Question # 1

Which one of the following is calcareous material

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Marine shells

clay

Shale

Blast furnace slag

Which one of the following is inorganic fertilizer.

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Manure

Urea

Ammonium nitrate

All of these

Cement is a mixture of

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Clay and clinker

Clay, lime stone and gypsum

Lime stone and gypsum

Lime stone and clay

Woody raw material for paper pulp is obtained from

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Cotton

Bagasse

Poplar

Rice straw

the percentage of nitrogen in NH3 is

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46%

60%

82%

100%

Potassium fertilizers are especially useful for

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Tobacco

Coffee

Potato

All of these

Prilling is a process in which

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Concentration of urea is increased

Water is removed from urea

Molten urea is converted to solid drop

Some other ingredients are added to urea

Which one of the following is the macronutrient for plants.

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Boron

Zinc

Calcium

Nitrogen

The composition mixture of clay and lime stone in the raw material.

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75% lime stone and 25% clay

25% lime stone and 75% clay

15% lime stone and 55% clay

55% lime stone and 15% clay

Usually the percentage of moisture is paper is

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1- 3%

4-6%

6-8%

5%

The percentage of nitrogen in urea is.

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36%

46%

56%

65%

The diameter of rotary kiln in the manufacture of Portland cement is.

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1 to 2 feet

2 to 4 feet

4 to 8 feet

8 to 15 feet

Phosphorous helps the growth of

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root

leave

stem

seed

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

The percentage of clay and liem stone in cement is in the ratio of.

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1 : 1

1 :2

1:3

3:1

Which one is not an argillaceous material.

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Clay

Shale

State

Gypsum

The macro nutrients are required in ranging from

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5 kg to 200 kg

5 kg to 200 g

6g to 200 g

1 kg to 100 kg

Pulp is washed to remove lignin from it. Due to the presence of lignin in pulp paper becomes.

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Soft

Brittle

Acidic

Colourless

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