Question # 1

Which three elements are needed for the healthy growth of plants

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N,S,P

N,Ca,P

N,P,K

N,K,C

Which one of the following is the macronutrient for plants.

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Boron

Zinc

Calcium

Nitrogen

During the manufacturing process of cement the temperature of the decomposition zone goes up to

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600°C

800°C

1000°C

1200°C

Ammonia is prepared industrially by

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Contact process

Ostwald process

Birkland Eyed process

Heber process

How many zones through which the charge passes in a rotary kiln

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4

3

2

5

Usually the percentage of moisture is paper is

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1- 3%

4-6%

6-8%

5%

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

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Rose

Sun flower

Papyrus

Water Hyacinth

Which one of the following set of raw material is most suitable for manufacture of urea.

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CH4, N2 and CO2

H2, N2 and CO

H2,CO2 and H2O

H2O, N2 and H2

Potassium fertilizers are especially useful for

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Tobacco

Coffee

Potato

All of these

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

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