Module 06 - EASA Questions 1. The property of a metal to resist deformation when subjected to a tensile load and is proportional to the maximum stress required to cause fracture: a. Tenacity. b. Toughness. c. Tensile strength. 2. The ability of a metal to resist wear and penetration is defined as: a. Hardness. b. Toughness. c. Bearing strength. 3. What is the strain of a 1.2m tube which as extended 15mm? a. 0.0125. b. 0.0125Nm-2. A Load (N) B C D Extension (m) c
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mechanisms for the strengthening of metal alloys. It influences some properties of the alloys such as strength‚ hardness and ductility. The purpose of this experiment was to test the effect of temperature and aging time on strength and hardness of 6060 aluminium alloy samples that have roughly similar compositions by subjecting them to different temperatures for different periods of time. The experiment showed that the strength and hardness of the samples increased when they were allowed to age for longer
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bauxite mining in … The Belarusian automobile manufacturer OAO BelAZ has shipped a batch of five mine dump trucks with the carrying capacity of 90 tonnes to Venezuela‚ representatives of ... CBG Bauxite (Aluminium Ore) Mining Operations - … The largest single producer of bauxite (aluminium ore) in the world‚ Cie des Bauxites de Guinée’s (CBG) operations are located in the west of Guinea‚ close to the ... Operations The DS Mirage loaded at Port of Cabo Rojo with bauxite ready to set
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atmospheric condition i.e.‚ moist air‚ carbon dioxide form undesirable compounds on the surface is known as corrosion. The compounds formed are usually oxides. Rusting is also a type of corrosion but the term is restricted to iron or products made from it. Iron is easily prone to rusting making its surface rough. Chemically‚ rust is a hydrated ferric oxide. Rusting‚ an electrochemical mechanism: Rusting may be explained by an electrochemical mechanism. In the presence of moist air containing dissolved
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handled can be divided into cement kiln‚ metallurgy and chemical kiln and kiln. It is mainly used in metallurgy and chemical kiln steel metallurgical industry lean iron ore magnetized calcination‚ Chromium and nickel and iron oxide calcination‚ Refractory plant calcination high aluminium vanadium and soil ore and aluminum plant calcination clinker‚ aluminum hydroxide‚ Chemical GeKuangSha and chromium ore pellets such minerals. Kiln (namely active linme kiln) for calcination steel mills‚ ferroalloy factory
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explode. It reacts with non-metallic elements except for nitrogen‚ oxygen‚ noble gases‚ silicon and halogens. It oxides them to their highest oxidation states(3) as acids with the formation of nitrogen dioxide for concentrated acid and nitric oxide for dilute acid. Chromium (Cr)‚ iron (Fe) and aluminium (Al) dissolve in dilute nitric acid‚ which the concentrated acid forms a metal oxide layer that protects the metal from further oxidation‚ and it is called passivation. Nitric acid can be made
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Al-B4C composites. Attempts were made to overcome the wetting problem between B4C and liquid aluminium at lower temperatures for promising the mechanical and tribological behaviour of the Al -B4C composites. AA6061-B4C particle reinforced composites were produced through casting route at 850ºC with K2TiF6 added as flux to overcome the wetting problem between B4C and liquid aluminium metal. The Aluminium B4C composite samples were subsequently subjected to T6 heat treatment. The composite samples
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Q. 7. Ammonium salts decomposes on heating. What other property do ammonium salts have in common ? Q. 8. The following reactions are carried out : A: Nitrogen + metal → compound X B: X + water → ammonia + another compound C: Ammonia + metal oxide → metal + water + N2. (1) One metal that can be used for reaction A is magnesium. i. Write the formula of the compound X formed. ii. Write the correctly balanced equation for reaction B where X is the compound formed. iii. What property of ammonia
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Lecture based on Materials (Book: The science of strong materials‚ Penguin Publishers.) The aeronautical journal (Library can order for you)‚ one article written in 1996‚ by Peal‚ I.J.Mocolm. Ceramic Science‚ pg 123-131. (Relevant to exam) There are two key reasons for using thermoplastic composites: * save time & handling costs in production * eliminate labour-intensive riveting & bonding * can produce large profile sections that are some 20 % lighter than metal &
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each bottle would most readily enable the bottles to be correctly relabelled? A B C D ammonia hydrochloric acid lead(II) nitrate sodium hydroxide © UCLES 2011 5070/11/O/N/11 3 3 Oxygen was prepared from hydrogen peroxide‚ with manganese(IV) oxide as
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