40 + Interview Questions in Wrought Aluminium Alloys in Aerospace Materials & Processes Page 1 InterviewSolution

1.	Which of the following are shapes used in the manufacturing of an aircraft?(a) X-section(b) U-section and Z-section(c) X-section and Z-section(d) U-sectionThe question was posed to me in exam.This intriguing question comes from Wrought Aluminium and it’s Alloys topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct answer is (b) U-section and Z-section To EXPLAIN I WOULD SAY: There are several shapes required to manufacture the STRUCTURE of an aircraft. Some of the shapes are Z-section, U-section, bars, sheets and TUBING. X-section is not a shape used in the construction of an aircraft.

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2.	Aluminium alloys also have a system that indicates temper.(a) True(b) FalseThis question was posed to me during an online exam.Question is from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct ANSWER is (a) True The explanation: Aluminium ALLOYS have a system of designation that is DENOTED by four digits. The four digits are followed by the temper designation. It consists of the letters O, F, H and T after which there is a number. They represent annealed, fabricated and strain hardened RESPECTIVELY.

Discussion

3.	It is ___________ to recycle aluminium.(a) impossible(b) difficult(c) easy(d) rarely possibleThis question was posed to me in a job interview.The query is from Applications and Advantages of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct CHOICE is (C) easy Easy explanation: It is easy to recycle ALUMINIUM. Recycling of aluminium requires around five percent of energy to make new aluminium. Recycled aluminium is frequently used in several INDUSTRIES ACROSS the world.

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4.	One of the advantages of aluminium compared to steel is ______(a) lower production cost(b) higher-strength(c) higher weight(d) low corrosionI have been asked this question in examination.My enquiry is from Applications and Advantages of Aluminium topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct option is (d) low corrosion Best explanation: Aluminium creates a NATURAL layer around itself that protects it from corrosion. Steel has a higher strength and WEIGHT when COMPARED to aluminium. Aluminium ALSO has a higher PRODUCTION and manufacturing cost.

Discussion

5.	Aluminum has a ____________ strength to weight ratio.(a) moderate(b) low(c) high(d) infiniteI got this question in a job interview.I want to ask this question from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct option is (c) high The explanation: Aluminium has a high strength to weight RATIO. Especially compared to other STRONG metals like IRON. This GIVES an advantage in industries where it is desirable to have a very high strength to weight ratio.

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6.	The metal aluminium can be ___________ to obtain strength.(a) heat-treated(b) nullified(c) softened(d) non-heat treatedThe question was asked during an internship interview.This intriguing question comes from Applications and Advantages of Aluminium topic in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct OPTION is (a) heat-treated For explanation: One of the PROPERTIES of aluminium that is widely applicable is the ability to be heat treated. Aluminium is SUBJECTED to heat TREATMENT to INCREASE its performance characteristics as it becomes stronger.

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7.	Aluminium is ______(a) brittle(b) ductile(c) magnetic(d) brownish-redI got this question in homework.My question is taken from Applications and Advantages of Aluminium in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The CORRECT choice is (b) ductile The best explanation: ALUMINIUM is a ductile material. It is not a brittle material. It is also silver-white in colour and is a non-magnetic SUBSTANCE. Its melting POINT is 660 degrees Celsius and the atomic number is THIRTEEN.

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8.	It is easy to manufacture components/products using aluminium because of ____________ cutting speed.(a) high(b) even(c) moderate(d) smoothI got this question in an internship interview.This intriguing question comes from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The CORRECT choice is (a) HIGH To EXPLAIN: Aluminium is known to have a high cutting speed. This makes it easier to manufacture components or products. Aluminium is also known for being a SOFT material. It is also suitable for WELDING.

Discussion

9.	Recycling of aluminium requires _________ of energy to make new aluminium.(a) 0.5%(b) 25%(c) 5%(d) 50%I got this question in a national level competition.This intriguing question comes from Chemical Processes of Aluminium in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right option is (c) 5% Best EXPLANATION: Aluminium can be ABSOLUTELY recycled. In any of its forms for example TINS, cans, etc. it can be taken to a plant where it is TREATED. In this process, only five percent of energy is required to manufacture NEW aluminium.

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10.	Aluminium ores can be obtained in large amounts from which of the following countries?(a) Africa, Greenland(b) Africa, Australia(c) Greenland(d) AustraliaI have been asked this question in an international level competition.My question is based upon Chemical Processes of Aluminium in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct choice is (b) Africa, Australia The EXPLANATION: ALUMINIUM is OBTAINED through ores, typically bauxite. It is present in several countries like Greece, the United States, France, India and China. The ORE bauxite is present abundantly in Africa and Australia.

