True/False
Indicate whether the sentence or statement is true or
false.
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1.
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The Russian Scientist Bernardos
improved upon the shielded metal arc process and patented it in 1887.
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2.
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The Russian Scientist Slavinoff
discovered that a bare metal rod would melt off by the heat of the arc and act as a filler metal in a
weld.
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Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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3.
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What is
welding? a. | Melting metal together with
electricity | c. | The fusing of two like substances together with heat. | b. | The fusing of two like substances together. | d. | None of the above are
correct. | | | | |
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4.
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What did Sir Humphrey Davy
discover? a. | In 1801 that an electric current would form an arc when forced across
a gap. | c. | Improved the carbon arc process. | b. | That a bare metsal rod would melt off and fill the gap when
welding. | d. | That flux made a weld better and stronger. | | | | |
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5.
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What did Charles Coffin recieve
a patent for? a. | Developing the Tig welding process. | c. | Carbon Arc | b. | Developing a better way to apply flux to a welding
rod. | d. | Metalic Arc | | | | |
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6.
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What did Oscar Kjellberg
discover? a. | That a bare metal rod would melt from the heat of the weld and act as
a filler metal when welding. | c. | The carbon arc process. | b. | Welds were stronger and more easily made when a chemical coating was put on the metal
electrode. | d. | None of the above | | | | |
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7.
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What two historical events
really brought welding into it’s own? a. | The industrial
revolution | c. | World War I and the invention of the steam engine. | b. | World War II and Reconstruction | d. | World War I and WorldWar
II | | | | |
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