A. Refine coarse grain structure obtained during hot working
B. Improve ductility
C. Improve yield strength
D. Improve mechanical properties
Related Mcqs:
- Normalising of a casting does not__________________?
A. Induce stresses in it
B. Refine its grain structure
C. Reduce segregation
D. Improve its mechanical properties - A 2 kg object weighs 1.8 kgf on a spring balance. The value of ‘g’ at that location in m/sec2 is___________________?
A. 8.82
B. 9.81
C. 10.88
D. 0.95 - Presence of nickel & chromium in steel does not raise its _________________?
A. Elastic limit
B. Machining properties
C. Ductility
D. Resilience - Addition of _____________________ to steel does not impart hardness?
A. Nickel
B. Copper
C. Chromium
D. Silicon - Powder metallurgy process does not make metal powder by_________________________?
A. Atomisation
B. Grinding/milling
C. Hammering
D. Electrolytic deposition - Which of the following does not have a sharp melting point ?
A. Thoria
B. Glass
C. Ice
D. Pig iron - The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the_________________?
A. Pipe roughness & pipe diameter
B. Fluid velocity
C. Type of flowing fluid
D. Both B. & C. - 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 - Tempering of a material does not improve its____________________?
A. Machinability
B. Toughness
C. Internal stress level
D. Softness - Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother ?
A. Cresylic acid
B. Xanthaies
C. Pine oil
D. All A, B. & C.
