Materials and Construction
Bog iron used for the adsorption of H?S from coke oven gas is

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

ANSWER DOWNLOAD EXAMIANS APP

Materials and Construction
Mild steel is

A low carbon steel (0.05 to 0.3% carbon)
Highly resistant to corrosion (as much as stainless steel)
A high carbon steel (0.5 to 1.5% carbon)
Very poor in strength & ductility

ANSWER DOWNLOAD EXAMIANS APP