Correct answer
D. Optical pyrometer (disappearing filament type)
Explanation
The correct answer is Optical pyrometer (disappearing filament type).
When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids?
1000 kg of wet solids are to be dried from 60% to 20% moisture (by weight). The mass of moisture removed in kg is________?
Radioactive solid nuclear wastes are disposed off by ________?
Phenols are added in gasoline to________?
A vessel of volume 1000 m3 contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately?
Which one is neutral in character?