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a. Location of Key: Enquire from the technicians as to who opens the laboratory. Does the lab staff have to take the keys from the office or do they have personal keys. (Also note how many keys are available for the lab and where they are located.)
b. Daily Duties Regarding Cleaning & Dusting
Enquire from the technicians as to who cleans the floors and dusts the equipment and also supervises this cleaning. During cleaning and dusting are there any precautions to be followed?
c. Daily Switching on and off of Lights and Equipment
Enquire who switches on the lights as well as equipment like distillation plants, ovens etc. in the morning and who switches them off in the evening before closing. In case of gas being used in the lab, find out if the main supply is switched off daily before the lab is closed. Also enquire:
i) if the main switch of the gas supply is located in the lab itself or elsewhere.
ii) if the technicians also know the location of mains for electricity and water supply as well as of the fire extinguisher
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how will you prepare acetal from methanal?
leaching
A double riveted double cover butt joint is used for connecting plates 1.2 cm thick. The diameter of the rivets is 2.2 cm. The permissible stresses in tension - 100 N/mm2 The per
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a) List various advantages and drawbacks of using transparent polymeric materials for eyeglass lenses. (b) Cite 4 properties (in addition to being transparent) that are important
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