SCBA and Personal Protective Clothing Questions with 100% Correct Answers | Latest Update | Verified
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Course
SCBA and Personal Protective Clothing
Institution
SCBA And Personal Protective Clothing
Air cylinders rated for 30 minutes of breathing air provide a firefighter with a minimum of 30 minutes of
breathing time - False
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 ...
SCBA and Personal Protective Clothing
Air cylinders rated for 30 minutes of breathing air provide a firefighter with a minimum of 30 minutes of
breathing time - False
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
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
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
The ____ is the heaviest part of the breathing apparatus - cylinder
An unfilled cylinder can weigh as much as 20 pounds (9.5kg) - True
, The ensure a proper fit for SCBA, the backpack and harness assembly must be custom ordered from a
manufacturer - False
Positive-Pressure SCBA keeps pressure in the face piece _____ atmospheric pressure - Slightly
higher than
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
What are the four SCBA regular assembly components - 1. Regulator
2. Pressure-reducing device
3. Remote pressure gauge
4. Low-pressure alarm
Usually has two regulator
bypass valvue or purge valve is used to bleed
The first stage regulator reduces the high-pressure cylinder air and allows it to be carried to the mask. -
True
What is the SCBA bypass valve used for? (Select all that apply) - 1. PROVIDES AIR FROM THE
PRESSURE-REDUCING DEVICE IN THE EVENT OF REGULATOR FAILURE
2. repressurizes the face-piece
3. expels exhaled carbon dioxide
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