Spheroidising of a material is a/an ________________ process?
Spheroidising of a material is a/an ________________ process?
A. Normalising
B. Annealing
C. Tempering
D. Hardening
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_________________ is not a heat treatment process ?
_________________ is not a heat treatment process ?A. Cyaniding
B. Parkerizing
C. Austempering
D. MartemperingGrey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
Question: Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher
[A].ductility [B].
impact strength [C].
machinability [D].
melting point Answer: Option C
Explanation:
No answer description available for this question.
Increasing the carbon content of steel
Question: Increasing the carbon content of steel
[A].reduces the upper shelf energy. [B].
increasing the ductility transition temperature. [C].
decreases brittleness. [D].
decreases hardness. Answer: Option B
Explanation:
No answer description available for this question.
What is the range of tempering temperature (°C) for most of the materials ?
What is the range of tempering temperature (°C) for most of the materials ?A. 75-100
B. 200-300
C. 350-450
D. 500-600Lubrication is done to control
Question: Lubrication is done to control
[A].friction [B].
wear [C].
temperature [D].
all (a), (b) & (c) Answer: Option D
Explanation:
No answer description available for this question.
The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?
The minimum carbon content in steel should be ____________________ percent for it to respond to a hardening treatment ?A. 0.2
B. 0.4
C. 0.6
D. 0.8