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Mechanical Engineering - Engineering Materials

Exercise : Engineering Materials - Section 4
21.
Macro-structure of a material is, generally, examined by
naked eye
optical microscope
metallurgical microscope
X-ray techniques
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Aluminium has low density and addition of silicon improves its fluidity and therefore, its castability.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Which of the following property is desirable for materials used in tools and machines?
Elasticity
Plasticity
Ductility
Malleability
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Babbit metal is a
lead-base alloy
copper-base alloy
tin-base alloy
cadmium-base alloy
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The metal suitable for bearings subjected to heavy loads, is
silicon bronze
white metal
monel metal
phosphor bronze
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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