Advanced Engineering Chemistry 2014 Question Paper — Government Colle…
The 2014 Advanced Engineering Chemistry previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Subject: Advanced Engineering Chemistry
- Course: Engineering Chemistry
- Branch: BE-II/6(A)
- Year: 2014
- Paper: end-term
- Duration: 180 minutes
- Total marks: 100
Instructions
- Attempt five questions in all, selecting at least two questions from each section.
- All question carry equal marks.
Questions
SECTION - A
- Q1. (a) Describe briefly the various segments of environment. (10) (b) What are primary air pollutants? Discuss their sources and relative contribution to air pollution. (10) [20 marks]
- Q2. (a) Explain the biochemical effects of mercury and lead. Suggest antidotes for these toxic metals. (10) (b) Define water pollution. How are water pollutants classified? Give suitable examples. (10) [20 marks]
- Q3. (a) How are cements classified? Give the various physico-chemical reactions responsible for the setting and hardening of portland cement. (12) (b) Describe with neat sketch the manufacture of lime. (8) [20 marks]
- Q4. (a) What is the principle of EDTA method? Describe the estimation of hardness of water by EDTA method. (12) (b) Describe the causes and harmful effects of scale formation. (8) [20 marks]
SECTION - B
- Q5. (a) What are two main types of plastics? In what respects do they differ from each other? (6) (b) Give preparation, properties and uses of : (i) Plexiglass (ii) Epoxy resins. (14) [20 marks]
- Q6. (a) What are elastomers? Give the preparation, properties and uses of styrene and nitrile rubbers. (10) (b) What is latex? How is natural rubber isolated from it? Why does natural rubber need vulcanization? (10) [20 marks]
- Q7. (a) What is a paint? What are the essential ingredients of a paint and explain their functions? (10) (b) How is paint manufactured in Industry? (6) (c) Give the requisites of a good paint. (4) [20 marks]
- Q8. (i) How do double bonds in rubber molecules influence their structures and reactivity? (5) (ii) Why is virgin rubber considered useless as pure good? (5) (iii) Why cannot thermosetting plastics be reused and reshaped? (5) (iv) Why are plastics indispensable in everyday life? (5) (v) Why are thinners used in paints. (5) [25 marks]