9. WELDING – WEEKLY TEST

What organization has set up standards for training and qualification of welders?

• American Society of Mechanical Engineers

• American Welding Society

• American Conference of Governmental Industrial Hygienist

• OSHA

Flame cutting uses which gas mixture.

• Oxygen and Hydrogen

• Oxygen and Acetylene

• Oxygen and CO2

• Oxygen and Argon

What flame temperature can acetylene produce?

• 3300⁰ C

• 1648⁰ C

• 1200⁰ C

• 4000⁰ C

Best way to find gas leakage are.

• By flame

• By sniff

• By match stick

• By soap solution

In an industrial drawing, what do regularly broken lines _ _ _ _ _mean?

• The visible edges of the represented shapes

• The circumferences axes, holes and curves of the represented shapes

• The hidden, invisible edges of the represented shapes

• They are auxiliary lines to identify cuts, sections and to dimension the represented shapes.

The distance from the root to the toe of the weld is called,

• Leg length

• Effective throat

• Face

• Actual throat

To prevent the occurrence of flashbacks, a ________ should installed between either the torch and hoses or regulators and hoses.

• A two way check valve

• Flame screen

• Flash back arrester

• Three way check valve

What type of safety device used on an acetylene cylinder?

• Check valve

• Fuse plug

• Safety valve

• Flash back arrester

Hazardous fumes from welding/cutting can lead to irritation of the?

• Eyes

• Nose

• Throat

• All the above

Choose the correct answers Oxy Fuel Welding/Cutting Involves combining what of the following?

• Spark

• Oxygen

• Flammable Gas

• (A&C)

• (A,B, & C)