Discussion

11.	Aluminium is suitable for the _______(a) aircraft industry(b) transportation industry(c) aircraft industry and transportation industry(d) jewel industryI had been asked this question in quiz.My doubt is from Applications and Advantages of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right CHOICE is (c) aircraft industry and transportation industry Explanation: Aluminium is SUITABLE for several industries, which also include the aircraft industry and the transportation industry. It is also used for cosmetic products, DEODORANTS, HOUSEHOLD APPLIANCES and several other fields.

Discussion

12.	The aluminium association has a designation system for aluminium alloys which are denoted by __________ digits.(a) 23(b) 2(c) 9(d) 4This question was addressed to me in my homework.The origin of the question is Wrought Aluminium and it’s Alloys in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The CORRECT option is (d) 4 The explanation is: The aluminium association has a designation system for aluminium alloys that are DENOTED by four digits. The four digits of numbers represent DIFFERENT PARAMETERS of the material, aluminium alloys.

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13.	Aluminium is __________(a) non-magnetic(b) ductile(c) magnetic(d) non-magnetic and ductileThis question was posed to me in an interview.This key question is from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right choice is (d) non-magnetic and ductile For EXPLANATION I would say: Aluminium is a soft material. It is silvery-white in colour. It has a melting point of AROUND 660°c. It is ALSO both non-magnetic and ductile in NATURE. The atomic number of the element aluminium is 13.

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14.	Cryolite cannot be used in the Hall-Heroult process of smelting aluminium.(a) True(b) FalseThis question was addressed to me in an online interview.My question is taken from Chemical Processes of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct OPTION is (b) False The EXPLANATION is: The above statement is incorrect. Molten cryolite is used in the Hall-Heroult PROCESS of extraction of aluminium.It is not a common mineral and is usually COLOURLESS or white. It is of brittle tenacity.

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15.	The melting point of aluminium is ___________(a) 236°c(b) 1085°c(c) 660°c(d) 1510°cI got this question in homework.Question is taken from Wrought Aluminium and it’s Alloys in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct choice is (C) 660°c Easiest explanation: The melting point of ALUMINIUM is 660°c. Aluminium ALLOYS are subjected to different temperatures during HEAT treatment. The melting point of copper is 1085°c. The melting point of steel is 1510°c.

Discussion

16.	The Hall-Heroult process is carried out at a temperature of __________ industrially.(a) 940-980°C(b) 200-300°C(c) 10,000-50,000°C(d) 50-70°CThe question was posed to me in an internship interview.This interesting question is from Chemical Processes of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right option is (a) 940-980°C The BEST I can explain: The Hall-Heroult PROCESS is an EXTRACTION process of METALS that involves the usage of heat. For this process, when it is being carried out industrially for a large QUANTITY, the temperature at which it is done is between 940-980°C.

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17.	In the aircraft industry, aluminium is ______ used.(a) moderately(b) widely(c) not often(d) hardlyThis question was posed to me by my college director while I was bunking the class.I want to ask this question from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct answer is (B) widely For explanation: ALUMINIUM is widely used in the aircraft industry. It is mainly used in the form of alloys with other elements. One of the PRIMARY reasons for its USAGE is the HIGH strength to weight ratio of aluminium.

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18.	One of the most widely recycled products are ___________(a) aluminium cosmetics(b) aluminium cans(c) aluminium discs(d) welding aluminiumThis question was posed to me in homework.The above asked question is from Applications and Advantages of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right ANSWER is (b) aluminium cans The explanation: One of the most widely recycled products in the world is aluminium cans. This is because aluminium is used packaging SEVERAL items DUE to its ADVANTAGEOUS properties. Cosmetics ALSO contain some aluminium in them.

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19.	Which of the following is not a common property for all aluminium alloys?(a) Low strength(b) Heat treatable(c) Easy for machining(d) Readily joined be weldingI have been asked this question by my school principal while I was bunking the class.My doubt is from Wrought Aluminium and it’s Alloys topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right choice is (a) LOW strength Best explanation: ALUMINIUM ALLOYS are good MATERIALS to use in the aerospace industry. They are heat treatable, can readily be joined by welding, soldering and are easy to machine. They also have high strength.

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20.	Aluminium weighs around __________ of steel.(a) 2 times(b) 1/2(c) 1/3(d) 4 timesThe question was asked during an interview.Question is taken from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» RIGHT option is (c) 1/3 For EXPLANATION I would say: One of the most IMPORTANT advantages of aluminium is its weight. Aluminium weighs less than steel. But steel is stronger compared to aluminium. Steel weighs almost three times the weight of aluminium.

