Question # 1

Iron is said to be abundant in nature. About how many percent of the earth’s crust is iron.

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10%

5%

20%

8%

The juice is allowed to boil at lower temperatures to protect the sugar from

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Hardening

Solubility in water

Caramelization

Dwatering

What element is added to copper to make it extremely hard.

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Aluminum

Zinc

Lead

Tin

Glass was first made by about________

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40 BC

400 BC

4000 BC

100 BC

What ASTM test for shear strength is designated for plastics.

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D 732

D 790

D 695

D 638

The green color of water in a lake is due to

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Excessive growth of sea weeds

Algae

Pollution

Grass

The substance added to the soil to provide one or more nutrient elements essential for plants growth are called.

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Growth hormones

Fertilizers

Salts

Minerals

What is a process for making glass reinforced shapes that can be general by polling resin impregnated glass stands though a die.

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Continuous pultrusion

Bulk molding

Vacuum bag forming

Computational analysis

Natural fertilizers are materials derived from

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Plants

Animal

Algae

All of above

Natural gas can be transported through

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Cylinders

Pipes

Barriers

All of above

What refers to the removal of zinc from brasses?

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Dezincification

Graphitization

Stabilization

Denitration

What ASTM test for tension is designated for plastics.

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A 370

D 638

E 292

None of these

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

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It dry the paper

It reduces thickness of paper

It makes the surface of paper smooth

It discharge the pulp at the screen of fourdrinier table

Which of the following is not adsorptive separation process.

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Parex

Olex

Penex

None of these

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

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Gangue

Batch

Mixture

None of these

Silicon bronze contains how many percent of silicon.

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96%

3%

1 %

69 %

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

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Glucose

Starch

Alum

None of these

In the process of preparation of detergents the organic acids produced are neutralized with.

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Sodium hydroxide

Sodium sulphate

Sodium chloride

Potassium hydroxide

Glass industry requires soda ash with

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Solids density 1.91 and bulk density 1.0

Solids density 1.86 and bulk density 0.6

Solid density 1.80 and bulk density 0.58

All of above

What is the scaling off of a surface in flakes or layers as the result of corrosion?

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Expoliation

Corrosion fatigue

Scaping

Fretting

The use of acids to remove oxides and acids on hot worked steels is known as

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Tempering

Picking

Machining

Sizing

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