Question: Cast iron is a __________ material.
[A].brittle
ductile
tough
malleable
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A material is able to retain the deformation permanently by virtue of its
Question: A material is able to retain the deformation permanently by virtue of its
[A].elasticity
plasticity
ductility
malleability
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages
Question: As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages
[A].increase
decrease
remain unchanged
can either increase or decrease, depends on the system
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A material is called ‘ductile’, if it can be
Question: A material is called ‘ductile’, if it can be
[A].drawn into wires.
hammered to a thin sheet.
fractured without deformation.
made lustrous by heating it.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Manganese in steel affects its
Question: Manganese in steel affects its
[A].ductility
tensile strength
hardness
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Nickel and molybdenum are the basic constituents of
Question: Nickel and molybdenum are the basic constituents of
[A].hastealloy
German silver
inconel
solder
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Nickel and copper are the basic constituents of
Question: Nickel and copper are the basic constituents of
[A].hastelloy
monel metal
German silver
inconel
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A chemical change takes place when iron
Question: A chemical change takes place when iron
[A].rusts
melts
is heated
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of
Question: Corrosion resisting properties of cast iron are significantly improved by the addition of 12 – 15% of
[A].tungsten
vanadium
silicon
all (a), (b) & (c)
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Cementite is
Question: Cementite is
[A].Fe3C chemically.
a compound of carbon and iron.
characterised by an orthorhombic crystal structure.
all (a), (b) and (c).
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.