Ramming masses are used for____________________?

Related Mcqs:

In chemical process equipments, the conical bottom heads used, usually has an apex angle of____________________?

A. 20° B. 40° C. 60° D. 80°...

Silica refractories__________________?

A. crack when subjected to sudden change of temperature B. Cannot be used in the dome of hot blast stoves C. Have lower thermal conductivity than fireclay bricks D. All A., B. and C....

Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?

A. 1520 B. 1630 C. 1670 D. 1730...

Carbon refractories_____________________?

A. Do not burn/oxidise, when exposed to air on heating B. Are not attacked by slags, as they are not wetted by melts C. Do not resist temperature fluctuations D. Have extremely low thermal & electrical conductivities...

Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of________________?

A. Fireclay B. Silicon carbide C. Corundum D. Siliceous fireclay...