Test Equipment (flotation) Flashcards
(26 cards)
Which components provides air pressure for inflating life preservers, rafts, and escape slides?
Air compressors.
Name 2 types of powered air compressors.
Electric motor and engine driven.
What valve opens to relieve excessive pressure if the pressure switch doesn’t shut down the electric motor that drives the air compressor?
Safety valve.
Whats the function of the air transformer (regulator)?
Remove oil/water from air and regulate pressure to the inflation device.
What must be open to remove oil and water from the air system?
Drain petcock
What is your primary goal after flotation equipment passes a leak test?
Completely deflate.
What can be used as part of a mobility package to deflate flotation equipment?
Industrial portable vacuum cleaner.
Describe a vacuum hose you use to deflate flotation equipment.
Light to medium weight, crush resistant, safety colored yellow material.
What type of air nozzle do we use to inflate flotation equipment and clean dust from sewing machine motors?
OSHA approved self relieving safety tape.
Name three air pressure indicators.
Water manometer, life raft test fixture, and 1.5 PSI gauge.
What are manometers used for?
Inspect poopi suits when required to pressurize to required inches of water column.
What may happen if you open both the air supply and feed valves of a test fixture at the same time?
PSI pressure gauge may over pressurize and break.
For water manometers, how does 28 inches of water compare to PSI?
Its = to 1 PSI.
How can you use a PSI gauge to obtain a direct reading of pressure on the multi-place rafts.
Install gauge to topping off valve of one flotation tube and air supply line to the other.
What is the function of the dial push/pull gauge?
Measure tension and compression.
When you pull from the top of a push/pull gauge what direction does the red indicator pointer rotate?
Clockwise.
How do you set a new zero index?
By rotating the bezel of the dial indicator.
How do you ensure accurate readings?
Maintain firm grip on the gauge.
What are four main components of the triple beam scale?
Round platform, aft poise bar with poise block, beam pointer, and forward poise bar with poise block.
What is the marked range on the aft poise bar?
0-1000g
What is the approximate weight of an LPU-10/P CO2 cylinder?
143.5g
What happens when you move the poise blocks or the CO2 cylinder without holding the beam pointer centered?
The triple beam scale will slam up or down.
What factors do you consider when determining a location for the digital scale within a flotation equipment section?
Put it on a sturdy level surface out of direct sunlight.
Which display key allows you to switch between the decimal pound and kilograms setting?
UNITS
