Oxy-Fuel Cutting set up

Which of the following is NOT a part of the fire triangle?

• Air

• Heat

• Fuel

• Oxygen

Why are there different fittings on Oxygen and Fuel gas hoses?

• To colour code them

• To prevent putting the wrong fitting on the wrong hose

• To extend the life of the fuel gas

• Oxygen hoses need to hold higher pressure

When do we check for leaks?

• After the first cut of the day

• Before shutting down the equipment

• After setting up the equipment

• When the supervisor tells us too

What is the first step when finished and Oxy-Fuel Cutting operation?

• Bleed the hoses

• Back-off the pressure guages

• Remove the cutting tip

• Shut of the main gas suppy or cylinder vlave

Why do we have to back-off the pressure guages?

• To prevent damage the diaphram inside the guage

• To prevent a loud bang when we open the cylinder

• To not waste any gas

• To set the pressure more easily

How can we light the flame of our Oxy-Fuel torch?

• With a bic lighter

• With another torch

• With a striker

• With a blow torch

What form of radiation is present when Oxy-Fuel cutting?

• Ultra Violet

• Gamma Rays

• Infared Rays

• Visible light

When is a SCBA required?

• When H2S gas leak has occured.

• When ever CO2 is present.

• When heating up sythetic materials like Teflon

• When entering confined spaces.

• None of the above

Ferrous metals...

• Do not easily oxidize

• Oxidize easily

• Are very reflective

• Are non magnetic

Acetelyne might not be used as the cutting fuel gas because...

• It does not burn as hot as other gasses

• It has a purple flame

• It cannot be used to cut high carbon and alloy steels

• Of the availability, performance and cost