APST CH23 OxyAcetylene

APST CH23 OxyAcetylene

In this quizizz lesson, I would like to explain more about Fuel Gas Setup.

OxyFuel Heating, Cutting and Welding Kit

• These are the basic parts of an oxyfuel setup

• Not all equipment will look the same, but most will have the same function.

Multiple Choice

All oxyfuel equipment kits will look the same even though they may have different functions.

• True

• False

Oxygen Regulator

• This unit has the responsibility of reducing the high pressure in the oxygen cylinder down to a safe working pressure and expelling it into the green hose.

• There is a high pressure gauge for the cylinder (F), a low pressure gauge for the hose (E) and a green knob to control hose pressure (G).

• (R) connects to the cylinder & has right-handed threads.

Multiple Choice

What type of threads does (R) have?

• left-handed

• right-handed

• clockwise

• off-threaded

(R) has right-handed threads that will only work on the oxygen cylinder.

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Multiple Choice

Which way does (G) get turned to increase oxygen cylinder pressure?

• counterclockwise

• clockwise

• up

• none of these

Did I get you on that one?

• (G) doesn't control cylinder pressure. It controls the pressure in the hose/line.

• Turn (G) clockwise to increase hose pressure.

Multiple Choice

Which way does (G) get turned to increase oxygen hose pressure?

• counterclockwise

• clockwise

• up

• none of these

Fuel Gas Regulator

• This unit has the responsibility of reducing the high pressure in the fuel gas cylinder down to a safe working pressure and expelling it into the red hose.

• There is a high pressure gauge for the cylinder (N), a low pressure gauge for the hose (M) and a red knob to control hose pressure (O).

• (P) connects to the cylinder & has left-handed threads.

Multiple Choice

What type of threads does (P) have?

• left-handed

• right-handed

• clockwise

• off-threaded

(P) has left-handed threads that will only work on the fuel gas cylinder.

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Multiple Choice

Which way does (O) get turned to increase fuel gas hose pressure?

• counterclockwise

• clockwise

• up

• none of these

Just like the oxygen regulator knob, the knob (O) on the fuel gas regulator is turned clockwise as well to increase hose pressure.

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Multiple Choice

Which regulator is capable of handling higher gas pressures?

• Red

• Green

The oxygen (green) regulator can handle the much-higher pressures of an oxygen cylinder.

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Multiple Choice

What does K control?

• oxygen gas

• fuel gas

K controls the oxygen coming into the torch body.

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Multiple Choice

What does J control?

• oxygen gas

• fuel gas

J controls the fuel gas coming into the torch body.

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Multiple Choice

What is this?

• oxyfuel torch body

• oxyfuel torch head

• oxyfuel welding tip

• oxyfuel rosebud tip

This is an oxyfuel torch body. It is hooked up to an oxygen and a fuel gas hose and fitted with a cutting head, welding tip or rosebud.

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Multiple Choice

What direction is K turned to increase gas flow?

• clockwise

• counterclockwise

All the knobs, K, J, and B on these two parts are opened by turning counterclockwise (Lefty-Loosey if you're familiar with that!)

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Multiple Choice

When moving parts A, B, C, J and K use:

• a wrench

• a vice grip

• your hand

• your teeth

A & C can be tightened pretty much as hard as you want to by hand. B, J, and K, however can be EASILY damaged by tightening too much with your hand. You should stop when you feel the slightest of resistance!!!!!! Fittings on S and T can be tightened snugly with a wrench.

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Multiple Choice

What type of threads does S have?

• clockwise

• counterclockwise

• left-hand

• right-hand

S is an oxygen fitting and those are all right-hand threads (righty-tighty)

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Multiple Choice

What type of threads does T have?

• clockwise

• counterclockwise

• left-hand

• right-hand

T is a fuel gas fitting and those are all left-hand threads (lefty-tighty)

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Multiple Choice

What gets attached to T?

• welding tip

• cutting head

• fuel hose

• oxygen hose

Multiple Choice

What gets attached to S?

• welding tip

• cutting head

• fuel hose

• oxygen hose

Multiple Select

What gets attached to the big end of this? Check all that apply.

• welding tip

• cutting head

• rosebud

• oxygen hose

Multiple Choice

What is this?

• welding tip

• cutting head

• rosebud

• torch body

You'll use this to weld metal together with oxyfuel.

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Multiple Choice

What is this?

• welding tip

• cutting head

• rosebud

• torch body

You'll use this to heat up metal.

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Multiple Choice

What is this?

• welding tip

• cutting head

• rosebud

• torch body

No surprise here, you'll use this to cut metal with oxyfuel.

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Multiple Choice

Which order for lighting this cutting torch is correct?

• Open B, Spark, Open K, Open J

• Open K, Open J, Spark, Open B

• Open J, Open K, Spark, Open B

• Open J, Open B, Spark, Open K

This is VERY important so we don't all die!!! Open the oxygen torch body valve (K) all the way. Have your sparker ready. Open the fuel gas valve slightly until gas flows (1/8-1/4 turn CC). Spark near the tip of the cutting head to light the torch. Adjust fuel gas flow until soot stops (J). Turn on Oxygen Preheat Valve (B) until you achieve a neutral flame.

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Multiple Choice

Which is correct for extinguishing the flame from a cutting torch?

• Close K, Close B

• Close K, Close J

• Close B, Close J

• Close J, Close B

Pretty simple here. Turn off the fuel (J). The oxygen gas snuffs out the flame. Turn off the preheat oxygen (B). Leave the torch body oxygen valve (K) open until you're shutting the rig down or changing tips.

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