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Engineering Materials

Engineering Materials
The hardness of steel increases if it contains

Martensite
Pearlite
Austenite
Cementite

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Engineering Materials
Which of the following property is desirable in parts subjected to shock and impact loads?

Brittleness
Strength
Toughness
Stiffness

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Engineering Materials
Age hardening is related to

Brass
Duralumin
Silver
Copper

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Engineering Materials
The purpose of heat treatment is to

Any one of these
Relieve the stresses set up in the material after hot or cold working
Change grain size
Modify the structure of the material

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Engineering Materials
Weld decay is the phenomenon found with

Stainless steel
Cast iron
Nonferrous materials
Mild steel

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Silver metal
Hastelloy
Invar
Duralumin

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