Safety
Cylinders & Storage
Acetylene Gas
Regulators & Hoses
100

This shade range of lens protects your eyes from UV rays while welding.

A number 3 to 5 shade lens?

100

The material oxygen cylinders are forged from, with a minimum wall thickness of 1/4 inch.

A solid armor plate steel.

100

The man-made product that reacts with water to produce acetylene.

 Calcium carbide

100

The color of the oxygen hose and the color of the acetylene hose.

 Green and red.

200

This condition, caused by the tip being too close to the metal, makes the flame blow out.

A backfire.

200

The pressure, in PSI, to which new oxygen cylinders are tested using a hydrostatic test.

Over 3,300 PSI

200

This substance is present inside the cylinder to stabilize the acetylene.

Acetone.

200

The thread direction on the acetylene hose, identified by a groove in the nut.

Left hand thread.

300

This shrill hissing condition sends the flame into the torch head and is caused by a hose leak.

A flashback.

300

 This device, made of stainless steel, is designed to rupture before the cylinder is damaged by pressure.

The pressure safety disk

300

The temperature, in degrees Fahrenheit, at which the cylinder's safety fuse plugs are designed to melt.

 212°F

300

 The material regulator diaphragms are made of.

Stainless steel

400

The maximum safe working pressure for acetylene, in PSI.

5 PSI.

400

The two things you must never do when transporting cylinders.

Transporting without safety caps in place and transporting with regulators in place

400

The reason acetylene cylinders must always be stored upright.

To prevent the acetone from escaping, which would make the acetylene unstable

400

 The component that causes the regulator gauge's pointer to move as internal pressure increases.

 Bourdon tube.

500

The three things required for a fire, plus the tool you must never use to light an oxy-acetylene torch.

 Heat, oxygen, and fuel, and a butane lighter.

500

The pressure range, in PSI, at which oxygen is stored in cylinders.

2,000 to 2,640 PSI

500

The porous substance inside the cylinder that prevents large pockets of pure acetylene from forming.

Monolithic filler

500

The position the adjusting screw is turned to in order to shut off a regulator.

 Turned all the way out (counterclockwise)

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