Company: Reliance
Difficulty: medium
Why are heat pumps increasingly used in industrial drying processes? They offer faster drying times They can operate at extremely high temperatures They are energy efficient and can recycle heat They require no external energy source What is the typical optimal percentage of oxygen in the flue gases of a gas-fired furnace? 10-12% 0% 15% 2-5% In the context of crystallization, Ostwald ripening refers to the process where: Small crystals dissolve, and larger crystals grow All crystals grow at the same rate Crystals change their chemical composition over time Crystals become more soluble in the solvent Water (density=1000 kg m^-3) is pumped at a rate of 36 m3/h, from a tank 2 m below the pump, to an overhead pressurized vessel 10 m above the pump. The pressure values at the point of suction from the bottom tank and at the discharge point to the overhead vessel are 120 kPa and 240 kPa, respectively. All pipes in the system have the same diameter. Take acceleration due to gravity, g = 10 m