SCBA Flashcards

1
Q

Fire fighters should not enter atmosphere exceeding what degrees without full ppe and SCBA

A

120 ° fahrenheit

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2
Q

What are normal concentration of carbon dioxide in the atmosphere

A

300 ppm

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3
Q

What is the normal oxygen concentration in the atmosphere

A

20.9 %

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4
Q

What is the concentration of oxygen in an oxygen deficient atmosphere

A

Less than 19.5 %

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5
Q

Carbon monoxide unites with hemoglobin how many more times readily than oxygen does

A

210 times more

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6
Q

What is the Scott AP 75 5.5 SCBA cylinder made of

A

An aluminum shell over-wrapped with carbon fiber.

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7
Q

Who regulates the SCBA cylinder hydrostatic testing

A

Department of transportation (D.O.T)

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8
Q

What is the weight of a fully charged SCBA cylinder

A

14 lbs

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9
Q

How often should Hydrostatic test be done on SCBA cylinders

A

Every 5 years

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10
Q

What is the life span of a SCBA

A

15 years from date of manufacture

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11
Q

How many cubic feet of air is contained inside of an SCBA cylinder

A

66 cubic feet of air

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12
Q

How many psi is contained in a full SCBA

A

5500 psi

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13
Q

How long is the Dual EBSS hoes

A

3 feet

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14
Q

The primary pressure reducing circuit reduces air pressure from what to what

A

From 5500 psi (cylinder pressure) to 100 psi

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15
Q

What is the over pressure relief valve set too

A

225 psi

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16
Q

SCBA cylinders should be changed when air falls below what PSI

A

5000 psi

17
Q

What is level 1 damage to the SCBA cylinder

A

Cuts or scratches involving outer surface only

18
Q

SCBA cylinders with damage greater than what level should be placed out of service

A

Damage greater than Level 1

19
Q

When will 1 green light show on heads up display

A

When PSI drops to approximately 4000 psi

20
Q

When will yellow light appear on SCBA heads up display

A

When air pressure drops to approximately 2750 psi

21
Q

What happens to SCBA heads up display when air pressure drops to1800 psi

A

The vibralert will sound and the red light on the SCBA heads up display will flash rapidly for 10 second

22
Q

Who should all SCBA harness defects be reported to

A

The Air unit

23
Q

Who shall defective facepieces be reported to

A

The Safety Chief

24
Q

How long is the High pressure hose on the RIC/UAC

A

25 feet

25
Q

How long is the low pressure hoes on the RIC/UAC

A

20 feet

26
Q

When whill the Low air whistel activate on the RIC/UAC

A

When air pressure drops to 25% of a full bottle

27
Q

What are the 2 main categories for emergency air supply

A

Supply of compressed air, and component replacement.

28
Q

What are the responsibilities of the 2 person team responsible for the RIC/UAC

A

Air management, and packaging

29
Q

Who is the air management firefighter for the RIC/UAC

A

The hook position

30
Q

Who is responsible for packaging the down firefighter when operating the RIC/UAC

A

The Bar position

31
Q

How long does it take a full scba cylinder to transfill a completely empty SCBA and equalize.

A

Approximately 45 seconds