Q. Addition of manganese to aluminium results in
✅ Correct Answer: (B)
improvement of corrosion resistance
Engineering Materials MCQs | Page - 1
Dear candidates you will find MCQ questions of Engineering Materials here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. Addition of lead and bismuth to aluminium results in
✅ Correct Answer: (D)
improving machinability
Q. Addition of copper to aluminium results in
✅ Correct Answer: (C)
one of the best known age and precipitation-hardening systems
Q. Acidic solution is one which has pH value
✅ Correct Answer: (B)
less than 7
Q. A specimen of aluminium metal when observed under microscope shows
✅ Correct Answer: (B)
F.C.C. crystal structure
Q. A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as
✅ Correct Answer: (A)
allotropic change
Q. A reversible change in the atomic structure of steel with corresponding change in the properties is known as
✅ Correct Answer: (C)
allotropic change
Q. A material is known as allotropic or polymorphic if it
✅ Correct Answer: (B)
exists in several crystal forms at different temperatures
Q. ‘Killed steels’ are those steels
✅ Correct Answer: (C)
which are deoxidised in the ladle with silicon and aluminium
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