A. Are magnetised by eddy currents only
B. Are non-magnetic and cannot be magnetised
C. Are magnetised in direction opposite to the magnetic field
D. Can be magnetised in one direction only
A. Decrease in dislocation density
B. Increase in solutionising temperature
C. Increase in strength
D. Decrease in grain size
A. Temperature – entropy
B. Temperature – pressure
C. Enthalpy – entropy
D. Enthalpy-pressure
A. Manganese
B. Magnesium
C. Vanadium
D. Copper
A. Face centred
B. Simple cubic
C. Body centred
D. None of these
A. H2SO4
B. NaOH
C. NH3
D. HCl
A. Case carburising
B. Tempering
C. Normalising
D. Annealing
A. Less than the wet bulb temperature
B. More than the wet bulb temperature
C. Equal to the wet bulb temperature
D. Equal to the ambient temperature
A. H+ ions are absent
B. OH- ions are absent
C. Both H+ and OH- ions are present in very small but equal concentration
D. None of these
A. Annealing
B. Toughening
C. Work hardening
D. Tempering