Question # 1

What cast iron has modular or spheroidal graphite?

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Ductile iron

Gray iron

White iron

Raw iron

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

In a system of designating wrought aluminum alloys a sour digit number is used what does the first digit indicate.

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The purity of aluminum

The identity of the alloy

The alloy group

All of above

Rotary spinning process is used to produce

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Glass wool

Optical fibre

Glass marble

None of above

LPG is use this

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Vehicles

Aviation Fuel

Home

All above

What group of steels are molybdenum high sped steels.

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Group A

Group D

Group M

Group H

A steel cannot qualify for stainless prefix until it has at least how many percent of chromium.

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10 %

20 %

5 %

30 %

Granulated sugar also known as.

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Brown sugar

Refined sugar

White sugar

None of these

The by -product of the process of saponification is.

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Methanol

Glycol

Glycerol

Absolute alcohol

Petroleum is formed from

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Domestic animal

Organisms in sea

Wild animals

All above

Which of the following is NOT a hardware requirement for die casting.

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Water cooled metal cavities

Machined metal holding blocks

Ejection mechanism

Metal mold

What is use of the addition of brine solution in the production of soap from castor oil and sodium hydroxide.

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To speed up the reaction

To lower the solubility of soap

To remove unreacted castor oil and sodium hydroxide

To increase the purity of the soap obtained.

What is the effect of manganese in cast iron.

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^{To affect the machinability ductility and shrinkage depending on form}

To reduce hardness by combining with sulfur below 0.5% and increase hardness above 0.55

To dioxide molten cast iron

Have no effect

Which substance is used as filler or additive in paper making.

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Starch

Glucose

Cellulose

Maltose

The chrome vanadium steels contain how many percent of vanadium.

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0.15 to 0.30

0.05 to 0.15

0.30 to 0.45

0.45 to 0.60

Which of the following give higher fibre strength.

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Eucalyptus

Pine

Bagnasse

Sugar cane

The different types of glass are.

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A- glass, C-Glass, E-Glass and S-Glass

A-Glass, B-Glass, E-Glass, S-Glass

AR -Glass, C-Glass, E-Glass and S -Glass

A-B Glass

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

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E

B

X

F

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