Explain the different types of material used in refrigeration duct.
[5 marks]Write down the advantage and application of galvanized steel and05 carbon steel duct material.
[ marks]How Fibrous Glass duct insulation improves the indoor environment.
[5 marks]Explain the different types of material used in refrigeration05 Compressor.
[ marks]Explain the different types of different type of valve materials.
[5 marks]Explain the properties or characteristics of oil required for refrigeration system.
[ marks]Write the short note on selection of refrigeration lubricant.
[5 marks]Explain compatibility of lubricant with refrigerant fluid.
[5 marks]Write the effect of refrigeration on lubricant05 Density.
[ marks]Write the short note on cooling tower material.
[5 marks]Explain the different material used for RAC piping.
[5 marks]Explain how to select the material for the cooling tower.
[5 marks]Write the properties of synthetic repair Material.
[5 marks]Explain in detail the benefits of insulation.
[5 marks]Classify insulating materials.
[5 marks]Explain the different types of insulating materials.
[5 marks]Explain the elastomer materials with its advantages and05 disadvantages.
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