Question # 1

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 %

What is the ratio of the maximum load in a tension test to the original cross sectional area of the test bar.

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Tensile strength

Yield strength

Shear strength

Torsion

LPG is use this

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Vehicles

Aviation Fuel

Home

All above

What is the colour of pulp obtained from chemical pulping.

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Black

Brown

Blue

Red

Not a Characteristic property of ceramic material

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High temperature stability

High mechanical strength

Low elongation

Low hardness

Cement containing higher percentage of gypsum than required.

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Sets slowly

Sets repidly

_{Does not set at all}

Has no effect

Natural gas can be transported through

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Cylinders

Pipes

Barriers

All of above

What is the lowest temperature diffusion hardening process and does not require a quench

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Carburizing

Tempering

Nitriding

Melting

Fats and oil are_____________

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Acids

Alcohols

Salts

Base

Alnico is an alloy containing how many percent nickel.

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10%

14%

18%

22%

Fertilizers are classified into

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Two major categories

Three major categories

Four major categories

None of above

Ammonium nitrate is sold as a mixture with

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Soda Ash

Lime stone

Zinc

None of above

Which one of the following set of raw material is most suitable for manufacture of urea.

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CH4N2 and CO2

H2CO2 and H2O

H2O N2 and H2

H2O N2 AND KCl

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

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Anionic

Cationic

Nonionic

Neutral

_________ is preferred for horticultural crops and for tobacco and potatoes.

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Potassium Chloride

Potassium Sulphate

Potassium NItrate

None of these

The nitrogen present in some fertilizers helps plants.

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To fight against diseases

To undergo photosynthesis

To produce protein

What element constitutes the major component of most bronzes.

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Tin

Zinc

Carbon

Aluminum

What refers to the application of any process whereby the surface of steel is altered so that it will become hard.

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Caburizing

Case harden zing

Ammealing

Surface hardening

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

PCRA stand for

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Pollution control research association

Petroleum conversation Research association

Petroleum control research association

All of above

Manganese steel usually contains how many percent of manganese.

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1 to 5

3 to 10

11 to 14

14 to 18

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