To monitor the drilling rate on an oil rig, a bottle filled with a glycol-water mixture, (sg = 1.1) is mounted on the traveling block (pulley system) which lowers the drilling pipe. flexible tubing connects the bottle to a manometer on the drilling rig floor. by measuring the pressure change with respect to time, the drilling rate can be found. if the pressure drops by 2.42 kpa per minute what is the drilling rate in m/min?

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.

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges