Correct answer
A. < 8 : 1
Explanation
The correct answer is < 8 : 1.
PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ________ °C?
Buckingham-π theorem states that in any physical problem including ‘n’ quantities having ‘m’ dimensions, the quantities can be arranged into ________ independent dimensionless parameters?
Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ________ ppm (parts per million)?
1 BTU/ft3 is approximately equal to ________ kcal/m3?
Commercial production of polypropylene employs ________ polymerisation?
Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of________?