Discussion

21.	A ____________ process is carried out to get aluminium from the oxide alumina.(a) electrolytic(b) dynamite(c) chromatography(d) bakeliteI had been asked this question during a job interview.The doubt is from Wrought Aluminium and it’s Alloys in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» RIGHT CHOICE is (a) electrolytic The best explanation: Aluminium is OFTEN found in the ore bauxite. But, it is found along with a lot of IMPURITIES. Therefore, a CHEMICAL process purifies it to alumina after which it is subjected to an electrolytic process.

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22.	Hydrometallurgy is the process of extracting __________ from ___________(a) flight parts, metals(b) metals, flight parts(c) metals, ores(d) ores, metalsThis question was posed to me in an interview for internship.Query is from Chemical Processes of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct choice is (c) metals, ORES The best explanation: Hydrometallurgy is a chemical process that can be used in the extraction of aluminium. It is a process that involves EXTRACTING metals from ores by PREPARING and using an AQUEOUS solution in the process.

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23.	Which of the following is a chemical process used to extract aluminium?(a) Osmosis(b) Radiography(c) Heliography(d) PyrometallurgyThis question was posed to me in unit test.This interesting question is from Chemical Processes of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» CORRECT ANSWER is (d) PYROMETALLURGY To explain: ALUMINIUM is obtained through ores like bauxite. To extract aluminium several chemical methods and PROCESSES are applied. Pyrometallurgy is a chemical process that involves extracting metals in the presence of high temperatures.

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24.	Aluminium is __________ and __________(a) non-hygienic, toxic(b) toxic, hygienic(c) non-toxic, hygienic(d) non-hygienic, non-toxicThe question was posed to me during a job interview.My doubt is from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct choice is (C) non-toxic, hygienic The EXPLANATION: Aluminium is a non-toxic and hygienic material. This is the reason why it is widely USED in several INDUSTRIES around the world without any drastic or negative REPERCUSSIONS. It is one of its advantageous properties.

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25.	The voltage in the Hall-Heroult process is around __________(a) 2-9 V(b) 15.5-16.5 V(c) 26-45 V(d) 6-8 VI have been asked this question in my homework.I would like to ask this question from Chemical Processes of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right answer is (d) 6-8 V The best explanation: The Hall-Heroult PROCESS is widely used. It involves the mixing of molten CRYOLITE with alumina to PERFORM electrolysis. The mixing of these results in a LOWER melting point of the molten bath. The voltage in this process is typically 6-8 V.

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26.	Why has the aluminium association established a system of designating aluminium alloys?(a) To create employment(b) To remove confusion(c) To encourage research(d) To ensure availabilityThis question was posed to me in class test.This key question is from Wrought Aluminium and it’s Alloys topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» RIGHT option is (b) To remove confusion The explanation: The aluminium association has made this system to remove confusion. The confusion was caused DUE to COMPANIES having DIFFERENT numbering systems for aluminium materials of similar CHEMICAL composition.

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27.	The final two digits in the nomenclature of aluminium alloys represent aluminium __________(a) impurity(b) group(c) purity(d) strengthThe question was asked during a job interview.I would like to ask this question from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right option is (c) purity The explanation is: The nomenclature of aluminium ALLOYS was made by the aluminium association to avoid confusion. It consists of 4 digits that represent various PARAMETERS. The LAST TWO digits indicate aluminium purity.

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28.	Aluminium can be used to preserve milk or juice without the presence of cooling.(a) True(b) FalseI got this question by my school teacher while I was bunking the class.Enquiry is from Applications and Advantages of Aluminium in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right CHOICE is (a) True Explanation: This statement is correct. It is completely safe and possible to preserve CONSUMABLE LIQUIDS like milk or juice in packaging made of aluminium even in the case of being stored in a place of room temperature as OPPOSED to cooling.

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29.	The Hall-Heroult process produces around _______ pure aluminium.(a) 100%(b) 20%(c) 98%(d) 4%I got this question by my college professor while I was bunking the class.This interesting question is from Chemical Processes of Aluminium in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The CORRECT answer is (c) 98% The explanation: The Hall-Heroult EXTRACTION process is extremely advantageous and EFFECTIVE. When the ore undergoes the HEAT treatment for the extraction of the desired metal, in the CASE of aluminium, 98% of pure aluminium can be obtained.

