Type II — High-Pressure第 138 / 240 题
A technician handles a high-pressure refrigerant cylinder in a hot truck bed in summer. Which practice is safest for storing and transporting the cylinder?
a.Leave it in direct sun to keep pressure high
b.Fill it to 100% so no air gets in
c.Store it lying on its side near an open flame
d.Keep it out of direct sun and below its temperature rating, secured upright, and never over 80% full
解析
High-pressure cylinders should be kept out of direct sun and below their temperature rating, secured upright, and never filled beyond 80% of capacity, because heat raises internal pressure and overfilled cylinders can rupture. Direct sunlight and heat sources dangerously increase pressure. Cylinders must also be kept away from open flames and secured so they cannot fall.
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