What Do You Know About Aluminium Alloy? Quiz
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Which furnace is not used for heating aluminium alloys?
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Electric arc furnace
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Pot furnace
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Induction heating furnace
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Crucible furnace
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A metal can be combined with other metals to form a new kind of metal and not only that but a metal can also be combined with other elements to give new product. This is what we call an alloy. Aluminum is a metal and as such can be combined with other elements to give an alloy. Take this quiz and let's find out if you about the aluminum alloy.
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- 2.
Presence of which material in aluminium alloy provides ductility to the alloy?
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Silicon
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Iron
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Copper
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Zinc
Correct Answer
A. CopperExplanation
Copper is the material that provides ductility to aluminium alloy. Ductility refers to the ability of a material to be stretched or deformed without breaking. Copper is known for its high ductility, and when added to aluminium alloy, it enhances its ability to withstand deformation without fracturing. This makes the alloy more malleable and allows it to be easily shaped or formed into various structures or products. Therefore, the presence of copper in aluminium alloy contributes to its ductility.Rate this question:
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- 3.
Which gas is not used for fluxing and flushing in aluminium alloys?
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Argon
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Chlorine
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Nitrogen
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Oxygen
Correct Answer
A. OxygenExplanation
Oxygen is not used for fluxing and flushing in aluminium alloys because it can react with the aluminium, causing oxidation and potentially compromising the quality of the alloy. Fluxing and flushing processes are used to remove impurities and create a clean surface for further processing, and gases like argon, chlorine, and nitrogen are commonly used for these purposes. Oxygen, on the other hand, can introduce unwanted reactions and should be avoided in these processes.Rate this question:
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- 4.
Aluminium alloys are not susceptible to which of the following?
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Macro shrinkage
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Drossing
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Micro shrinkage
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Solidification shrinkage
Correct Answer
A. Macro shrinkageExplanation
Aluminium alloys are not susceptible to macro shrinkage. Macro shrinkage refers to the formation of visible voids or cavities in the metal due to improper cooling or solidification. Aluminium alloys have a high fluidity and low solidification shrinkage, which makes them less prone to macro shrinkage compared to other metals.Rate this question:
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- 5.
Which of the given metals is not counted among late additions in aluminium alloys?
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Boron
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Titanium
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Manganese
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Sodium
Correct Answer
A. ManganeseExplanation
Manganese is not counted among late additions in aluminium alloys because it is typically added in the early stages of alloying to improve strength and corrosion resistance. Late additions in aluminium alloys usually refer to elements like boron and sodium, which are added in the final stages of alloying to modify the microstructure and enhance certain properties. Titanium can also be considered a late addition in some cases, as it is added to improve grain refinement and mechanical properties.Rate this question:
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- 6.
A runner is located away from the:
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Ore
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Drag
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Stigma
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Aluminium Ore
Correct Answer
A. Drag -
- 7.
Up to what length can the surface finish be achieved by green sand in aluminium alloys?
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600 micro inch
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650 micro inch
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700 micro inch
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750 micro inch
Correct Answer
A. 650 micro inchExplanation
Green sand is a type of molding sand that is commonly used in the foundry industry for casting aluminum alloys. The surface finish refers to the smoothness and texture of the surface of the cast part. In this case, the correct answer is 650 micro inch, which means that green sand can achieve a surface finish of up to 650 micro inches in aluminum alloys. This indicates a relatively smooth and fine surface texture for the cast part.Rate this question:
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- 8.
What is the silicon composition present in an LM-17 cast aluminium alloy?
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3%
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12%
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5.5%
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11.5%
Correct Answer
A. 11.5%Explanation
The correct answer is 11.5%. In an LM-17 cast aluminium alloy, the silicon composition is 11.5%. Silicon is commonly added to aluminium alloys to improve their strength, hardness, and corrosion resistance. It also helps in reducing shrinkage during solidification and improves the fluidity of the molten metal. The specific silicon composition in an alloy depends on the desired properties and the intended application of the alloy.Rate this question:
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- 9.
Pouring basins are used for:
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Reducing vortex formation.
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Increasing vortex formation.
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Reducing ore formation.
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Increasing vortex formation.
Correct Answer
A. Reducing vortex formation.Explanation
Pouring basins are used to reduce vortex formation. When pouring liquid into a container, a vortex can form due to the circular motion of the liquid. This vortex can lead to splashing and uneven distribution of the liquid. Pouring basins are designed to minimize this vortex formation by providing a wider and shallower area for the liquid to enter. This helps to prevent splashing and ensures a more even and controlled pour. Therefore, pouring basins are specifically used to reduce vortex formation.Rate this question:
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- 10.
Which of the following is not a purpose of fluxing and flushing the aluminium alloys?
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Removal of dissolved hydrogen
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Removal of dissolved oxygen
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Separation of dross from melt
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Entrapment of dross
Correct Answer
A. Removal of dissolved oxygenExplanation
Fluxing and flushing of aluminium alloys is done to remove impurities and contaminants from the melt. Dissolved hydrogen can cause porosity in the alloy, so it needs to be removed. Dross, which is a layer of impurities on the surface of the melt, needs to be separated and entrapped to ensure a cleaner alloy. Dissolved oxygen, however, is not a purpose of fluxing and flushing. Oxygen can react with the alloy and cause oxidation, but it is typically removed through other processes such as degassing.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
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Aug 09, 2019Quiz Created by
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