Question # 1

What prefix in steel identification means composition varies from normal limits.

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E

B

X

F

Low quality steels with an M. Suffix on the designation intended for non structural application is classified as.

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Merchant quality

Commercial quality

Drawing quality

Low quality

The nutrients which are required in very small amount for the normal growth of plants are called.

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Nitrogenous fertilizers

Micronutrients

Phosphorus fertilizer

All of the above

Fats and oil are_____________

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Acids

Alcohols

Salts

Base

__________ is used for fruits, vegetables and tobacco

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Potassium Chloride

Potassium Sulphate

Potassium nitraite

All above

Calander stock is a process in paper making in which.

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Thickness of the paper is reduced

Surface of paper is made smooth

Moisture is removed

Both A and B

Commercial detergents contain mainly ___________

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RCOON

RONa

RSNa

All above

What is defined as a local corrosion damaged characterized by surface cavities.

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Cracking

Pitting

Cavitation

Corrosion

The following ceramic product is mostly used as pigment in paints.

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TiO2

SiO2

uo2

ZrO2

The chrome molybdenum steels contain how many percent of molybdenum

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0.10

0.20

0.30

0.40

Granulated sugar containing._____________

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Glucose

Fructose

Maltose

Sucrose

What refer to the casehardening process by which the carbon content of the steel ear the surface of a part is increased?

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Carburizing

Annealing

Normalizing

None of these

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

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Anionic

Cationic

Nonionic

Neutral

The following alloys are the chief alloys that are die cast except.

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Zinc alloys

Magnesium alloys

Manganese alloys

Nickel alloys

Not a major contributor of engineering ceramics

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SiC

SiO2

Si3N4

BH3

What is a measure of rigidity?

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Stiffiness

Jardmess

Strength

Modulus of elasticity

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

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Silicon

Aluminium

Beryllium

Copper

What element constitutes the major component of most bronzes.

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Tin

Zinc

Carbon

Aluminum

The main constituents of ___________ are boron oxide and silica.

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Pyrex glass

Low silica glass

Soda lime glass

Super hard glass

Soapy detergents and soapless detergents behave differently in hard water because they

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Have different hydrophilic heads

Have different hydrophobic hydrocarbon chains

Have different pH values

Above A and C both

Which sequence of steps is correct in paper making machine

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Pressing Dyring, Flow spreader Calender stock

Flow spreader, Pressing, Prying Calender sock

Drying ,Pressing , Flow spreader, Calender stock

None of above

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