Question # 1

Hydrolytic reaction of fat with caustic soda is known as ______

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Esterification

Saponification

Acetylation

Carboxylation

Rotary spinning process is used to produce

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Glass wool

Optical fibre

Glass marble

None of above

What corrosion occurs under organic coating on metals as fine wavy hairlines?

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Stray current corrosion

Microbiological corrosion

Filiform corrosion

Simple corrosion

The number of Glass products now manufactured is.

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25,000

75,000

50,000

All of these

What is a measure of rigidity?

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Stiffiness

Jardmess

Strength

Modulus of elasticity

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

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Tempering

Picking

Machining

Sizing

The alkaline hydrolysis of fat is know as

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Condensation

Esterification

Saponification

Emulsification

What refers to a shape achieved by allowing a liquid to solidify in a mold.

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Casting

Molding

Forming

All of the choices

Potassium sulphate with 48% to 52% potash, is made from.

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Potassium phosphate

Potassium Chloride

Potassium Nitrate

None of these

What refers to the tin mill steel, without a coating.

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White plate

Black plate

Tin steel free

Dichromate tin

What combination of elements has high electrical resistance high corrosion resistance, and high strength at red hear temperatures, making it useful in resistance heating.

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Aluminium bronze

Nichrome

Hastelloy

None of above

In a system of designating wrought aluminum alloys. what does the second digit represents.

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The purity of aluminum

The identity of the alloy

The modification of the alloy group or impurity limits

None of above

Chemical compounds which are added to reduce to reactivity of glass are called.

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Formers

Modifiers

Stabilizers

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 raw material not present on the cement.

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Lime stone

Gypsum

Red lead

Blast furnace slag

What is the most undesirable of all the elements commonly found in steels.

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Sulphur

Phosphorus

Silocn

Magnesium

In which paper some additive is not added.

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Carbon paper

Filter paper

Glazed paper

Art paper

Fertilizers are classified into

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Two major categories

Three major categories

Four major categories

None of above

The percentage of nitrogen in ammonia is _______________%

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32

82

25

55

The liquor is screened to exclude ________ material

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Fibrous

Polymers

Maltose

Sucrose

___________ surfactants perform well over a wide range of water hardness and pH.

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Anionic

Cationic

Nonionic

Neutral

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