Category: Materials and Construction

A. Cast iron
B. Chemical stoneware
C. Karbate
D. Mild steel

A. Normalising
B. Hardening
C. Annealing
D. Shot peening

A. Is the hardest metal in common use
B. Is the lightest metal in common use
C. Cannot be scratched by finger nails
D. Cannot be work hardened

A. Molybdenum stainless steel
B. Tin
C. Mild steel
D. Aluminium

A. Boiler plate steel
B. Rail steel
C. Saws for cutting steel
D. Railway spring steel

A. 0.1 to 0.35
B. 0.4 to 0.7
C. 0.8 to 1.5
D. 1.5 to 2

A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All A., B. & C.

A. Aluminium
B. Iron
C. Lead
D. Nickel

A. An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
B. Iron impregnated with resin (usually Bakelite)
C. Carbon free iron
D. None of these

A. Toughness
B. Wear resistance
C. Hardenability
D. Both B. & C.