A. Suppresses the decomposition of Fe3C
B. Increases the formation of graphite
C. Increases the contraction of the metal
D. Reduces its fluidity
A. Harden the surface
B. Increase its glossiness and lustre
C. Prevent the action of water
D. Prevent the action of oxygen
A. Eutectic
B. Recrystallisation
C. Upper critical
D. Lower critical
A. Invar
B. Constantan
C. Chromel
D. Alumel
A. Steel
B. Cast iron
C. Brass
D. Gun metal
A. Stainless steel
B. Cast iron
C. Mild steel
D. Monel
A. Moving mercury and graphite
B. Graphite and moving mercury
C. Moving mercury and carbon
D. Moving mercury and crimped steel wire
A. 16-13% Cr 10-14% Ni and 2-3% Mo
B. 20-22% Cr, and 8-10% Ni
C. 2-4% Cr, 22% NI and 2-4% Mo
D. None of these
A. Harder
B. Protected from rusting
C. Alumina coated iron
D. None of these
A. Sherardizing
B. Parkerising
C. Anodising
D. None of these