a) Cellulose b) Pectin c) Hemicellulose d) Lignin Answer: b Explanation: Pectin is not a constituent of ...
View QuestionPaper derives its name from _________
a) Papyres b) Pyrus c) Palpable d) Papyrus Answer: d Explanation: Paper derives its name from the ...
View QuestionThe fibrous raw material for production of paper is called _______
a) Pulp b) Hemicellulose c) Cellulose d) Lignin Answer: a Explanation: Pulp is the fibrous raw material ...
View QuestionIn general, temperatures for melt phase thermoformed Polypropylene is greater than SPPF Polypropylene.
a) True b) False Answer: a Explanation: The above statement is true. In general, temperatures for melt ...
View Question_______ are defined as plastics whose apparent density is decreased.
a) Cellular plastics b) Polyplastics c) Thermoplastics d) Artificial plastics Answer: a Explanation: Cellular plastics are defined ...
View QuestionThe two dominant means of thermoforming sheet for food packaging containers are _____ & _____
a) Solid phase pressure forming, liquid phase pressure forming b) Liquid phase process, vapour phase pressure forming c) ...
View QuestionThe CPET containers, made by thermoforming are stable upto what temperature?
a) 230°C b) 150°C c) 300°C d) 500°C Answer: a Explanation: CPET (Crystallized Polyethylene terephthalate)containers, made by ...
View QuestionThermoforming is the same as blow moulding.
a) True b) False Answer: b Explanation: The given statemet is false. Thermoforming and blow moulding ...
View QuestionWhich of the following is not a mold used in thermoforming?
a) Aluminium mold b) Steel mold c) Wooden mold d) Plastic mold Answer: b Explanation: Steel ...
View QuestionThermoforming can be generally classified as ________ and _______ thermoforming.
a) pressure, temperature b) vacuum, pressure c) Thick gauge, thin gauge d) Temperature, vacuum Answer: c
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