A tank initially contains 250 gallons of fresh water. Water containing 9 grams of salt per gallon enters the tank at the rate of 10 gallons per minute, and the well mixed solution leaves the tank at the rate of 5 gallons per minute. The amount of salt in the tank after 6 minutes is a) 487.74 grams. b) 511.07 grams. c) 508.86 grams. d) 480.09 grams.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer