last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope 1.1 The primary objective of metallographic examinations is to reveal the constituents and structure of metals and their alloys by means of the light microscope. In special cases‚ the objective of the examination may require the development of less detail than in other cases but‚ under nearly all conditions‚ the proper selection and preparation of the specimen is of major
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References: Alloy‚ L. (2004). Abnormal Psychology: Current Perspective‚ 9th Ed. McGraw Hill Co. Baird‚ T. & August‚ G. (1985). Familial Heterogeneity in Infantile Autism. Journal of Autism and Development Disorders. 15‚ 315 – 321. Gillberg‚ C. & Coleman‚ M. (2000)
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BS 3551:1962 BRITISH STANDARD Incorporating amendment issued August 1963 (PD 4964) Specification for Alloy steel shackles --`‚‚``‚‚````````‚‚‚``‚‚‚`‚``‚``-`-`‚‚`‚‚`‚`‚‚`--- [UDC 621.885.7:669.15] Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Licensee=BP International/5928366101 Not for Resale‚ 06/04/2010 04:58:11 MDT BS 3551:1962 Co-operating organizations
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guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch
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than water‚ and has great strength when alloyed‚ it doesnt rust and has high electrical conductivity‚ and Aluminium is also ductile‚ making it a very useful metal. Aluminium readily makes alloys with copper‚ zinc‚ magnesium‚ manganese and silicon. Aluminium foil is 92-99% pure aluminium. Other uses of aluminium alloys include computers (all Apple MacBooks are made from aluminium)‚ cooking utensils‚ transportation (aircraft‚ rockets and cars mainly because of their high strength-to-weight ratio)‚ packaging
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Page 1 of 63 PIPING QUESTIONAIRE Questions related to Codes & standard: 1. What is the ASME code followed for design of piping systems in Process piping (Refineries & Chemical Industries)? (i) B 31.1 (ii) B 31.3 (iii) B 31.5 (iv) B 31.9 Answer (II) 2. Which American institute standard does piping engineer refer? Answer: A. B. C. D. E. F. G. The American Petroleum institute (API). The American Iron & Steel institute (AISI). The American Society for Testing and materials (ASTM). The American
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Engineering Studies: Aeronautical Engineering Outcomes being assessed: H2.1 – determines suitable properties‚ uses and applications of materials in engineering H3.1 – demonstrates proficiency in the use of mathematical ‚ scientific and graphical methods to analyze and solve problems of engineering practice H3.2 – uses appropriate written‚ oral and presentation skills in the preparation of detailed engineering reports H5.1 – works individually and in teams to solve engineering problems and
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http://www.plating.com/platingtechnical/poorsdhesion.htm POOR ADHESION Poor adhesion results in the chrome deposit separating from the substrate. This can occur as either peeling or blistering of the chromium layer‚ and can happen immediately as the part comes out of the bath‚ or later when it is put into service. Unfortunately‚ a viable nondestructive test for adhesion is not available. An inconclusive tests is to immerse the part in boiling water AP‚ until it is up to temperature‚ then immediately
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Casting Processes Sand Casting http://www.youtube.com/watch?v=rgL2Jn5mk1A http://www.youtube.com/watch?v=dlQ54WATvzA Investment Casting http://www.youtube.com/watch?v=tyrXq_u1OH0 http://www.youtube.com/watch?v=dOw624I9FDQ Die Casting http://www.youtube.com/watch?v=LH8B3i6e8d4 http://www.youtube.com/watch?v=1AgDGLNE6Es Continous Casting http://www.youtube.com/watch?v=d-72gc6I-_E Centrifugal Casting http://www.youtube.com/watch?v=3qKGx_AxHp0 Process Physics 1 A1 V1 2 V2
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Elasticity of Solids Deformation: Changes in shape or size of an object through the application of external forces. Elasticity: Property which allows a material to regain its shape after being distorted. Elastic Limit: The maximum amounts by which an object or a material can be stretched and still regain its original shape after the distorting forces are removed. An object or a material which returns to its original length or size after being distorted suffers elastic deformation
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