above atmospheric pressure inside the facepiece.

A

.036 to .054

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The regulator is equipped with a spray bar, comprised of ___ holes in the upper part of the regulator assembly.

A

9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

A constant flow of at least ___ cubic feet per minute (125 liters per minute), can be obtained by rotating the knob one half turn counterclockwise.

A

4.4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

The heads-up display consists of four rectangular lights to represent the cylinder pressure and a fifth battery-shaped red light, found to the right of the rectangular lights, indicates ___ ______

A

LOW BATTERY

32
Q

ONE-HALF Cylinder is indicated by the yellow light flashing slowly at how many times a second?

A

once

33
Q

ONE-THIRD Cylinder end of service time indicator is indicated by the red light at the far left of the display rapidly flashing at _____ times a second.

A

10

34
Q

When the 3M Scott AP 75 5.5 SCBA is turned on, the heads-up display will initialize and illuminate all five (5) lights for _____ seconds.

A

20

35
Q

To avoid radio frequency interference members shall keep antennas of hand-held radios at least ____ inches away from the Control Console with Remote Pressure Gauge, and the Sensor Module of the Pak-Alert distress alarm.

A

6

35
Q

The 3M Scott AP 75 5.5 SCBA, as required by NFPA 1982, is also equipped with a Data Logging feature. The Data Logging feature records the date and time of the most recent ____ events.

A

1,000

36
Q

If the motion sensor does not sense motion of the SCBA for __ seconds, the Pak-Alert will signal a pre-alarm condition. If there is still no motion of the SCBA in the next __ seconds, the full alarm will sound.

A

20, 12

37
Q

With fresh alkaline batteries, the Pak-Alert will stay in monitoring mode (green flashing light with no sound) for about ____ hours.

A

1000

38
Q

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

A

8

39
Q

To transmit on a portable radio when wearing the 3M Scott Vision C5 facepieces, place the radio microphone about ___” away from, and in line with a speaking diaphragm, and speak normally.

A

1/2

39
Q

If the defective facepiece cannot be immediately repaired, loaner facepieces are available through
the on-duty ___ ___ ____.

A

Safety Battalion Chief

40
Q

The Pak-Tracker HHR can detect a signal up to ____ feet in a straight line of sight and has the capability of penetrating through thick smoke in a structural fire.

A

900

41
Q

Each Pak-Tracker Locator Transmitter has been programmed to transmit a code that enables search teams to identify up to ___ locator transmitters simultaneously in alarm mode.

A

36

42
Q

The technology behind the Pak-Tracker HHR consists of a universal high frequency ____ GHz RF signal that is tracked using the hand-held receiver.

A

2.44

43
Q

The Pak- Tracker transmitter is inside the sensor module assembly with the motion sensor, the audible alarm, and ___ “AA” batteries.

A

6

44
Q

The rechargeable battery can be recharged up to ___ times.

A

500

44
Q

To continue searching for another firefighter, clear the identification number on the handheld receiver by holding the scroll button down for ___ seconds.

A

3

44
Q

When the battery in the Handheld Receiver has approximately ___% of its life remaining, the “Low Batt” indicator light on the display panel will glow yellow. Which allows how much longer until the battery dies?

A

20, 45

45
Q

The Handheld Receiver is powered and operates on one rechargeable NiMH battery. In non-tracking mode, the batteries will last approximately __ hours. In tracking mode, the batteries will last approximately __ hours.

A

12, 6

46
Q

The high intensity graphical bars incrementally illuminate when signal strength is greater than __%.

A

50

46
Q

The large LCD panel on the Pak-Tracker HHR will visually display up to ___ active transmissions at a time.

A

2

47
Q

When the signal strength number is __ or higher, the receiver will produce a variable pitch tone once per second that corresponds to the signal strength (stronger signal will produce a higher pitch tone and a weaker signal will produce a lower pitch tone).

A

51

48
Q

A “full” cylinder is indicated by the pressure gauge indicator being just to the ____ of “F” in FULL.

A

left

49
Q

Cylinders with damage greater than Level ___ shall be placed out of service.

A

1

50
Q

The unit will enter the pre-alert mode at ___ seconds; the additional ___ seconds will cause the unit to enter the alarm mode.

A

20, 12

50
Q

Check the heads-up display that all five lights light for ___ seconds after which the two green lights, indicating full, should be lit.

