Intro to metal History

The earliest metal worked systematically by humans was

• copper

• tin

• bronze

• iron

• steel

During the Stone Age______ and _______ were discovered and the art of metal working began.

(a)  

Answer explanation

both are very soft and were easy to find by early man.

Which welding process was first used by early civilizations?

• Stick welding

• Forge welding

• Oxy-fuel welding

• Fusion welding

Which Metals age came after the stone age?

• Gold age

• iron age

• bronze age

• modern age

What are the two types of material used to create Bronze ?

Complete the sentence with the correct term.

A ___________ is a metalsmith who creates objects from wrought iron or steel by forging the metal, using tools to hammer, bend, and cut.

• Iron Worker

• Blacksmith

• Welder

• Craftsman

During the early 19th century, what significant discovery did Sir Humphry Davy make that led to the evolution of welding technology?

• Development of flux coated metal

• Discovery of acetylene gas

• Invention of the electric arc

• Introduction of Fusion welding

Edmond Davy discovered which shielding gas?

• oxygen

• Argon

• Acetylene

• Helium

When was a stable Oxygen and acetylene torch invented?

• 1890

• 1900

• 1930

• 1920

Which semi auto-matic arc welding process uses a spool of solid wire as the electrode?

• SMAW

  shielded metal arc welding

• GTAW

  Gas tungsten arc welding

• SAW

  Submerged arc welding

• GMAW

  Gas metal arc welding