Questions and Answers
Which component of the cylinder valve assembly is designed to vent pressure safely if the cylinder is over-pressurized?
At what percentage of the SCBA's rated service pressure does the primary low pressure warning device (bell alarm) actuate?
Which part of the G1 Carrier and Harness Assembly houses the power module, battery module, and pressure reducer?
What is the drag rating for the hop handle of the backplate?
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What is the purpose of the metal cylinder band and latch in the cylinder band of the harness assembly?
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What feature of the shoulder pads helps prevent slippage of the straps?
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What material is used to increase visibility on the shoulder pads?
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How are the tunnels on the shoulder pads released?
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Study Notes
Cylinder Valve Assembly
- Large pressure gauge with a photoluminescent face
- Non-locking handwheel
- Pressure-relief device vents pressure safely if the cylinder is over-pressurized
Primary Low Pressure Warning Device (Bell)
- Bell alarm actuates at 35% of the SCBA's rated service pressure during use
- Activates at approximately 1575 PSI and 16 minutes of remaining service
G1 Carrier and Harness Assembly
- Backplate houses power module, battery module, and pressure reducer
- Cylinder band with latch to hold the cylinder
- Shoulder pads for weight distribution and visibility
- Adjustable pull straps for a secure fit
- Lumbar pad for comfort
- Waist belt for support
- Regulator Keeper for organization
Backplate
- Ergonomic design for easy handling and storage
- Hop handle has a drag rating of 1000 lbs
- Side handles are rated to 500 lbs
Cylinder Band
- Metal band and latch securely retain the cylinder
- Rigid opening for easy cylinder installation and removal
Shoulder Pads
- Weight distribution across the shoulder
- Friction pads prevent slippage of straps
- Retroreflective material for increased visibility
- Steel buckles provide a secure fit
- Tunnels release using snap buttons for easy swapping or repair
- Identifiable inside and outside straps with print/stitching
- Facepiece clip can be attached to either shoulder strap
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Description
This quiz covers the components and features of SCBA cylinder valve assembly, primary low pressure warning device, and G1 carrier and harness assembly.
