Alloys — Set 3
Chemistry · मिश्र धातुएं · Questions 21–30 of 50
Which of the following elements is a non-metal often found in alloys?
Correct Answer: D. Carbon
• **Carbon** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: different metal element; B: different metal element; C: different metal element.
Which alloy is known for its high luster and is used for making mirrors in telescopes?
Correct Answer: C. Speculum metal
• **Speculum metal** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; D: incorrect choice for stated use.
Magnalium is an alloy primarily composed of Aluminum and which other metal?
Correct Answer: C. Magnesium
• **Magnesium** = serves as the primary component or element. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; D: incorrect choice for stated use.
Which alloy is used in the manufacture of high-speed cutting tools?
Correct Answer: A. High-Speed Steel (HSS)
• **High-Speed Steel (HSS)** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: different metal element.
What is the purpose of adding Manganese to Steel?
Correct Answer: A. To increase hardness and strength
• **To increase hardness and strength** = is the correct answer to this question. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: different metal element.
Which alloy is widely used for making high-quality cutlery like forks and spoons?
Correct Answer: B. Stainless Steel
• **Stainless Steel** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
Which of these is a copper-based alloy used for making statues and medals?
Correct Answer: A. Bronze
• **Bronze** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: B: incorrect choice for stated use; C: incorrect choice for stated use; D: incorrect choice for stated use.
What is the primary metal in the alloy 'Electrum'?
Correct Answer: B. Gold
• **Gold** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: A: different metal element; C: different metal element; D: different metal element.
Constantan is an alloy of Copper and Nickel used for what purpose?
Correct Answer: D. Electrical resistance and thermocouples
• **Electrical resistance and thermocouples** = is used for its specific properties and applications. • **Key characteristic** — possesses unique properties for its intended use. • 💡 Wrong-option analysis: A: incorrect choice for stated use; B: incorrect choice for stated use; C: incorrect choice for stated use.
Which metal is the solvent in most Amalgams?
Correct Answer: A. Mercury
• **Mercury** = is the correct answer to this question. • **Industrial use** — extracted and processed for various applications. • 💡 Wrong-option analysis: B: different metal element; C: incorrect choice for stated use; D: different metal element.