SOP 74 part deux
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Questions and Answers

What evidence indicates that an SCBA cylinder should be removed from service?

  • Elastomeric materials distorted
  • Paint turning to a brown or black color
  • Melted gauge lens (correct)
  • Missing decals

    • At what pressure should an SCBA cylinder be refilled according to the guidelines?

  • Below 90% pressure (correct)
  • 80% pressure
  • 100% pressure
  • Above 90% pressure

    • What action should be taken before altering a component of an SCBA cylinder?

  • Modify it as needed
  • Substitute a different component
  • Do not alter it
  • Seek manufacturer approval (correct)

    • What happens to the duration of an SCBA when it is used partially charged?

    <p>Reduces</p> Signup and view all the answers

    What is the purpose of the pressure relief device on an SCBA cylinder?

    <p>Protect a fully charged cylinder in case of fire</p> Signup and view all the answers

    How should SCBA cylinders be stored for maximum safety?

    <p>Above ambient pressure but less than 100psig</p> Signup and view all the answers

    At what pressure should the Audi-Larm Alarm start to ring and tone?

    <p>1175 psig</p> Signup and view all the answers

    What should you do if the Audi-Larm Alarm, ICM Unit Gauge or IHUD does not function properly?

    <p>Remove the apparatus from service</p> Signup and view all the answers

    What should you do if the Audi-Larm coupling nut is damaged?

    <p>Replace the O-ring and the coupling nut</p> Signup and view all the answers

    How often should all SCBA units assigned to a station be inspected?

    <p>Weekly</p> Signup and view all the answers

    Who is responsible for ensuring the inspection and record-keeping requirements are carried out?

    <p>The station officers</p> Signup and view all the answers

    How often are SCBA units inspected and leak tested by a certified MSA Level II trained repairperson?

    <p>Annually</p> Signup and view all the answers

    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?

    <p>Remove the bottle from service</p> Signup and view all the answers

    What should you do if the second stage regulator is free-flowing?

    <p>Immediately remove the SCBA from service</p> Signup and view all the answers

    What should you do if the integrated PASS device is not operable?

    <p>Remove the SCBA from service</p> Signup and view all the answers

    What should you do if the IHUD does not activate when the system is charged?

    <p>Remove the SCBA from service</p> Signup and view all the answers

    According to the warnings, what is the Quick-Fill system not intended to be used for?

    <p>Providing air to two users simultaneously</p> Signup and view all the answers

    What is the maximum working pressure rating for the high-pressure air mask when using the Quick-Fill system?

    <p>4500 psig</p> Signup and view all the answers

    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?

    <p>Reconnect the Quick-Fill system hose to seal the leak</p> Signup and view all the answers

    When transfilling air between SCBA, which SCBA is considered the donor?

    <p>The SCBA with the higher pressure reading</p> Signup and view all the answers

    What should be done if the donor's audible alarm begins ringing or HUD/ICM Unit Gauge begins flashing during transfilling?

    <p>The donor should disconnect and preserve their escape time</p> Signup and view all the answers

    What is the minimum pressure required in the donor SCBA cylinder to perform transfilling?

    <p>2000 psig</p> Signup and view all the answers

    After connecting the Quick-Fill system hose between the donor and receiver SCBA, how long does it typically take for the pressure to equalize?

    <p>30-60 seconds</p> Signup and view all the answers

    What should be done immediately after disconnecting the Quick-Fill system hose from the SCBA?

    <p>Install the dust cover on the Quick-Fill system male fitting</p> Signup and view all the answers

    What is the purpose of the ICM Tx Unit's Pressure Display?

    <p>To show the remaining air pressure in the SCBA cylinder</p> Signup and view all the answers

    What is the purpose of the ICM Tx Unit display?

    <p>Both a and b</p> Signup and view all the answers

    What does the IHUD receiver display when the pressure reaches 33% of the rated service pressure?

    <p>One flashing RED LED</p> Signup and view all the answers

    How can you toggle the display mode on the ICM Tx Unit between remaining cylinder pressure and calculated remaining service life?

    <p>Press the top mode button (green) twice</p> Signup and view all the answers

    What is a potential issue with the calculated remaining service life displayed on the ICM Tx Unit?

