Manufacturing Processes of Copper and its Alloys MCQ

Test your knowledge with important Manufacturing Processes of Copper and its Alloys MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Manufacturing Processes of Copper and its Alloys MCQs on Bissoy. Bissoy App

• It is impossible to recycle used copper products.
  ক

  True

  খ

  False
• The final output after processing of copper ores to be purified produces around ____________ pure copper.
  ক

  100%

  খ

  45%

  গ

  99.9%

  ঘ

  86%
• Smelting is done to eradicate unwanted materials like ___________ to the fullest extent possible.
  ক

  copper

  খ

  copper and gangue minerals

  গ

  sulfur

  ঘ

  sulfur and gangue minerals
• Oxide ores of copper cannot be processed using hydrometallurgy.
  ক

  True

  খ

  False
• Copper ores typically contain less than _________ of copper.
  ক

  0.15%

  খ

  0.2%

  গ

  1%

  ঘ

  0.4%
• Sulfide ores are typically processed through a technique known as __________
  ক

  cathode

  খ

  pyrometallurgy

  গ

  hydrometallurgy

  ঘ

  zarconsis
• ___________ is a sulfide ore of copper.
  ক

  Chalcocite

  খ

  Cuprite

  গ

  Magnesite

  ঘ

  Azurite
• Which of the following techniques are used in the extraction of copper?
  ক

  Refining, down process

  খ

  Smelting, vacuum pump

  গ

  Roasting, refining

  ঘ

  Roasting
• The first process in extraction of an element from ore is typically ______
  ক

  roasting

  খ

  electrolysis

  গ

  crushing

  ঘ

  smelting
• Sulfide ores contain around _____ copper.
  ক

  9 – 10%

  খ

  8 – 12%

  গ

  4 – 5%

  ঘ

  0.5 – 2%