Cement setting under water employs a/an _______________ process ?

Related Mcqs:

Styrene (a monomer for the production of polystyrene) is commercially produced by ____________________?

A. Catalytic dehydrogenation of ethyl benzene B. Dehydration of ethyl alcohol followed by hydrogenation C. Reacting ethylene oxide with acetaldehyde D. Fermentation of starch...

Carbon disulphide is mainly used in the production of______________________?

A. Viscose rayon B. Corundum C. Plasticiser for unsaturated polyester D. Paints...

Industrial production of chloroform requires acetone and_____________________?

A. Phosgene B. Calcium hypochlorite C. Chlorine D. Ammonium chloride...

Presence of H2S in raw water (to be chlorinated) results in the_____________________?

A. Reduced softening capacity of zeolite B. Increased dosage of chlorine to provide a disinfecting residual in the water C. Easy removal of its hardness D. None of these...

In sulphate pulp manufacture, the pressure and temperature in the digestor is____________________?

A. 10 atm., 800 °C B. 10 atm., 170-180°C C. 1 atm., 170 – 180°C D. 1 atm., 800°C...