Water is being pumped from bottom of a well 15ft deep at the rate of 200gal/he into a vented storage tank to maintain a level of water in a tank 165ft above the ground. to prevent freezing in the winter a small heater put 3btu/hr into the water during its transfer from the well to the storage tank, assuming that the well water is at 35fahrenhiet? a 2-horsepower pump is being used to pump the water . about 55% of the rated horsepower goes into work of pumping and the rest is dissipated as heat to the atomsphere.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

The higher the astm grain size number, the finer the gran is. a)-true b)-false

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