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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.

M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 1) Addition of manganese to aluminium results in

(A) improvement of casting characteristics
(B) improvement of corrosion resistance
(C) one of the best known age and precipitation-hardening systems
(D) improving machinability
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 2) Addition of lead and bismuth to aluminium results in

(A) improvement of casting characteristics
(B) improvement of corrosion resistance
(C) one of the best known age and precipitation-hardening systems
(D) improving machinability
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 3) Addition of copper to aluminium results in

(A) improvement of casting characteristics
(B) improvement of corrosion resistance
(C) one of the best known age and precipitation-hardening systems
(D) improving machinability
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 4) Acidic solution is one which has pH value

(A) greater than 7
(B) less than 7
(C) equal to 7
(D) pH value has nothing to do with neutral solution
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 5) A specimen of aluminium metal when observed under microscope shows

(A) B.C.C. crystalline structure
(B) F.C.C. crystal structure
(C) H.C.P. structure
(D) a complex cubic structure
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 6) A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

(A) allotropic change
(B) recrystallisation
(C) heat treatment
(D) precipitation
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 7) A reversible change in the atomic structure of steel with corresponding change in the properties is known as

(A) molecular change
(B) physical change
(C) allotropic change
(D) solidus change
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 8) A material is known as allotropic or polymorphic if it

(A) has a fixed structure under all conditions
(B) exists in several crystal forms at different temperatures
(C) responds to heat treatment
(D) has its atoms distributed in a random pattern
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 9) A cold chisel is made of

(A) mild steel
(B) cast iron
(C) H.S.S.
(D) high carbon
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M

Manisha Agrawal • 9.32K Points
Tutor III

Q. 10) ‘Killed steels’ are those steels

(A) which are destroyed by burning
(B) which after their destruction are recycled to produce fresh steel
(C) which are deoxidised in the ladle with silicon and aluminium
(D) in which carbon is completely burnt
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