Question # 1

What field of study encompasses procurement and production of metals.

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Metallurgy

Geology

Material science

Metalgraphy

Indicate the false statement about corrosion.

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Plastics and ceramics are immune to many forms of corrosion because they are not good conduction of electricity.

The corroded member in a corrosion cell is the cathode

Passivity is a prerequisite for the corrosion protect on many metals

None of these

In glass making the whole combination of ingredients is called a.

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Gangue

Batch

Mixture

None of these

__________ is used for fruits, vegetables and tobacco

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Potassium Chloride

Potassium Sulphate

Potassium nitraite

All above

The cooling of molten urea by air in the tower is called.

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Prilling

Evaporation

Condensation

Distillation

What ASTM test for tension is designated for plastics.

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A 370

D 638

E 292

None of these

Turpentine is obtained from._______________

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Oak tree

Pine tree

Birch tree

Lemon tree

Refining is

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Extracting petroleum gas

Separation of various fraction

Heating of coal

All of above

Which of the following is a component of soap.

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Sodium sulphate

Sodium stearate

Sodium chloride

Sodium bromide

Polyethylene Glycols are used in the preparation of which tye of detergetns.

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Cationic detergents

Anionic detergents

Non ionic detergent soaps

None of above

What element is added to copper to increase its strength and fatigue propertioes.

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Silicon

Aluminium

Beryllium

Copper

Glass was first made by about________

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40 BC

400 BC

4000 BC

100 BC

Which cast iron is hard and wear resistant.

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Grey iron

White iron

Melleable iron

None of these

Galvanized steel are steel products coated with

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Carbon

Sulphur

Zinc

Iron

What is a method of casehardening involving diffusion in which the steel to be casehardened is machined, heat treated placed in an air tight box and heated to about 1000 ^oF

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Annealing

Normalizing

Carburizing

Decomposition

Petroleum is mixture of

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Petrol

Diesal

Petroleum

All of these

Which of the following statements is NOT true .

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About 10% of the earth's crust is iron

Pure iron does not have significant industrial use because it is too weak and soft.

Steel in an alloy of carbon and iron with limits on the amount of carbon

None of above

in the process of production of soap the soap can be salted out by adding

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Concentrated sulphuric acid

Concentrated potassium hydroxide solution

Concentrated sodium chloride solution

None of above

Which substances is not used as an additive in paper industry.

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Glucose

Starch

Alum

None of these

Which of the following is raw material not present on the cement.

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Lime stone

Gypsum

Red lead

Blast furnace slag

What is a coal that has been previously burned in an oxygen poor environment?

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Tuyere

Coke

Silver

Diamond

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