Engineering Metallurgy - Mechanical Engineering (MCQ) questions and answers
Dear Readers, Welcome to Engineering Metallurgy multiple choice questions and answers with explanation. These objective type Engineering Metallurgy questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma.
Specially developed for the Mechanical Engineering freshers and professionals, these model questions are asked in the online technical test and interview of many companies.
These tutorial are also important for your viva in university exams like Anna university, Pune, VTU, UPTU, CUSAT etc.
1) The alloy of Ti + 5% Al, + 2.5 Sn has _______.
- Published on 11 Sep 15
a. low temperature stability
b. low strength
c. good corrosion
d. all of the above
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2) A bearing material should not possess the characteristic of high ______.
- Published on 11 Sep 15
a. coefficient of friction
b. hardness
c. melting point
d. thermal conductivity
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3) Inconol nickel alloy contains _________
- Published on 11 Sep 15
a. 75% Ni, 15% Cr and 9% Fe
b. 75% Ni, 15% Cr and 9% Al
c. 75% Ni, 15% Cr and 9% Mg
d. None of the above
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4) Which of the following cold working operations are suitable for α brass?
- Published on 11 Sep 15
a. Cold rolling
b. Deep drawing
c. Both a. and b.
d. None of the above
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5) The solubility of tin in copper above 580oC _______
- Published on 11 Sep 15
a. decreases
b. increases
c. remains constant
d. none of the above
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6) Why is gray cast iron annealed?
- Published on 11 Sep 15
a. Graphitize carbide
b. Decrease ductility
c. Both a. and b.
d. None of the above
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7) Which desulphurising agent is used to remove sulphur from iron during melting?
- Published on 11 Sep 15
a. Calcium carbide
b. Sodium carbonate
c. Soda ash
d. All of the above
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8) Rosettes of tempered carbon in the matrix of ferrite are observed in the microstructure of _____
- Published on 11 Sep 15
a. gray cast iron
b. spheroidal cast iron
c. malleable cast iron
d. none of the above
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9) Which of the following elements increase/s chilled depth for chilled cast irons?
- Published on 11 Sep 15
a. Silicon
b. Manganese
c. Manganese sulphide
d. All of the above
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10) What is the effect of increased carbon content on chilled cast iron?
- Published on 11 Sep 15
a. Chilling depth increases
b. Hardness of chilled zone increases
c. Both a. and b.
d. None of the above
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