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30.	________ of all the food products in the world are packaged using aluminium.(a) 1/5(b) 1/3(c) 1/2(d) 2/3I have been asked this question in homework.Question is taken from Applications and Advantages of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct answer is (b) 1/3 The EXPLANATION is: Aluminium is widely used in the food PACKAGING industry. This is because it is a RELATIVELY safe METAL to USE when it comes to food. Approximately one-third of the food products are packaged using aluminium.

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31.	Aluminium can be extracted using electrometallurgy.(a) True(b) FalseThis question was addressed to me by my school principal while I was bunking the class.Origin of the question is Chemical Processes of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» CORRECT ANSWER is (a) True For explanation: Aluminium can be extracted using several chemical and electrical PROCESSES. Electrometallurgy is ONE such PROCESS that involves the extraction of aluminium by using an electrical discharge in the process.

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32.	Which of the following is an advantageous property of aluminium?(a) High modulus of elasticity(b) High weight(c) High fuel consumption(d) High payload capacityThis question was posed to me in unit test.This interesting question is from Applications and Advantages of Aluminium in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right option is (d) High PAYLOAD CAPACITY For explanation: Aluminium has several advantages. One of its advantages is its high payload capacity. High weight is typically not CONSIDERED an ADVANTAGE in industries like aerospace. Aluminium is known to be a lightweight material COMPARED to materials like iron.

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33.	Aluminium alloys can be categorized into Cast and ___________ alloys.(a) extrusions(b) heat treatable(c) non-heat treatable(d) wroughtThe question was asked at a job interview.My question is taken from Wrought Aluminium and it’s Alloys in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The CORRECT choice is (d) WROUGHT The explanation: Aluminium ALLOYS are alloys where aluminium is present in a higher amount. It can be roughly CATEGORIZED into two CATEGORIES. Cast alloys and wrought alloys. Both the categories can again be divided into heat-treatable and non-heat treatable.

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34.	Which of the following is not an aluminium alloy?(a) Al-Si(b) Al-Zn(c) Al-Mn(d) Al-UThe question was posed to me in an online interview.I would like to ask this question from Wrought Aluminium and it’s Alloys in portion Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right choice is (d) Al-U Explanation: Aluminium ALLOYS are alloys where aluminium is present in a HIGHER amount. Aluminium alloys can be made with aluminium and zinc, aluminium and manganese, aluminium and silicon, ETC. URANIUM is a radioactive material.

Discussion

35.	The primary commercial source for aluminium is ____________(a) coal(b) bauxite(c) magnetite(d) pyriteThe question was posed to me in an interview.The origin of the question is Wrought Aluminium and it’s Alloys topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right option is (b) bauxite The explanation: Aluminium can be OBTAINED from several sources. For EXAMPLE, it is FOUND in several CLAYS and rocks. But the primary source for aluminium is bauxite ORES. Bauxite contains aluminium and some impurities.

Discussion

36.	Aluminium is used in manufacturing medicines.(a) True(b) FalseThe question was asked during an online interview.I want to ask this question from Applications and Advantages of Aluminium in division Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Right CHOICE is (a) True To elaborate: Aluminium can ALSO be used in the making of MEDICINES in the MEDICAL field. One such example for human beings is its usage in medicines that deal with kidney failures in the human body.

Discussion

37.	_______ percent of earth’s crust is aluminium.(a) 3%(b) 25%(c) 60%(d) 7%This question was addressed to me at a job interview.This intriguing question comes from Applications and Advantages of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct option is (d) 7% The EXPLANATION is: Around seven percent of the EARTH’s crust is aluminium. Aluminium is primarily found in its ore bauxite. It is ALSO found in several rocks, clays and soils. Aluminium is FINALLY obtained after VARIOUS types of processing.

Discussion

38.	The Hall-Heroult process is used for ___________ aluminium.(a) breaking(b) distributing(c) smelting(d) mixingThe question was asked in a job interview.My question is based upon Chemical Processes of Aluminium in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct option is (c) SMELTING The BEST explanation: The Hall-Heroult process is used in the smelting of aluminium. Smelting REFERS to the EXTRACTION of metal using heat. Several metals can be extracted using this process, including aluminium, silver, copper, iron, etc.

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39.	Pitting of the surface is a kind of aluminium alloy __________(a) corrosion(b) annealing(c) strength(d) manufacturing methodI had been asked this question in an online quiz.The query is from Wrought Aluminium and it’s Alloys in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» The correct choice is (a) CORROSION To explain I would say: One of the most important factors to consider while DEALING with materials is corrosion. Aluminium alloys can be painted with a coating to avoid it. Pitting of the SURFACE is corrosion that affects the surface due to the EXISTENCE of moisture.

