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Mechanical Behaviour Testing Materials
Mechanical Behaviour Interview
Quiz 1
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Q.1
Mechanical properties of single phase alloys cannot be improved by ____________
a) Cold working
b) Thermomechanical treatment
c) Heat treatment
d) Grain refining
Q.2
Second phase present as a continuous network at grain boundaries, gives ___________
a) Ductility
b) Toughness
c) Brittleness
d) Corrosion resistance
Q.3
Which microstructure possesses the best combination of ductility and toughness?
a) Second phase along grain boundaries
b) Second phase at grain boundaries
c) Second phase within the matrix
d) Second phase uniformly distributed throughout matrix
Q.4
Which shape of second phase particles is preferred?
a) Flakes
b) Nodules
c) Spheroids
d) Plates
Q.5
Single phase alloys have better _____ properties than their respective pure metals.
a) Electrical
b) Thermal
c) Mechanical
d) Formability
Q.6
Which property deteriorates with a decrease in grain size?
a) Ductility
b) Tensile strength
c) Fatigue
d) Creep
Q.7
Which property is measured to decide the density of point defects?
a) Electrical resistivity
b) Fatigue strength
c) Malleability
d) Toughness
Q.8
Which one is structure sensitive property?
a) Melting point
b) Density
c) Specific heat
d) Ductility
Q.9
Which one is structure insensitive property?
a) Fracture strength
b) Yield strength
c) Elastic modulus
d) Electrical conductivity
Q.10
Finer the spheroid second phase particles, better are the mechanical properties.
a) True
b) False
Q.11
At elevated temperatures, single phase materials are preferred.
a) True
b) False
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