A. amount of carbon it contains
B. the shape and distribution of the car-bides in iron
C. method of fabrication
D. contents of alloying elements
E. the quality of ore from which it is made
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Related Mcqs:
- The hardness of steel primarily depends on _____________________?
- A. %age of carbon B. %age of alloying elements C. heat treatment employed D. method of manufacture E. shape of carbides and their distribution in iron...
- Depth of hardness of steel is increased by addition of_________________?
- A. nickel B. chromium C. tungsten D. vanadium E. ell of the above...
- The hardness of steel increases if it contains____________________?
- A. austenite B. martensite C. pearlite D. cementite E. all of the above...
- Steam engine operates on_________________?
- A. carnot cycle B. joule cycle C. Stirling cycle D. brayton cycle E. none of the above...
- Hardness of martensite is about___________________?
- A. RC 65 B. RC 48 C. RC 57 D. RC 80 E. RC 32...
- Hardness of lower bainite (tempered martensite) is about________________?
- A. RC 65 B. RC 48 C. RC 57 D. RC 80 E. RC 32...
- Hardness of upper bainite (acicular structure) is about___________________?
- A. RC 65 B. RC 48 C. RC 57 D. RC 80 E. RC 32....
- 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...
- Which of the following elements does not impart hardness to steel__________________?
- A. copper B. chromium C. nickel D. silicon E. none of the above...
- Mild steel belongs to the following category___________________?
- A. low carbon steel B. medium carbon steel C. high carbon steel D. alloy steel E. special steel...
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