SCBA and Personal Protective Clothing
Questions and Correct Answers | Latest
Update
Positive-Pressure SCBA keeps pressure in the face piece _____ atmospheric pressure
✓ -:- Slightly higher than
Positive-pressure SCBA keeps pressure in the face piece slightly higher than atmospheric
pressure. The positive pressure helps by:
✓ -:- Keeping outside contaminants from getting into the face piece
which are the basic components of open-circuit SCBA?(Select all that apply)
✓ -:- 1. AIR-CYLINDER ASSEMBLY
2. FACE-PIECE ASSEMBLY
3. REGULATOR ASSEMBLY
4. HARNESS ASSEMBLY
Open-Circuit SCBA is the most frequently used type in the fire service
✓ -:- True
1|P a g e | G r a d e A + | 2 0 2 0 2 5
,2024 /2025 | © copyright | This work may not be copied for profit gain Excel!
When the air-cylinder valve is open, the regulator assembly controls the flow of air through
the system
✓ -:- True
Air cylinders are rated for ____ minutes of breathing air.
✓ -:- 30, 45 or 60
Which statements about SCBA was it straps are true? (Select all that appl
✓ -:- 1. MAKE IT LESS LIKELY FOR THE CYLINDER TO GET CAUGHT
ON OBSTRUCTIONS 2. HELP PREVENT BACK INJURIES AND FALLS
3. PREVENT THE SIDE-TO SIDE MOVEMENT OF THE CYLINDER
4. Only units weighing more than 30 pounds (14 kg) need waist straps
The ____ is the heaviest part of the breathing apparatus
✓ -:- cylinder
An unfilled cylinder can weigh as much as 20 pounds (9.5kg)
2|P a g e | G r a d e A + | 2 0 2 0 2 5
, 2024 /2025 | © copyright | This work may not be copied for profit gain Excel!
✓ -:- True
The ensure a proper fit for SCBA, the backpack and harness assembly must be custom
ordered from a manufacturer
✓ -:- False
which are components of the air-cylinder assembly?
✓ -:- 1. Regulator
2. CYLINDER VALVE
3. PRESSURE GAUGE
4. CYLINDER
High-pressure cylinders are rated at _____ pounds per square inch (psi)
✓ -:- 4500
Cylinders may be made of: (Select all that apply)
✓ -:- 1. STEEL
2. titanium
3|P a g e | G r a d e A + | 2 0 2 0 2 5