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.Management Sciences
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
Related Mcqs:
- Isotropic materials are those which have the same ____________________?
- A. elastic properties in all directions B. stresses induced in all directions C. thermal properties in all directions D. electric and magnetic properties in all directions E. density throughout...
- Steel contains____________________?
- A. 80% or more iron B. 50% or more iron C. alloying elements like chromium, tungsten nickel and copper D. elements like phosphorus, sulphur and silicon in varying quantities E. high quantities of sulphur...
- The surface hardness of the following order is achieved by nitriding operation__________________?
- A. 600 VPN B. 1500 VPN C. 1000 to 1100 VPN D. 250 VPN E. 2000 VPN...
- Blast furnace produces following by reduction of iron ore_______________?
- A. cast iron B. pig iron C. wrought iron D. malleable iron E. white iron...
- Which of the following has highest specific strength of all structural materials__________________?
- A. magnesium alloys B. titanium alloys C. chromium alloys D. magnetic steel alloys E. none of the above...
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