Water at 70°f flows by gravity from a reservoir at high elevation to a lower reservoir through a 60 ft length of pipeline made of 2 in cast iron. the pipeline includes a well-rounded entrance, 4 standard flanged elbows, a fully-open gate valve, and a sharp exit. to maintain a flow of 10 ft3/min, calculate the height of the free surface of the upper reservoir in ft relative to the free surface of the lower reservoir.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

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.