BE Civil Engineering
BE Computer Engineering
BE Mechanical Engineering
BE Biotechnology
BE Marine Engineering
BE Printing and Packaging Technology
BE Production Engineering
BE IT (Information Technology)
BE Electrical Engineering
BE Electronics and Telecommunication Engineering
BE Instrumentation Engineering
BE Electronics Engineering
BE Chemical Engineering
BE Construction Engineering
BE Biomedical Engineering
BE Automobile Engineering
Academic Year: 2015-2016
Date: November 2015
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Why is hot lime-soda process preferred over cold lime-soda method?
Chapter:
Define flash point and fire point. Give its significance.
Chapter:
What isTriple point? Explain it with reference to one component water system
Chapter:
Distinguish between thermoplastic and thermosetting resins.
Chapter:
A 5ml sample of waste water was refluxed with 30ml of potassium dichromate solution and after refluxing excess unreacted dichromate required 23ml of O.1M FAS solution. A blank of distilled water on refluxing with 30ml of dichromate solution required 36ml of O.1M FAS solution. Calculate the COD value of the waste water.
Chapter:
Calculate the quantity Of pure lime (70% pure) and soda (85% pure) required for softening of 100,000 Liters of water containing the following impurities
in ppm.
Ca(HCO3)2 = 30.2, Mg(HCO3)2 =20.8, CaCl2 = 28. 1, MgCl2 = 8.78, CaSO4 = 35, MgSO4 = 6.7, NaCl = 17.9.
Chapter:
Draw a neat labelled diagram for water system.
Chapter:
Using phase rule, find number of degrees of freedom (F) for the following systems;
- Ice(s) ↔ water (l) ↔ water vapour (g)
- Water ↔ water vapour
Chapter:
Explain preparation, properties and uses of silica bricks
Chapter:
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Discuss the boundary-film Lubrication mechanism.
Chapter:
Explain in details the injection moulding method
Chapter:
Write the preparation, properties and uses of any two of the following :
Chapter:
Write the preparation, properties and uses of PMMA
Chapter:
Write the preparation, properties and uses of Buna-S
Chapter:
Explain the activaed sludge method with a flow-sheet diagram.
Chapter:
Find the acid-value of a vegetable oil whose 5ml required 2ml of N/100 KOH during titration. (Density of oil = 0.92)g/ml
Chapter:
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Write short note on Setting and hardening of cement
Chapter:
Explain the functions of the following constituents in the compounding of plastics. Give proper examples. (Any two)
Chapter:
Explain the functions of the Fillers in the compounding of plastics
Chapter:
Explain the functions of the Plasticizers in the compounding of plastics
Chapter:
Explain the functions of the Lubricatnts in the compounding of plastics
Chapter:
The hardness of 75,000 litres of a.water sample was completely removed by a permutit. The exhausted permutit then required 1500L of NaCl containing 117 mg of NaCl per litre for regeneration Calculate the hardness of water sample.
Chapter:
Explain with a neat diagram, the zeolite process of water softening including the following points
- Principle
- Softening and regeneration reactions
- Process
- advantages
Chapter:
Discuss the improvement in the drawbacks of natural rubber after vulcanization
Chapter:
Under what conditions are solid lubricants used?
Chapter:
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