Related Questions

Which of the following heat treatment processes is used for softening the hardened material?
A Normalising
B Tempering
C Annealing
D None of these
It is no secret that prison can be rather ———,; grim conditions and severe treatment have been known to —— even the most hardened criminals.-
A cruel ——— entertain
B harsh —— dishearten
C pleasant — encourage
D strange —— prevent
The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is
A Less than 0.1 percent
B Less than 0.3 percent
C More than 0.3 percent
D Anywhere between 0.1 to 1 percent
Hardened steel is softened by
A Normalising
B Tempering
C Annealing
D Carburising
A hardened steel essentially contains
A Sorbite
B Troostite
C Martensite
D None of these
To improve the machinability of steel by its softening, it is subjected to
A Cold working
B Annealing
C Shot blasting
D Heating
Softening of hardned steel is done by its
A Normalising
B Tempering
C Annealing
D Carburising
The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.
A Red
B Extended
C Super
D Extreme
Zeolite used in water softening process (cation exchange) is regenerated by washing with
A Brine
B Chloramines
C Sodium bisulphite
D Liquid chlorines
In vulcanisation process, rubber can be hardened by adding
A Nitrogen
B Silicon
C Sulphur
D Alcohol

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