The level of water in a city water tower is 125ft. above the ground. the tank is kept with an air space which can be pressurized with compressed air. it is important to maintain a pressure at the bottom of the tower at 75 psig. what gauge pressure has to be applied to the air in the top of the tower to get the required pressure at the bottom of the tower. if the atmospheric pressure is 755mmhg, what is the absolute pressure at the bottom of the tower. draw the system and show the pressure gauges.

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?