A hydraulic coupling belongs to the category of

Question: In spheroidising process, the steel is
[A].

heated below the lower critical temperature and then cooled slowly

[B].

heated upto the lower critical temperature and then cooled in still air

[C].

heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C

[D].

none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Question: The blade of a power saw is made of
[A].

boron steel

[B].

high speed steel

[C].

stainless steel

[D].

malleable cast iron

Answer: Option B

Explanation:

No answer description available for this question.