A. carbon
B. sulphur
C. silicon
D. manganese
E. phosphorous
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
A. gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt
B. Mg, Zn, Ti, Zr, Br, Cd
C. a iron (below 910°C and between 1400 to 1539°C), W
D. all of the above
E. none of the above
A. hardening surface of workpiece to ob-tain hard and wear resistant surface
B. heating and cooling rapidly
C. increasing hardness throughout
D. inducing hardness by continuous process
E. hardening core
A. linear
B. non-linear
C. plastic
D. no fixed relationship
E. unpredictable behaviour
A. 770°C
B. 910°C
C. 1440°C
D. 1539°C
E. none of the above
A. in which atoms align themselves in a geometric pattern upon solidification
B. in which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid
C. which is not attacked by phosphorous
D. which emits fumes on melting
E. none of the above