A. Forging
B. Cold rolling
C. Hot rolling
D. Casting
Related Mcqs:
- Heat flow across a hollow sphere of inner radius ‘r1’ and outer radius ‘r2’ is directly proportional to__________________?
A. (r2 – r1)/r1. r2
B. r1. r2/(r2 – r1)
C. (r2 + r1)/r1. r2
D. r1. r2/(r2 + r1) - Production of a hollow product by inflation of a tube or parison is called the _______________ process?
A. Blow moulding
B. Calendaring
C. Extrusion
D. Injection - Stresses encountered in the metal forming processes are less than the _____________ of the material?
A. Fracture strength
B. Yield strength
C. Elastic limit
D. Limit of proportionality - ____________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength ?
A. Lancing
B. Shot peening
C. Slugging
D. Spinning - Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than ?
A. 5
B. 10
C. 20
D. 35 - If a solid is compressed adiabatically in its elastic range, its _____________ remains constant ?
A. Internal energy
B. Enthalpy
C. Entropy
D. Temperature - The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong _____________________?
A. Base and strong acid
B. Base and weak acid
C. Acid and weak base
D. None of these - Square steel key is normally strong in failure by shear & crushing. Keys are normally made of _______________ steel bars?
A. Hot rolled mild
B. Cold rolled mild
C. Forged
D. Machinable stainless - A semi-conductor is damaged & behaves like a conductor, on passing a strong electric current through it, because it heats up the crystals & breaks the covalent bonds resulting in _______________ electrons ?
A. Lack of free
B. Excess of
C. Decrease in
D. None of these - The usual energy consumption in electric arc furnace steel making is _____________ KWh/ton of steel ?
A. 60 – 100
B. 400 – 700
C. 1200 -1500
D. 2000 – 2300
