Question: Damage to metal surface by mechanical action is called
[A].pitting
corrosion
erosion
none of these
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
CHEMICAL ENGINEERING
Out of the following, the dimensionless quantity is
Question: Out of the following, the dimensionless quantity is
[A].specific weight
viscosity
Mach number
density
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
__________ is the most important element, which controls the physical properties of steel.
Question: __________ is the most important element, which controls the physical properties of steel.
[A].Manganese
Silicon
Carbon
Vanadium
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Austenite is not
Question: Austenite is not
[A].ductile
malleable
magnetic
soft
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
For the running of power generating turbines, the steam used should be
Question: For the running of power generating turbines, the steam used should be
[A].wet
superheated
at ordinary pressure
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Closeness of packing is maximum in case of __________ crystal lattice.
Question: Closeness of packing is maximum in case of __________ crystal lattice.
[A].face centred
simple cubic
body centred
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Heat treatment of steel is done mainly to change its
Question: Heat treatment of steel is done mainly to change its
[A].mechanical properties.
physical properties,
chemical composition.
all ‘a’, ‘b’ & ‘c’.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Eutectoid composition of carbon steel at room temperature is
Question: Eutectoid composition of carbon steel at room temperature is
[A].cementite
pearlite
martensite
ferrite
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Overheating of satellites during re-entry to earth is controlled by
Question: Overheating of satellites during re-entry to earth is controlled by
[A].thick insulation.
ceramic lining.
cooling by flow of air over the surface.
none of these.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Cold chiesel & hammers are made of
Question: Cold chiesel & hammers are made of
[A].high speed steel
high carbon steel
forged steel
mild steel
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.