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967
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Write preparation properties and uses of any two of the following: (i) Polymethyl methacrylate (PMMA) (ii) Urea formaldehyde (iii) Buna-S
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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Give reasons to explain why natural rubber needs vulcanization.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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1.8k
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Define and explain the significance of the following properties of lubricants (any two) (i) Flash and Fire point (ii) Acid value (iii) Viscosity and viscosity Index.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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645
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Why is Hot lime-soda process preferred over cold lime-soda method?
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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What is Triple point? Explain it with reference to one component water system.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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826
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Define: Lubricants, Lubrication. Discuss the boundary-film Lubrication mechanism.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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970
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Write the preparation, properties and uses of any two of the following: i) Kevlar ii) PMMA iii) Buna-S
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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1.2k
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Give the preparation, properties and uses of Buna-3.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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556
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Under which conditions use of semi solid lubricants is preferred.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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1.6k
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Buna S rubber
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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25k
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Write synthesis, properties and applications of Buna S.
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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951
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Give the preperation, properties and uses of : (i) PMMA (ii) Buna-s
engineering chemistry updated 4.0 years ago by pedsangini276 • 4.8k
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State the principle and working of photovoltaic cell used for solar energy.
engineering chemistry updated 4.0 years ago by Shaik_Sumiya_34 • 40
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What are refractories? Give the preparation, properties and uses Carborundum bricks.
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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1.1k
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(i) Decay of concrete (ii) Setting and hardening of cement.
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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1.4k
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Explain application of Gibbs phase rule to one component system.
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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1.7k
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Under which conditions use of semi solid lubricants is preferred?
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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895
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Describe a moulding method suitable for thermoplastic resins.
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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1.4k
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Draw neat diagram of rotary kiln in the manufacture of Portland cement? And mention the reactions in each zone.
engineering chemistry updated 4.0 years ago by teamques10 ★ 70k
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9.1k
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Outline the chemical reactions involved in the lime-soda method of softening water.
engineering chemistry updated 4.0 years ago by Shaik_Sumiya_34 • 40
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2.6k
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2
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Draw a neat diagram and explain working of photovoltaic cell.
engineering chemistry updated 4.1 years ago by kunalpathare1119 • 260
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1.7k
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1
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Define lubrication and give functions of lubricant.
engineering chemistry updated 4.1 years ago by teamques10 ★ 70k
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3.2k
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Explain construction and working of a solar cell.
engineering chemistry updated 4.1 years ago by kunalpathare1119 • 260
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1.6k
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1
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What is SWCNT and MWCNT? Explain Laser method for the manufacturing of carbon nanotubes.
engineering chemistry updated 4.1 years ago by yashbeer ★ 11k
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2.7k
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Explain Laser method for the manufacturing of carbon nanotubes.
engineering chemistry updated 4.4 years ago by teamques10 ★ 70k
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