Question # 1

During pulp making, the pH of digester is maintained at.

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1-2

3-5

6-8

7-9

The word paper is derived from the name of which reed plant.

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Rose

Sun flower

Papyrus

Water Hyacinth

Which is not a calcarious material

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Clay

Limestone

Marble

Chalk

The word paper is derived from the name of which reedy plant

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Rose

Sun flower

Papyrus

Water

Which process of pulp making is mostly used in Pakistan.

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Kraft process

Sulphite process

Neutral sulphite semi chemical process

Wet process

Usually the percentage of moisture is paper is

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1- 3%

4-6%

6-8%

5%

Potassium fertilizers are especially useful for

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Tobacco

Coffee

Potato

All of these

Ammonium Nitrate fertilizer is not useful for

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Wheat

Cotton

Sugan cane

Paddyrice

Setting process of cement is based upon

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Hydrolysis

Hydration

Dehydration

Botha a and b

The macronutrients are required in quantities ranging from

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4-40 kg per acre

10-100 kg per acre

5-100 kg per acre

5-200 kg per acre

Micronutrients for plant are those which

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Are required in very large amount

Are required in very small amount

Are produced from plants in very small amount

Retard the growth of plants

Which elements are needed for healthy growth of plants

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N,S,P

N,Ca,P

N,P,K

N,K,C

Which substance is used ot bleach the pulp.

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Na2SO3

NaCl

NaClO

NaOH

One of following is argillaceous material

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Marble

Clay

Lime

Marine Shell

What is the function of Head box in paper making machine.

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It reduces the thickness of paper

It dry the paper

It discharge teh pulp at the screen of fourdrinier table

Web structure is consolidated

Conversion of ammonium carbamate into urea is

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Hydrolysis

Hydrogenation

Hydration

Dehydration

Which one of the followings is woody raw material used for making pulp and paper

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Eucalyptus

Wheat straw

Bagasse

Cotton linter

What is clinker

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Roasted calcareous material

Roasted argillaceous material

Roasted calcareous and argillaceous material

Roasted gyposum

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