A. Martensitic
B. Bainitic
C. Carburised
D. Stressed
Related Mcqs:
- Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250- 525°C, thereby changing austenite to___________________?
A. Sorbite
B. Bainite
C. Martensite
D. Troostite - 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 - Tumbling is the process of improving the ________________ of the materials/parts ?
A. Surface finish
B. Fatigue limit
C. Creep limit
D. Surface cleanliness - 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 - Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel & copper having relatively higher melting points. Which of the following is not a hot dipping process ?
A. Galvanising
B. Tinning
C. Sherardizing
D. None of these - Batch process is preferred over continuous process, when the___________________?
A. Product yields and quality cannot be achieved in continuous process, because of long
residence time
B. Sales demand of product is not steady
C. Same equipment cannot be used for several processes of the same nature
D. All (A), B. & (C) - In the formation of cermets, the ratio of ceramic material to metallic material is usually 80:20. Which of the following is a cermet ?
A. Zirconia
B. Alumina
C. Bakelite
D. Tungsten carbide
