A. Casting
B. Cold working
C. Forging
D. Welding
Related Mcqs:
- Wrought iron is not____________________?
A. Ductile & resistant to corrosion/rusting
B. Weldable easily
C. Having uniform strength in all directions
D. Having maximum tensile strength along the lines of slag distribution - Wrought iron does not have__________________?
A. Uniform strength in all directions
B. Ability to hold protective coating
C. High ductility & corrosion resistance
D. Easily weldable characteristics - Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of_________________?
A. Lumps
B. Pellets
C. Briquettes
D. Sinter - _____________________ of grey cast iron produces white cast iron?
A. Tempering
B. Rapid heating
C. Rapid cooling
D. Slow cooling - Annealing of white cast iron produces _____________________ iron?
A. Grey
B. Nodular
C. Malleable
D. Spheroidal - ______________________ iron is produced by the annealing of white cast iron?
A. Malleable
B. Nodular
C. Ductile
D. Grey - Iron content in Indian iron ore is about _________________ percent?
A. 80-85
B. 60-65
C. 40-45
D. 20-25 - ______________ wire is never used for making the heating element ?
A. Nichrome
B. Kanthal
C. Invar
D. None of these - For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation from surface 1 to surface 2 is given by__________________?
A. (ε1 + ε2)/ε1.ε2
B. ε1.ε2/(ε1 + ε2 – ε1.ε2)
C. ε1.ε2
D. ε1 + ε2 - ‘Ice point’ is designated on Fahrenheit temperature scale by__________________?
A. 0°
B. 32°
C. 62°
D. 212°