    <p>Actual time remaining may be less than the calculated time displayed</p> Signup and view all the answers

    What should you do before replacing the battery cover on the ICM Tx Unit?

    <p>Verify that the battery cover gasket is in place and free from damage/debris</p> Signup and view all the answers

    What should you do if the IHUD receiver's battery cap is damaged?

    <p>Replace the battery cap</p> Signup and view all the answers

    What should you check during the inspection of the IHUD receiver?

    <p>All of the above</p> Signup and view all the answers

    Which of the following should you NOT check during the inspection of the ICM Tx Unit?

    <p>The battery level of the ICM Tx Unit</p> Signup and view all the answers

    What should you do if you find visible signs of damage to components during the inspection of the ICM Tx Unit?

    <p>Replace the damaged components or the entire ICM Tx Unit</p> Signup and view all the answers

    How often should you inspect the SCBA and ICM Tx Unit?

    <p>After each use and during normal weekly checks</p> Signup and view all the answers

    Who is authorized to make repairs to any SCBA unit?

    <p>Any individual certified by the manufacturer to perform the required repairs</p> Signup and view all the answers

    What is the requirement for SCBA units needing repair or adjustment?

    <p>They must be marked with a tag stating 'Danger - Do Not Use' and a description of the problem</p> Signup and view all the answers

    What is the requirement for the breathing air used in the SCBA units?

    <p>The breathing air must meet the specifications for Grade D air as described in the Compressed Gas Association's Commodity Specification</p> Signup and view all the answers

    What is the requirement for the air compressors used to supply breathing air?

    <p>The air compressors must be equipped with both a high temperature alarm and a carbon monoxide alarm</p> Signup and view all the answers

    How often must the SCBA/SAR escape cylinders be inspected?

    <p>They must be inspected monthly</p> Signup and view all the answers

    What is the maximum age for composite or fiberglass wrapped SCBA cylinders?

    <p>15 years</p> Signup and view all the answers

    What is the purpose of the 'Danger - Do Not Use' tag placed on SCBA units needing repair or adjustment?

    <p>To indicate that the unit is in need of repair and cannot be used until it is fixed</p> Signup and view all the answers

    What is the requirement for breathing air hose couplings used by the Department?

    <p>The couplings must be incompatible with other fittings used by the Department</p> Signup and view all the answers

    What is the requirement for steel SCBA cylinders with a hydrostatic test date over 5 years old?

    <p>They must be removed from service until retested</p> Signup and view all the answers

    What is the requirement for composite or fiberglass wrapped SCBA cylinders that are over 15 years old?

    <p>They must be removed from service permanently</p> Signup and view all the answers

    What should be done if the SCBA passes the inspection?

    <p>Place the SCBA back in service</p> Signup and view all the answers

    Which cleaning solution should be used to clean the SCBA components?

    <p>Confidence Plus Cleaning Solution from MSA</p> Signup and view all the answers

    Why should alcohol not be used as a germicide when cleaning the SCBA?

    <p>It may deteriorate rubber parts</p> Signup and view all the answers

    What should be done if the exhalation valve does not work properly after cleaning the facepiece?

    <p>Return the regulator and facepiece to Logistics for repair</p> Signup and view all the answers

    What should be done if the regulator makes any unusual sounds, such as whistling, chattering, clicking, or rattling?

    <p>Remove the SCBA from service and notify Logistics</p> Signup and view all the answers

    What should be done to ensure the IHUD system and Audi-Larm are functioning properly?

    <p>Pressurize the system by opening the cylinder valve, then close it and check that the alarms ring or tone</p> Signup and view all the answers

    What should be done if the negative pressure cannot be maintained in the facepiece during the functional test?

    <p>Repair the facepiece and regulator</p> Signup and view all the answers

    What should be done if the bypass valve is not functioning properly?

    <p>Remove the SCBA from service and notify Logistics</p> Signup and view all the answers

    How should the SCBA components be dried after cleaning?

    <p>Use a towel or air-dry the apparatus before reassembly</p> Signup and view all the answers

    What should be done if the SCBA is soiled?

    <p>Use a sponge damp with mild soap solution or a soft/medium bristle brush to remove deposits</p> Signup and view all the answers

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