STUPIDSID
1(a)
What is meant by softening of water? With a neat sc
hematic diagram, describe cold lime soda process
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1(b)
What are the characteristic of a good fuel? Explain
any one method of analysis
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2(a)
Define the desalination of brackish water and Explain method of electro dialysis.
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2(b)
Calculate the temporary and total Hardness of water
sample containing
following data in mg/L.
\[Mg(HCO_{3})_{2}=73;Ca(HCO_{3})_{2}=162;MgCl_{2}=95; CaSO_{4}=136\\] Give molecular weight of \[Mg(HCO_{3})_{2}=146; Ca(HCO_{3})_{2}=162; MgCl_{2}=95; CaSO_{4}=136\\]
\[Mg(HCO_{3})_{2}=73;Ca(HCO_{3})_{2}=162;MgCl_{2}=95; CaSO_{4}=136\\] Give molecular weight of \[Mg(HCO_{3})_{2}=146; Ca(HCO_{3})_{2}=162; MgCl_{2}=95; CaSO_{4}=136\\]
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3(a)
Describe with the help of a neat diagram of rotary
kiln for the manufacture of Portland cement by wet process
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3(b)
Discuss the classification of polymers.
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4(a)
What are the constituents of Portland cement? Discu
ss the mechanism of setting and hardening of Portland cement.
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4(b)
Explain the types of polymerization giving suitable
examples.
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5(a)
Explain the mechanism of electrochemical corrosion
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5(b)
What is galvanic corrosion? Explain its mechanism.
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6(a)
Define heat treatment and explain the following met
hods.
(i) Annealing; (ii) Hardening.
(i) Annealing; (ii) Hardening.
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6(b)
Define the term lubricant. Explain the following pr
operties of lubricants and their significance.
(i)Viscosity; (ii) Flash point.
(i)Viscosity; (ii) Flash point.
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7(a)
Describe the process of melt spinning and wet spinning of fibers.
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7(b)
Explain the manufacture of ethyl alcohol by fermentation
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