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Materials and Construction

Materials and Construction
Polymorphism is not exhibited by

Carbon
None of these
Phosphorous
Iron

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Materials and Construction
Cast iron compared to steel is better in

Strength
Fluidity & castability
Ductility
Malleability

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Materials and Construction
__________ steel is widely used for the manufacture of motor car crankshafts.

Nickel
Chrome
Silicon
High speed

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Materials and Construction
Carbon percentage in medium carbon steel is around

0.35 to 0.5
1 to 1. 5
0.8 to 1.4
0.1 to 0.35

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Materials and Construction
__________ is used for examining the macro-structure of a material.

Visual inspection by naked eye
X-rays
Optical microscope
Metallurgical microscope

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Materials and Construction
Most common stainless steel type 316, which is highly resistant to corrosion contains

2-4% Cr, 22% NI and 2-4% Mo
16-13% Cr 10-14% Ni and 2-3% Mo
None of these
20-22% Cr, and 8-10% Ni

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