intro

Who invented the flux coating in electrode?

• Oscar Kjellberg

• Nikolas De Bernardos

• Slavianoff

• Sir Humphrey Devy

What is the first welding process that hammered two molten metal to joined?

• Gas welding

• Forge welding

• Manual welding

• Friction welding

This welding process is also known as "Stick Welding.

• FCAW

• GTAW

• OAW

• SMAW

Who discovered the first welding process that is used for centuries?

• Volta

• Wilde

• Tubalcain

• Kjellberg

In this welding process, it uses a tubular wire electrode and can be used with or without shielding gas.

• FCAW

• SMAW

• GMAW

• MMAW

Who discovered the Inert Gas Arc Welding?

• Slavianoff

• Prof. Elihu Thomson

• Hosert and Dener

• Sir Lichtemberg

When was Atomic Hydrogen Welding discovered?

• 1930

• 1927

• 1926

• 1960

In what year did Piccard discovered the Gas Welding?

• 1901

• 1939

• 1902

• 1904

Who discovered the electric?

• Slavianoff

• Sir Humphrey Devy

• Prof. Elihu Thomson

• Languir

In 1782, Sir Lichtemberg of _______ is the first person who use  electric arc welding in joining metal. 

• Germany

• America

• Russia

• France