ESP Mechanical Engineering: Metal Extractions

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Quizzes Created: 2 | Total Attempts: 213

Questions: 9 | Attempts: 57 | Updated: Mar 20, 2023

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Esp Mechanical Engineering: Metal Extractions - Quiz

Read again the text METAL EXTRACTION AND ALLOYS (page 62 of your book) and then answer the following questions.

Questions and Answers

1.

This is a mine.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement "This is a mine" is true. This implies that the object being referred to is indeed a mine.

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2.

Metals are mined from earth.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Metals are indeed mined from the earth. This process involves extracting metallic minerals from the ground through various mining techniques, such as open-pit mining or underground mining. These minerals are then processed and refined to obtain pure metals, which are used in various industries and for manufacturing different products. Therefore, the statement "Metals are mined from earth" is true.

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3.

An ore is a part of a piece of rock.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
An ore is a naturally occurring solid material that contains a valuable mineral, which can be extracted and processed for profit. It is typically found within rocks and is considered a part of the rock formation. Therefore, the statement that "an ore is a part of a piece of rock" is true.

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4.

There are two ways to extract metals from an ore.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The given statement is true. There are indeed two ways to extract metals from an ore. The first method is through the process of smelting, where the ore is heated at high temperatures to separate the metal from the impurities. The second method is through the process of leaching, where a solvent is used to dissolve the metal from the ore. Both methods are commonly used in the mining and metallurgical industries to obtain pure metals from their ores.

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5.

The picture shows a

Correct Answer
Blast furnace

Explanation
The picture shows a blast furnace. A blast furnace is a type of metallurgical furnace used to produce industrial metals, such as iron, by extracting them from their ores. It is a large structure made of steel and lined with refractory bricks. The furnace operates by continuously feeding a mixture of iron ore, coke, and limestone into the top, while hot air is blown into the bottom. The intense heat generated inside the furnace melts the iron ore, which is then tapped off as molten iron. The blast furnace is a crucial component in the iron and steel industry.

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4
6.

Which of the following are methods of extracting metals?
- A.
  
  Tempering
- B.
  
  Electrical process
- C.
  
  Through heat in a tall metal tower (blast furnace)
- D.
  
  Hardening
Correct Answer(s)
B. Electrical process
C. Through heat in a tall metal tower (blast furnace)

Explanation
The correct answer is "electrical process" and "through heat in a tall metal tower (blast furnace)". These are methods of extracting metals. The electrical process involves using electricity to separate the metal from its ore. This is commonly used for metals like aluminum. On the other hand, extracting metals through heat in a tall metal tower, also known as a blast furnace, is a common method used for extracting iron from its ore. In this process, the ore is heated with carbon and the metal is extracted as molten iron.

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7.

Pure metals are stronger than alloys.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
This statement is false because alloys are generally stronger than pure metals. Alloys are made by combining two or more metals, which can result in a material with improved strength and other desirable properties. The addition of different elements in alloys can create a solid solution, which can enhance the strength and hardness of the material. Therefore, alloys are often preferred over pure metals in applications where strength is important.

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8.

Which of the following are alloys.
- A.
  
  Bronze
- B.
  
  Iron
- C.
  
  Gold
- D.
  
  Brass
Correct Answer(s)
A. Bronze
D. Brass

Explanation
The correct answer is bronze and brass. Both bronze and brass are alloys, which are metallic substances made by combining two or more elements, with at least one of them being a metal. Bronze is an alloy made primarily of copper and tin, while brass is an alloy made primarily of copper and zinc. Iron and gold, on the other hand, are not alloys. Iron is a pure metal, and gold is a precious metal found in its pure form.

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Current Version
Mar 20, 2023

Quiz Edited by
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Apr 01, 2020

Quiz Created by
Ck

Esp Mechanical Engineering: Metal Extractions

This is a mine.

Metals are mined from earth.

An ore is a part of a piece of rock.

There are two ways to extract metals from an ore.

The picture shows a

Which of the following are methods of extracting metals?

Pure metals are stronger than alloys.

Which of the following are alloys.