Biju Patnaik University of Technology 2007-3rd Sem B.Tech Computer Science Information Technology Chemistry 2- Question Paper
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Total number of printed pages - 7 B. Tech BSCC2201 |
Full Marks-70
Time: 3 Hours
Answer Question No. 1 which is compulsory and any five from ths fQst.
The figures in the right'hand margin indicate marks.
(a) What is zeolite ?
,b, Which is preferable lor sterilization of drinking water: chloramine or chlorine ? Give reason.
P.T.O.
(c) Why is a little steam mixed air used during production of producer gas 7
(d) What do you mean by knocking ?
fe) Why smaller anodes lead tc intense corrosion ?
(f) Why do LDPE and HOPE differ in density ?
(g) What is an elastomer ?
(h) What are the sources of mercury In water ?
(i) What is sewerage ?
(jj Explain how can caustic embrittlement be prevented by addition of sodium sufphate BSCC 2201 2 Contd.
2 (a) Discuss about the characteristics Of a good fuel, 4
(b) What is water gas ? How is it produced?
4
(c) Whal is meant by calorific value of a fuel?
2
3, (a) Whal are the significance of octane number andi cetaoe number ? How can octane number of a fuel be improved ?
4
(b) Why is bromide compound added with TEL ? 2
(c) A fuel has the following composition
C=S7%tH = 6%10=2%lS=0.5%,N=0-5%
and rest ash. Calculate HCV and LCV of BSCC 2201 3 PT0'
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the fue/. Explain why these values are different, (calorificvalues C=8060kcaf/kg. H GSOOkcal/kg, S=2240kcal/kg). 4 fa) Why water used in boiler requires treat* ment ? <at Describe ion exchange process. What are the advantages and disadvantages of 4 www.ibput.com) DfccucKh * * Discuss how municipal water is (b) What is hardness ? Distinguish between carbonate and noncarbonate hardness. the process. <0 0.25gram of CaC03 was diSS0|ved in HC| and made upto one litre with distilled water. 100 mi of above solution required 0 ml of EDTA solution on titrati'on. 100 ml o' hard waler requtrod 60 ml of same point 2 EDTA solution and 100 ml 0( boiled hard ism of BSCC 2201 4 Contd. P.TO. |
wator required 20 ml of EDTA solution Calculate temporary, permanent and total hardness of water. punned 4 (C) What are the advantages of break chlorination ? 6. (a) Discuss about calionic mechani |
8 (a) What is green house effect? What are its
effects ?
(b) Discuss the method of manufacturing and uses of PVC. 4
(c) What are silicones ? Discuss about manufacturing of silicones, 4
(a) A pure metal rod is half immersed in water. Where does corrosion start in this case and why ?
(b) Discuss about biological sewage treat-
ment process ?
7.
(c) What are the significance of ratio of BOD to COD ? 3
www. orkut. co. in/Main#F rien dAdd?
<b> What is cathodic protection ? D-fPio&uid=29335202178387
different types of cathodic protection wi*68667
suitable examples. 4
(c) Discuss about factors that influence
cor
rosion.
4
Contd.
BSCC 2201 -C
BSCC 2201
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| Earning: Approval pending. |
