Kerala University 2007-2nd Sem B.Tech Computer Science and Engineering Combined First and -university question paper

Combined First and Second Semester B.Tech. Degree Examination, May 2007

(2003 Scheme)

ENGINEERING CHEMISTRY (CMNPHETARUFB)

Time: 3 Hours    Max. Marks: 100

PART - A

Answer all questions. Each question carries 4 marks.

1. Describe the experimental method of determination of single electrode potential.

. 2. What are concentration cells ? Calculate the emf of the following cell Cu(s), Cu²⁺(0.2M) || Cu²⁺(2.0 M), Cu.

3.    Define corrosion. Explain the mechanism of wet corrosion.

4.    With examples explain the functions of extenders, antiskinning agents and plasticizers in paints. '

5.    What is Rf value ? What is its use in chromatography ?

6.    What is caustic embrittlement ? Give the contributing factors, u

7.    Differentiate IR and uv spectroscopy.

8.    Define H.C.V. and L.C.V. How are they related ?

9.    Write short note on setting and hardening of cement.

10.    Explain briefly the classification of explosives.    (10x4=40 Marks)

PART - B

Answer any two questions from each module. Each question carries 10 marks.

MODULE - I

11.    What are storage cells ? Explain the construction, working and uses of Lead Storage Battery.

12.    Discuss the important methods used for corrosion control.

13.    What is paint ? Describe the different ingredients and their functions of a paint.

P.TO.

MODULE - II

14.    Calculate the amount of lime and soda required to soften 10,000 litres of water containing the following. MgS0₄ = 50 mg/L, Ca(HC0₃)₂ = 55 mg/L and MgCl₂ - 15 mg/L.

15.    What are the different sources of atmospheric pollution and describe the methods of control ?

16.    Briefly explain differential thermal analysis.

MODULE - III

17.    Explain the determination of calorific value of gaseous fuels by Boys gas calorimeter. "

18.    Write notes on:

a)    Solid Lubricants    ~    -

b)    Semisolid Lubricants

c)    Flash and Fire point

19.    a) Explain compounding of rubber.

b) Write short note on vulcanisation of rubber.    (6x10=60 Marks)

Attachment: kerala-university-2007-b-tech-computer-science-and-engineering-39858-1.pdf

Earning:   Approval pending.