MCQs: Tin vessels are corroded by____________________?
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MCQs: Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. Lead pipes are readily corroded by_________________?
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MCQs: Presence of high amount of silicon in cast iron________________?
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MCQs: The main purpose of galvanising iron sheets is to___________________?
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MCQs: The temperature at which new grains are formed in the metal is called the ______________ temperature?
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MCQs: Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (1/20th of ordinary metals) ?
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MCQs: Caustic soda can be stored in _____________ drums?
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MCQs: Addition of ______________ to the steel helps in increasing the residual magnetism in steel used for making magnets?
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MCQs: The material of construction of pressure mills used for squeezing out the juice from sugar cane is__________________?
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MCQs: Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and_________________?
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MCQs: Most common stainless steel type 316, which is highly resistant to corrosion contains______________?
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MCQs: Galvanised iron is___________________?
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MCQs: Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as_____________________?
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MCQs: Cermets are ______________ materials?
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MCQs: Molten phthalic anhydride is stored in a/an _______________ vessel?
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MCQs: 18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
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MCQs: Generally _____________ are subjected to galvanising (i.e., zinc coating)?
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MCQs: Which of the following is a light alloy ?
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MCQs: Which of the following is not a non-ferrous alloy ?
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MCQs: Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of ______________ as mercury does not amalgamate with it?
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