Question 46
Refractories chemically and physically stable at
Question 47
Arrange for testing at either an independent laboratory or the manufacturer's plant is
Question 48
The vessel in which coke and residual hydrocarbons are burned off the catalyst and the flue gas is then separated from the catalyst is called
Question 49
Packing of chemical setting refractories should have mechanical protection by
Question 50
When is metal fiber reinforcement used in castable refractory?
