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: 2018-2019
Date: December 2018
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Questions number 1 is compulsory.
Attempt any three questions from Q.2 to Q.6 .
Explain the principle of EDTA method .
Chapter: [1] Water
What is glass transition temperature ?Write its significance .
Chapter: [2] Polymers
Write the significance of the following properties of lubricants.
i)Emulsification ii)Cloud point iii)Fire point
Chapter: [4] Lubricants
What is RCC ? What are the advantages of RCC over concrete?
Chapter: [6.01] Cement
Explain the reduced phase rule .
Chapter: [5] Phase Rule
Distinguish between thermoplastic and thermosetting polymer.
Chapter: [2] Polymers
20 ml sample of waste water was refluxed with 30 ml of potassium dichromate solution and after refluxing the excess unreacted dichromate required 11 ml of 0.1 N FAS solution . Blank of 20 ml of distilled water on refluxing with 30 ml of dichromate solution required 14 ml of 0.1 N FAS solution . Calculate the COD value of waste water .
Chapter: [1] Water
A sample of water contains following impurities :
Mg(HCO3)2 =73 mg/lit , MgSO4 = 120 mg/lit , CaCl2 = 222 mg/lit and Ca(NO3)2 = 164 mg/lit . The purity of lime is 74% and soda is 90% . Calculate the quantity of lime and soda needed for softening of 50,000 litres of water .
Chapter: [1] Water
Write a brief note on polymers used in medical field .
Chapter:
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Name two additives added in blended oils .Give one example of each .
Chapter: [4] Lubricants
Explain with the help of chemical reactions “ Setting and Hardening “ of cement .
Chapter: [6.01] Cement
What is fabrication of plastic ? Explain injection moulding process with a neat diagram .
Chapter: [2] Polymers
Discuss the advantage and limitations of the phase rule .
Chapter: [5] Phase Rule
Differentiate between SWNT and MWNT .
Chapter: [6.02] Nanomaterials
A zeolite softener was completely exhausted and was generated by passing 1000 litres of NaCl .How many litres of a sample of hardness 500 ppm can be softened by this softener ?
Chapter: [1] Water
Draw the diagram for demineralization process and write suitable reactions involved in the process .What are the advantages and disadvantages of the method .
Chapter: [1] Water
Find the acid value of the given oil whose 20 ml required 2.8 ml of N/10 KOH during titration .( Density of oil =0.86 g/ml )
Chapter: [4] Lubricants
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Write a short note on decay of concrete .
Chapter: [6.01] Cement
Natural rubber requires vulcanization .Give reasons .With appropriate reactions explain how the drawbacks are overcome.
Chapter: [2] Polymers
Write preparation ,properties and uses of following polymers : i) Kevlar ii) Silicone rubber iii) Buna S
Chapter: [2] Polymers
Explain Activated sludge method with the help of diagram
Chapter: [1] Water
What is grease ? What are the conditions in which greases are used ?
Chapter: [4] Lubricants
Draw the phase diagram of one component system and find out the number of degree of freedom along the curves and areas .
Chapter: [5] Phase Rule
What are lubricants ? Define lubrication .Explain Hydrodynamic lubrication mechanism with neat diagram .
Chapter: [4] Lubricants
Define
a) Phase b) Component c) Degree of freedom
Chapter: [5] Phase Rule
Write a short note on Reverse Osmosis .
Chapter: [1] Water
Explain laser ablation method for production of CNT’s
Chapter: [6.02] Nanomaterials
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