Materials and Construction

A. Boron
B. Antimony
C. Gallium
D. None of these

A. Ultimate
B. Yield point
C. Proof
D. None of these

A. 2
B. 4
C. 6
D. 8

A. Produced by adding 10-20% steel to the cupola charge
B. Stronger than cast iron
C. Both A. and B.
D. Neither A. nor B.

A. Aluminium
B. Noble metals (Ag, Pt, Au)
C. Zinc
D. Alkali metals (K, Na, Li)

A. Have lower corrosion resistance
B. Are harder to fabricate
C. Are less ductile and hence less suitable for cold pressing
D. All A., B. and C.

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

A. White cast
B. Grey cast
C. Wrought
D. None of these

A. Acidic refractory
B. Rubber
C. Karbate
D. Lead or acid-proof bricks

A. 3.8
B. 5.2
C. 4.8
D. 4.3