A. Surface finish
B. Fatigue limit
C. Creep limit
D. Surface cleanliness
Related Mcqs:
- The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ‘Curie temperature’. Its value for cobalt is ______________ °C?
A. 768
B. 1127
C. 1359
D. 1480 - Addition of _______________ to steel does not help in improving its machinability ?
A. Sulphur
B. Silicon
C. Lead
D. Phosphorous - Addition of ____________________ to steel does not help in improving its machinability?
A. Sulphur
B. Silicon
C. Lead
D. Phosphorous - Materials having ________________ lattice structure are usually the most ductile ?
A. Body centred cubic (bcc)
B. Hexagonal close packed (hcp)
C. Face centred cubic (fcc)
D. None of these - Austempering process results in the formation of ________________ structure ?
A. Martensitic
B. Bainitic
C. Carburised
D. Stressed - Spheroidising of a material is a/an ________________ process?
A. Normalising
B. Annealing
C. Tempering
D. Hardening - In ________________ process, there is an increase in entropy with no degradation of energy ?
A. Isothermal expansion
B. Isochoric heat addition
C. Polytropic expansion
D. Isobaric heat addition - Removal of non-condensable from steam or other vapour is termed as the ________________ process?
A. Condensation
B. Deaeration
C. Scavenging
D. Exhaust - Cold heading or upsetting is categorised as the ________________ process ?
A. Extrusion
B. Bending
C. Rolling
D. Forging - High endurance limit of carburised machine parts is because of the fact that carburisation __________________?
A. Suppresses any stress concentration produced in the parts
B. Enhances the yield point of the material
C. Introduces a compressive layer on the surface
D. Produces a better surface finish
