1000+ Basic Mechanical Engineering Questions and Answers - 1
Question: 1
Cast irons are generally specified by
(A) tensile strength
(B) carbon percentage
(C) hardness
(D) iron percentage
Ans: A
tensile strength
Question: 2
The limiting load beyond which the material no longer behaves elastically is known as
(A) breaking load
(B) elastic limit
(C) limiting load
(D) load bearing capacity
Ans: B
elastic limit
Question: 3
The amount of cold work that a metal will stand is dependent upon
(A) purity of metal
(B) process
(C) room temperature
(D) carbon percentage
Ans: A
purity of metal
Question: 4
Steel may be manufactured by
(A) duplex process
(B) cementation process
(C) open hearth process
(D) bessemer process
Ans: C
open hearth process
Question: 5
Which of the following material has lowest specific gravity?
(A) aluminium
(B) brass
(C) copper
(D) high carbon steel
Ans: A
aluminium
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