a) 40°C, 2 h b) 60°C, 2.5 h c) 40°C, 3 h d) 10°C, 4 h Answer: ...
View Question________ is the term used for bleaching of mechanical pulp.
a) Whitening b) Lightening c) Chroming d) Brightening Answer: d Explanation: Brightening is the term used for ...
View Question_________ present in lignin is responsible for its color.
a) Chromophores b) Corona c) Chomosomes d) Tonoplast Answer: a Explanation: Chromophores present in lignin is ...
View QuestionBleaching improves the strength of the pulp.
a) True b) False Answer: b Explanation: The given statement is false. Bleaching reduces the strength of the ...
View QuestionWhich of the following component is majorly responsible for color of the pulp?
a) Cellulose b) Lignin c) Hemicellulose d) Pectin Answer: b Explanation: Lignin is majorly responsible for ...
View QuestionWhich of the following is the primary objective of bleaching?
a) To increase strength b) To maximize yield c) To increase brightness d) To remove lignin Answer: ...
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Arrange the following processes in the right order from beginning to end in the paper making process.
i. Bleaching
ii. Pulping
iii. Screening
iv. Digestion
v. Washing
Arrange the following processes in the right order from beginning to end in the paper making process. i. ...
View QuestionAfter steaming at ______ pressure, the chips are brought to the digester pressure of ______ kPa.
a) Low, 500 b) High, 500 c) High, 1000 d) Low, 1000 Answer: d Explanation: After ...
View QuestionWhich of the following is the primary function of digestion?
a) To separate the fibers b) To produce a well cooked pulp c) To bleach the pulp d) ...
View Question______ is the process after pulping.
a) Rolling b) Bleaching c) Digestion d) Sheeting Answer: c Explanation: Digestion is the process after ...
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