Pulp & Paper Questions and Answers – Chemi-mechanical Pulping

This set of Pulp and Paper Multiple Choice Questions and Answers (MCQs) focuses on “Chemi-mechanical Pulping”.

1. Chemi-mechanical processes were originally named chemi-groundwood processes.
a) True
b) False
View Answer

Answer: a
Explanation: Chemi-mechanical processes were originally named chemi-groundwood processes because these chemical pre-treatments were developed and used commercially at a time when stone ground wood was the predominant mechanical process.

2. What is the full form of ESPRA?
a) Empire state paper research association
b) Entropy state pulp research association
c) Enthalpy state paper research academy
d) Empire state pound research association
View Answer

Answer: a
Explanation: Empire state paper research association, whose labs are in Syracuse, New York.

3. The most common chemi-mechanical process is?
a) SGW
b) PGW
c) RPM
d) CTMP
View Answer

Answer: d
Explanation: The pretreatments are hot sulfite or cold soda and are particularly applicable to hardwoods.
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4. In hot sulfite process pressurized hot sulfite liquor is used to treat __ prior to fibration.
a) Crackers
b) Cards
c) Plates
d) Chips
View Answer

Answers: d
Explanation: In hot sulfite process pressurized hot sulfite liquor is used to treat chips prior to fibration. This results in brighter pulp.

5. The cold soda process was first investigated by U.S. in?
a) 2000
b) 1950
c) 1860
d) 1974
View Answer

Answer: b
Explanation: The cold soda process was first investigated by U.S. in as a pre-treatment prior to making RMP.
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6. What is the full form of C.T.M.P?
a) Chemi-thermomechanical pulp
b) Chemi-mechanical pulp
c) Chemi-thermomechanical protein
d) Chemi-catalyst protein
View Answer

Answer: a
Explanation: C.T.M.P. is a process similar to TMP process except the chips are first pretreated with relatively small amounts of sodium sulfite.

7. What is the name of the process at the question mark area?
The name of the process is Chip inlet
a) Chip inlet
b) CTMP
c) Liquor level
d) Liquor inlet
View Answer

Answer: a
Explanation: Liquor impregnation working on the pressure-expansion technique.
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8. What is the name of the process at the question mark area?
The name of the process is Liquor level
a) Chip inlet
b) CTMP
c) Liquor level
d) Liquor inlet
View Answer

Answer: c
Explanation: Liquor impregnation making use of the pressure-expansion technique.

9. What is the name of the process at the question mark area?
The name of the process is Liquor inlet
a) Chip inlet
b) CTMP
c) Liquor level
d) Liquor inlet
View Answer

Answer: d
Explanation: Liquor impregnation utilizing the pressure-expansion technique.
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10. What is the name of the process at the question mark area?
The name of the process is Chip discharge
a) Chip inlet
b) Chip discharge
c) Liquor level
d) Liquor inlet
View Answer

Answer: b
Explanation: Liquor impregnation using the pressure-expansion technique.

Sanfoundry Global Education & Learning Series – Pulp and Paper.
To practice all areas of Pulp and Paper, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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