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40.	Aluminium alloys are used for constructing very few parts in an aircraft due to lack of availability.(a) True(b) FalseThe question was posed to me during an internship interview.Origin of the question is Wrought Aluminium and it’s Alloys in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes
Answer» Correct choice is (B) False The explanation: The above statement is incorrect. ALUMINIUM ALLOYS are MATERIALS with lots of advantages. They are USED extensively in building an aircraft. The structure of the aircraft and wing beams are also manufactured using aluminium alloys.

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Explore topic-wise InterviewSolutions in .

Aluminium alloys also have a system that indicates temper.(a) True(b) FalseThis question was posed to me during an online exam.Question is from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes

It is ___________ to recycle aluminium.(a) impossible(b) difficult(c) easy(d) rarely possibleThis question was posed to me in a job interview.The query is from Applications and Advantages of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminum has a ____________ strength to weight ratio.(a) moderate(b) low(c) high(d) infiniteI got this question in a job interview.I want to ask this question from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium is ______(a) brittle(b) ductile(c) magnetic(d) brownish-redI got this question in homework.My question is taken from Applications and Advantages of Aluminium in portion Wrought Aluminium Alloys of Aerospace Materials & Processes

Recycling of aluminium requires _________ of energy to make new aluminium.(a) 0.5%(b) 25%(c) 5%(d) 50%I got this question in a national level competition.This intriguing question comes from Chemical Processes of Aluminium in portion Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium is __________(a) non-magnetic(b) ductile(c) magnetic(d) non-magnetic and ductileThis question was posed to me in an interview.This key question is from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes

Cryolite cannot be used in the Hall-Heroult process of smelting aluminium.(a) True(b) FalseThis question was addressed to me in an online interview.My question is taken from Chemical Processes of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes

The melting point of aluminium is ___________(a) 236°c(b) 1085°c(c) 660°c(d) 1510°cI got this question in homework.Question is taken from Wrought Aluminium and it’s Alloys in portion Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium weighs around __________ of steel.(a) 2 times(b) 1/2(c) 1/3(d) 4 timesThe question was asked during an interview.Question is taken from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium is and (a) non-hygienic, toxic(b) toxic, hygienic(c) non-toxic, hygienic(d) non-hygienic, non-toxicThe question was posed to me during a job interview.My doubt is from Applications and Advantages of Aluminium in section Wrought Aluminium Alloys of Aerospace Materials & Processes

The voltage in the Hall-Heroult process is around __________(a) 2-9 V(b) 15.5-16.5 V(c) 26-45 V(d) 6-8 VI have been asked this question in my homework.I would like to ask this question from Chemical Processes of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium can be used to preserve milk or juice without the presence of cooling.(a) True(b) FalseI got this question by my school teacher while I was bunking the class.Enquiry is from Applications and Advantages of Aluminium in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

________ of all the food products in the world are packaged using aluminium.(a) 1/5(b) 1/3(c) 1/2(d) 2/3I have been asked this question in homework.Question is taken from Applications and Advantages of Aluminium topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium can be extracted using electrometallurgy.(a) True(b) FalseThis question was addressed to me by my school principal while I was bunking the class.Origin of the question is Chemical Processes of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

Which of the following is not an aluminium alloy?(a) Al-Si(b) Al-Zn(c) Al-Mn(d) Al-UThe question was posed to me in an online interview.I would like to ask this question from Wrought Aluminium and it’s Alloys in portion Wrought Aluminium Alloys of Aerospace Materials & Processes

The primary commercial source for aluminium is ____________(a) coal(b) bauxite(c) magnetite(d) pyriteThe question was posed to me in an interview.The origin of the question is Wrought Aluminium and it’s Alloys topic in division Wrought Aluminium Alloys of Aerospace Materials & Processes

Aluminium is used in manufacturing medicines.(a) True(b) FalseThe question was asked during an online interview.I want to ask this question from Applications and Advantages of Aluminium in division Wrought Aluminium Alloys of Aerospace Materials & Processes

_______ percent of earth’s crust is aluminium.(a) 3%(b) 25%(c) 60%(d) 7%This question was addressed to me at a job interview.This intriguing question comes from Applications and Advantages of Aluminium topic in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

The Hall-Heroult process is used for ___________ aluminium.(a) breaking(b) distributing(c) smelting(d) mixingThe question was asked in a job interview.My question is based upon Chemical Processes of Aluminium in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes

Pitting of the surface is a kind of aluminium alloy __________(a) corrosion(b) annealing(c) strength(d) manufacturing methodI had been asked this question in an online quiz.The query is from Wrought Aluminium and it’s Alloys in chapter Wrought Aluminium Alloys of Aerospace Materials & Processes