This GATE practice paper includes only material science questions. Inorder to get admission in IIT it is important you solve number of GATE question papers and previous year papers.
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Babbit metal is an alloy of
Sn,Cu, Sb and Pb
Sn and Cu
Sn,Cu and Sb
none of the above
Cu and Zn
In the design of which of the following creep plays important role ?
Boiler tubings
All of the above
I.C engine cylinder
Blading of Gas turbine
Blading of steam turbine
What does good impact strength indicates ?
Good fatigue behaviour
Good creep resistance
Good wear resistance
Good ductility
which of the following alloying elements help improve corrosion resistance of steels ?
malybdenum and chromium
Nickel and Chromium
Chromium and vanadium
Nickel and Molybdenum
Which of the following statements, regarding’physical properties of metals’ is in correct ?
Super conductivity is observed in the temperature range below 10 k
Most of the metals are hard except sodium and potassium
Most of the metals are non-malleable
All metals are solid except mercury
In steel, Pearlite phase is made up of alternate layers of
ferrite and cementite
ferrite and martensite
martensite and cementite
cementite and bainite
To which of the following is the proof stress related ?
Elongation
Necking
Fracture
Yielding
None of the above
Fibre reinforced metallic composites are NOT used for
resisting high temperature
resisting abrasion
providing high toughness
cutting metals
Hardness is a measure of which of the following ?
Fracture strength
Ultimate tensile strength
Yield strength
toughness
which of the following properties pertain to cast iron ?
Wear resistance
Ductility
Toughness
Resistance
Malleability
........... affect the fatigue strength least.
Magnitude of mean stress
Temperature
Frequency
Stress concentration
To which of the following, does the transmission temperature correspond ?
Maximum impact energy
NOne of the above
Minimum impact energy
Sharp change in impact energy
In which of the following, carbon content is highest ?
Mild steel
Hyper-eutectic steel
eutectic steel
Hypo-eutectic steel
with which of the following, age-hardening is related ?
German silver
cast iron
duralumin
gun metal
stainless steel
......... is not a consituent of alnico steel.
copper
aluminium
nickel
cobalt
What is the range of Moh’s scale ?
1 to 10
1 to 4
1 to 16
1 to 14
gold is ….... material.
dia-magnetic
para-magnetic
ferro-electric
ferro-magnetic
......... steel is widely used for rails of railway track.
mild
high carbon
tungsten
silicon
Manganese is alloyed with low carbon steels
to improve their machinability
none of above
to raise their tensile strength
to increase their corrosion resistance
to make them tough and hard
.......... copper free alloy
white metal
muntz metal
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