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Engineering Materials

Engineering Materials
Cemented carbide tools are not found to be suitable for cutting

Cast iron
Aluminium
Steel
Brass

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Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Mainly pearlite
Mainly ferrite
Ferrite and pearlite
Pearlite and cementite

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Engineering Materials
Which of the following is not the correct method of increasing fatigue limit?

Surface decarburisation
Nitriding of surface
Shot peening
Cold working

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Engineering Materials
In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled

Slowly in the furnace
Any one of these
Suddenly in a suitable cooling medium
In still air

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Engineering Materials
Mild steel belongs to the following category

Medium carbon steel
Low carbon steel
High carbon steel
Alloy steel

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Engineering Materials
Pig iron is the name given to

Iron in molten form in the ladles
Raw material for blast furnace
Iron containing huge quantities of carbon
Product of blast furnace made by reduction of iron ore

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