What happens, when SO2 is passed through a solution of H2S in water ?

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The most detrimental impurity in high pressure boiler feed water is ___________________?

A. Suspended salt B. Dissolved salt C. Silica D. Turbidity...

A dummy activity is used in PERT network to describe the_____________________?

A. Precedence relationship B. Resource idleness C. Resource restriction D. Necessary time delay...

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

A. Time B. Square root of time C. Square of time D. Cube of time...

Thermal efficiency of an internal combustion engine is around ______________ percent?

A. 8 B. 35 C. 65 D. 80...

The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased ___________________ times ?

A. Two B. Four C. Six D. Eight...