Monel metal consists of
A.Nickel, lead and tin
B.Zinc, copper and lead
C.Zinc nickel and copper
D.Aluminium copper and nickel
Category: Engineering Materials Mcqs
Malleal lity of a material is defined as
A.Ability to withstand compressive stresses
B.Ability to withstand deformation under shear
C.Ability to undergo large permanent deformation in compression
D.The property by which a material can be cold worked
E.None of the above
Sorbite’ is obtained when
A.Quenching steel during transformation
B.Steel is annealed
C.A fully hardened steel is finally ‘drawn’ at about 677?C
D.None of the above
Corrosion resistance of steels is increased by the addition of alloying elements like
A.Sulphur
B.Silicon and sulphur
C.Chromium and nickel
D.Cobalt and vanadium
E.Tungsten
Which of the following is not the characteristic property of aluminium?
A.Lightness
B.Good electrical conductivity
C.High thermal conductivity
D.Resistance to corrosion
E.Lest affinity for oxygen
The maximum hardenability of any steel depends on
A.The carbon content
B.The chemical composition
C.The grain size
D.The alloying elements present
E.None of the above
The effect f rolling on steel is
A.To elongate the inclusions in the direction of rolling giving the steel excellent properties
B.Reduction in tensile strength
C.Reduction in fatigue strength
D.Reduction in hardness
E.None of the above
Polymers
A.Can be vaporised as well as recycled
B.Can neither be vaporised nor recycled
C.Can be vaporised but cannot be recycled
D.Can be recycled but cannot be vaporised
Machining properties of brass can be improved by the addition of
A.Aluminium Copper alloy
B.Lead
C.Carbon
D.Zinc
E.Chromium
X-rays cannot penetrate through
A.Copper
B.Lead
C.Wood
D.Paper
E.Brass
