37801. __________ polymer is used for making unbreakable crockery.
37802. Flexible plastic pipes are made of
37803. Main constituent of natural rubber is
37804. In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
37805. The density of the acid in lead acid battery gives of an indication of
37806. The minimum insulation resistance of a water heater is
37807. A solenoid is defined as an electromagnet
37808. __________ is produced by polymerisation of chloroprene.
37809. Two Watt meter method is used to measure the power in -------load
37810. Pick out the wrong statement regarding the solubility characteristics of high polymers.
37811. Ebonite is a/an
37812. Elastomers are
37813. Which of the following additives are added to plastics to make it impervious to X-rays ?
37814. Paper like thin plastic articles can be produced by
37815. Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
37816. Benzoyl chloride is not used as a catalyst in the manufacture of
37817. Epoxy resin is a polymer containing two or more groups called epoxide group or ethoxyline group. It is a
37818. The conversion of caprolactum in the above case is about __________ percent.
37819. Polycaprolactum is also known as
37820. __________ scrap can be recycled & reutilised.
37821. All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic
37822. Polymerisation product of C2F4 (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called
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