3857Chemical EngineeringMedium
Si percentage in silica refractories used in the walls of coke oven is about________?
A60
B80
C95
D45
Correct answer
C. 95
Explanation
The correct answer is 95.
Correct answer
C. 95
Explanation
The correct answer is 95.
Thermal diffusivity is given by________?
Buna-S is also called________?
Which of the following would not be a suitable material of construction for handling aqueous hydrofluoric acid (HF) at 100°C?
Acetaldehyde is shipped in ________ drums?
Preheating before welding is done to________?
Percentage of nitrogen in blast furnace gas may be around________?