55 Questions
What evidence indicates that an SCBA cylinder should be removed from service?
Melted gauge lens
At what pressure should an SCBA cylinder be refilled according to the guidelines?
Below 90% pressure
What action should be taken before altering a component of an SCBA cylinder?
Seek manufacturer approval
What happens to the duration of an SCBA when it is used partially charged?
Reduces
What is the purpose of the pressure relief device on an SCBA cylinder?
Protect a fully charged cylinder in case of fire
How should SCBA cylinders be stored for maximum safety?
Above ambient pressure but less than 100psig
At what pressure should the Audi-Larm Alarm start to ring and tone?
1175 psig
What should you do if the Audi-Larm Alarm, ICM Unit Gauge or IHUD does not function properly?
Remove the apparatus from service
What should you do if the Audi-Larm coupling nut is damaged?
Replace the O-ring and the coupling nut
How often should all SCBA units assigned to a station be inspected?
Weekly
Who is responsible for ensuring the inspection and record-keeping requirements are carried out?
The station officers
How often are SCBA units inspected and leak tested by a certified MSA Level II trained repairperson?
Annually
What should you do if you detect a steady drop in pressure (100 psi in 10 seconds) on the ICM Tx unit after turning off the bottle?
Remove the bottle from service
What should you do if the second stage regulator is free-flowing?
Immediately remove the SCBA from service
What should you do if the integrated PASS device is not operable?
Remove the SCBA from service
What should you do if the IHUD does not activate when the system is charged?
Remove the SCBA from service
According to the warnings, what is the Quick-Fill system not intended to be used for?
Providing air to two users simultaneously
What is the maximum working pressure rating for the high-pressure air mask when using the Quick-Fill system?
4500 psig
If the dust cover does not stay on the male fitting due to air leakage while transfilling in a contaminated atmosphere, what should be the first step?
Reconnect the Quick-Fill system hose to seal the leak
When transfilling air between SCBA, which SCBA is considered the donor?
The SCBA with the higher pressure reading
What should be done if the donor's audible alarm begins ringing or HUD/ICM Unit Gauge begins flashing during transfilling?
The donor should disconnect and preserve their escape time
What is the minimum pressure required in the donor SCBA cylinder to perform transfilling?
2000 psig
After connecting the Quick-Fill system hose between the donor and receiver SCBA, how long does it typically take for the pressure to equalize?
30-60 seconds
What should be done immediately after disconnecting the Quick-Fill system hose from the SCBA?
Install the dust cover on the Quick-Fill system male fitting
What is the purpose of the ICM Tx Unit's Pressure Display?
To show the remaining air pressure in the SCBA cylinder
What is the purpose of the ICM Tx Unit display?
Both a and b
What does the IHUD receiver display when the pressure reaches 33% of the rated service pressure?
One flashing RED LED
How can you toggle the display mode on the ICM Tx Unit between remaining cylinder pressure and calculated remaining service life?
Press the top mode button (green) twice
What is a potential issue with the calculated remaining service life displayed on the ICM Tx Unit?
Actual time remaining may be less than the calculated time displayed
What should you do before replacing the battery cover on the ICM Tx Unit?
Verify that the battery cover gasket is in place and free from damage/debris
What should you do if the IHUD receiver's battery cap is damaged?
Replace the battery cap
What should you check during the inspection of the IHUD receiver?
All of the above
Which of the following should you NOT check during the inspection of the ICM Tx Unit?
The battery level of the ICM Tx Unit
What should you do if you find visible signs of damage to components during the inspection of the ICM Tx Unit?
Replace the damaged components or the entire ICM Tx Unit
How often should you inspect the SCBA and ICM Tx Unit?
After each use and during normal weekly checks
Who is authorized to make repairs to any SCBA unit?
Any individual certified by the manufacturer to perform the required repairs
What is the requirement for SCBA units needing repair or adjustment?
They must be marked with a tag stating 'Danger - Do Not Use' and a description of the problem
What is the requirement for the breathing air used in the SCBA units?
The breathing air must meet the specifications for Grade D air as described in the Compressed Gas Association's Commodity Specification
What is the requirement for the air compressors used to supply breathing air?
The air compressors must be equipped with both a high temperature alarm and a carbon monoxide alarm
How often must the SCBA/SAR escape cylinders be inspected?
They must be inspected monthly
What is the maximum age for composite or fiberglass wrapped SCBA cylinders?
15 years
What is the purpose of the 'Danger - Do Not Use' tag placed on SCBA units needing repair or adjustment?
To indicate that the unit is in need of repair and cannot be used until it is fixed
What is the requirement for breathing air hose couplings used by the Department?
The couplings must be incompatible with other fittings used by the Department
What is the requirement for steel SCBA cylinders with a hydrostatic test date over 5 years old?
They must be removed from service until retested
What is the requirement for composite or fiberglass wrapped SCBA cylinders that are over 15 years old?
They must be removed from service permanently
What should be done if the SCBA passes the inspection?
Place the SCBA back in service
Which cleaning solution should be used to clean the SCBA components?
Confidence Plus Cleaning Solution from MSA
Why should alcohol not be used as a germicide when cleaning the SCBA?
It may deteriorate rubber parts
What should be done if the exhalation valve does not work properly after cleaning the facepiece?
Return the regulator and facepiece to Logistics for repair
What should be done if the regulator makes any unusual sounds, such as whistling, chattering, clicking, or rattling?
Remove the SCBA from service and notify Logistics
What should be done to ensure the IHUD system and Audi-Larm are functioning properly?
Pressurize the system by opening the cylinder valve, then close it and check that the alarms ring or tone
What should be done if the negative pressure cannot be maintained in the facepiece during the functional test?
Repair the facepiece and regulator
What should be done if the bypass valve is not functioning properly?
Remove the SCBA from service and notify Logistics
How should the SCBA components be dried after cleaning?
Use a towel or air-dry the apparatus before reassembly
What should be done if the SCBA is soiled?
Use a sponge damp with mild soap solution or a soft/medium bristle brush to remove deposits
Test your knowledge on safety precautions for Self-Contained Breathing Apparatus (SCBA) cylinders. Learn about when to remove a cylinder from service, the importance of proper filling pressure, and the guidelines for altering components with manufacturer approval.
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