A. Tin, antimony, copper
B. Tin and copper
C. Tin and lead
D. Lead and zinc
A. Hardening surface of workpiece to ob-tain hard and wear resistant surface
B. Heating and cooling rapidly
C. Increasing hardness throughout
D. Inducing hardness by continuous process
A. Mild steel
B. Cast iron
C. H.s.s.
D. High carbon
A. Nickel, chromium and iron
B. Nickel, copper
C. Nickel, chromium
D. Nickel, zinc
A. Silver and some impurities
B. Refined silver
C. Nickel, copper and zinc
D. Nickel and copper
A. Sulphur, lead, phosphorous
B. Silicon, aluminium, titanium
C. Vanadium, aluminium
D. Chromium, nickel
A. Aluminium, copper etc
B. Nickel, molybdenum etc
C. Nickel, copper, etc
D. All of the above
A. Nickel
B. Chromium
C. Tungsten
D. Vanadium
A. 0.025%
B. 0.26%
C. 0.8%
D. 1.25%
A. Flywheel of steam engine
B. Cast iron pipes”
C. Cycle chains
D. Gas turbine blades