a) True b) False Answer: a Explanation: The given statement is true. Metallization process has a strong ...
View QuestionEnergy of an electron is upto ______ in electron beam heating.
a) 15eV b) 15keV c) 30eV d) 30keV Answer: b Explanation: Energy of an electron is ...
View QuestionWhich of the following is not a heating source in metallization?
a) Convection heating b) Resistance heating c) Induction heating d) Electron beam heating Answer: a Explanation: Convection ...
View QuestionWhich of the following metal is not used in vacuum metallization?
a) Aluminium b) Nickel c) Chromium d) Sodium Answer: d Explanation: Sodium is not used in metallization. ...
View QuestionA __________ is a highly concentrated blend of an additive and a carrier resin.
a) Masterpolymer b) Mastermixture c) Masterbatch d) Masterblend Answer: c Explanation: A masterbatch is a highly concentrated ...
View QuestionSmart blending works on the principle of ________
a) Chaotic addition b) Chaotic advection c) Chaotic adversion d) Chaotic abstraction Answer: b Explanation: Smart blending ...
View QuestionPolymers used for packaging films must have a surface energy – _______
a) 5-25 mNm-1 b) 29-45 mNm-1 c) 45-55 mNm-1 d) 10-25 mNm-1 Answer: b Explanation: Polymers ...
View QuestionWhich of the following materials is the outermost lamination layer in tetrapacks?
a) Polyester b) Polypropylene c) Polyethylene d) Polystyrene Answer: a Explanation: Polyester is ...
View QuestionLacquering and lamination are the same terms.
a) True b) False Answer: b Explanation: The given statement is false. Lacquering is a term ...
View QuestionASTM stands for _____
a) American Society for Testing Machines b) American Society for Tempering Machines c) American Society for Testing and ...
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