Engineering FE Engineering Common Sem 2 December 2018 2018 Applied Chemistry II Question Paper - Mumbai University | munotes

Questions asked in this paper

• Please check whether you have got the right question paper

1. Q2 Attempt any three questions from remaining five questions
2. Q3 Figures to the right indicate Full marks
3. Q4 All questions carry equal marks
4. Q1 Answer any five from the following 15 marks
   • a) Distinguish between anodic and cathodic coatings for corrosion prevention
   • b) What are Fuels? Give its classification
   • c) Give Composition, Properties and Uses of magnalumin
   • d) What are composite materials? Mention its applications
   • e) Explain the green chemistry principal prevention’
   • f) Explain with example, how the nature of volatile oxide film formed on the surface of metal influences the rate of corrosion
   • g) 1.5 g of the same coal sample in a Bomb-calorimeter experiment gave 0.36 g Calculate percentage of S in the coal sample
5. Q2 a) Explain the mechanism of following types of corrosion 6 marks
   • b) Define cracking of hydrocarbons. Explain fixed bed catalytic cracking. 05
   • c) Calculate % Atom Economy for the following reaction 04
6. Q3 a) A fuel sample has the following composition: C2H4 = 38%, = 14%, CO=7%, water vapour = 2.0% and rest is nitrogen. Calculate the volume of oxygen and air required for complete combustion of 5m? of fuel 6 marks
   • b) Explain Conventional and Greener route for synthesis of Adipic acid. Mention the 05
   • c). How do the following factors related to nature of environment affect corrosion? 04
   • i) Relative area of anode and cathode 1i) Temperature
7. Q4 a) What are nonferrous alloys? Distinguish between brass and bronze. 6 marks
   • b) What is the principle of cathodic protection? Explain impressed current protection 05
   • c) Write a sandwich panel composites. 04
   • Q.P. Code :38692
8. Q5 a) What is Biodiesel? Give 'Trans-esterification', reaction to obtain Biodiesel from vegetable oils. Mention its advantages 6 marks
   • b) What is powder metallurgy? Explain Mechanical Pulverisation and. Atomization 05 methods for manufacturing metal powders
   • c) What are the important properties of composite materials? 04
9. Q6 a) Mention methods for applying metal coatings on the metals? Give brief account of 5 marks
   • b) sample contains, C=82%, H= 4%, N =1 % and Ash= 5.5%. 05 Calculate the GCV and NCV of given coal sample
   • c) Discuss the various steps involved in powder metallurgy and mention its application. 05

Read from the scan above, so a character or two may differ. The scan is the original.