A

20

51
Q

When the air pressure drops to approximately ______ psi (approximately 3⁄4 of the full cylinder), the heads-up display (HUD) should indicate a single green light.

A

4,000

52
Q

When the air pressure drops to approximately _____ psi (approximately 1⁄2 of a full cylinder), the heads-up display (HUD) should indicate the yellow light.

A

2,750

53
Q

When the air pressure drops to approximately _____ psi (1/3 as indicated on the gauge), listen for the Vibralert to function and the red light on the heads-up display should be flashing rapidly at 10 times a second.

A

1,800

53
Q

The Pak-Alert will check for zero air pressure for __ seconds and will turn off if it senses that all pressure has been discharged.

A

15

54
Q

RIT PACK - Open the purge valve 1⁄2 turn to the open position – air should flow and low-pressure whistle should sound at ___% cylinder pressure (1300psi).

A

25

55
Q

perform a rapid assessment of the downed firefighter’s SCBA. The ABC’S acronym may be used to perform an organized assessment:

A

Airway
Breathing
Cylinder
Straps

55
Q

Defective facepieces shall be reported to the on-duty ____ ____ _____

A

Safety Battalion Chief

56
Q

Emergency air supply can be broken down into two main categories:

A

-supply of compressed air for breathing
-component replacement to remedy a failed or missing component.

57
Q

The “air management” firefighter will be the ___ position on the truck unless otherwise directed company

A

Hook

58
Q

The “packaging firefighter” will be the _____ position on the truck responsible for doing all downed firefighter packaging

A

Barman

58
Q

EBSS - The air in the cylinder with the _____ pressure is consumed first.

A

Lowest

59
Q

A completely full (5500psi) cylinder supplying a completely empty cylinder takes approximately ___ seconds to trans fill and will equalize at approximately 2250psi (some pressure is lost to pressurizing the system, heat transfer from filling and from Vibralert activation.)

A

45

60
Q

Webbing should be cleaned with ____ and ____

A

soap and water

61
Q

Disinfect the facepiece by spaying the facepiece with Fresh-Gear on the both sides of the facepiece. Allow ___ minutes of contact time prior to rinsing.

A

10

62
Q

Rinse the facepiece assembly with water, Use tepid water to clean the unit. (___ degrees F maximum), NEVER wash the facepiece with hot water.

A

110

63
Q

The user shall check the SCBA harness for debris and materials which may require it to be wiped down with a ____ _____ (water only). Care should be taken not to allow water to enter the regulator.

A

damp rag

64
Q

The only cleaning materials that are to be used to clean the air supply cylinder are ____ ___ and ___ _____. To prevent injuries to personnel from flying debris compressed air from an SCBA cylinder shall NEVER be used for cleaning.

A

Fresh-Gear and liquid dish detergent

65
Q

The Department maintains ____ air compressors. Four are located at fixed facilities, Engine Co. 4, Engine Co. 8, the Fire Training Academy and Adams Place Warehouse. The fifth is mobile and is carried on Mobile Air Unit.

A

5

66
Q

Air-Unit - Call each battalion headquarters and stations that have breathing air and or oxygen, by ____ hours daily

A

0730

67
Q

The Air Units shall maintain a minimum of ____ ready for service harnesses on the unit at all times. Additional harnesses shall be obtained from the Mask Room.

A

5

68
Q

Air Unit - Arrival on the fire ground:

A

Report to the Command Post with PAT tag and portable radio

69
Q

Perform PPE hood exchange on events as necessary. Each Air Unit shall maintain an inventory of __ exchangeable hoods.

A

30

70
Q

Air-Unit- Service rounds shall be made between ___ - _____ hours, and as necessary

A

0800-1200

71
Q

The unit is equipped with ____ Scott AP 75 5.5 SCBA harnesses. Air unit technicians shall maintain ____ harnesses on the unit at all times.

A

5, 5

72
Q

The pressure reducer, now operating from the Primary Stage, sends air pressure in the range of ___ to ___ psig to the mask mounted regulator.

A

85 to 110

73
Q

Air passing through the Secondary pressure reducer piston and porting is sent through the outlet port to the mask mounted regulator at a pressure of __ to ___ psig, momentarily activating the Vibralert end-of-service alarm, situated inside the mask mounted regulator.

A

145 to 165

74
Q

The purge knob on the side of the mask mounted regulator is a manual override allowing the user to create a constant flow of air into the facepiece at a flow of up to ___ liters per minute.

A

225

SGT Exam (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions