a) True b) False Answer: b Explanation: The given statement is false. Chemical pulping method uses alkali ...
View QuestionThe kappa number of bleachable hardwood pulps is ________
a) 20–30 b) 30–40 c) 10–20 d) 18–20 Answer: d Explanation: The kappa number of bleachable hardwood ...
View QuestionThe kappa number of bleachable softwood pulps is _______
a) 10-20 b) 20-30 c) 30-40 d) 40-50 Answer: c Explanation: The kappa number of bleachable softwood ...
View QuestionThe primary goal of chemical pulping is to selectively remove as much lignin as possible.
a) True b) False Answer: a Explanation: The given statement is true. The primary goal of ...
View QuestionChemical pulping mostly uses which of the following chemical?
a) Sodium Nitrate b) Potassium Hydroxide c) Calcium Carbonate d) Sodium Hydroxide Answer: d Explanation: All ...
View QuestionThermal treatment increases flexibility of mechanical pulps.
a) True b) False Answer: a Explanation: The given statement is true. Thermomechanical pulping (TMP) presteams ...
View QuestionWhat is used for pretreatment in Chemithermomechanical pulping?
a) Calcium propionate b) Calcium carbonate c) Sodium nitrate d) Sodium sulfite Answer: d Explanation: Chemithermomechanical pulping ...
View QuestionWhich pulping process is suitable for manufacturing of the middle layer of multi-ply boards?
a) Mechanical pupling b) Kraft pulping c) Thermomechanical pulping d) Chemithermomechanical pulping Answer: ...
View QuestionPaper from which pulp is mostly used for newspaper?
a) Groundwood pulp b) Thermochemical pulp c) Chemithermomechanical pulp d) Kraft process pulp Answer: a Explanation: Most ...
View QuestionPaper from mechanical pulp is stronger than that from chemical pulp.
a) True b) False Answer: b Explanation: The given statement is true. Paper from chemical pulp ...
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