Lead is poured into the joint between two _______________ pipes ?

A. Low temperature of
B. High temperature of
C. High % of CO in
D. High % of CO2 in

A. Mercury
B. Sodium
C. Calcium
D. Magnesium

A. Aluminium
B. Tin
C. Lead
D. Both B. & C.

A. Low vapour pressure
B. Corrosive nature
C. High vapour pressure
D. High boiling point

A. Boiler
B. Condenser
C. Evaporator
D. All A. B. & C.