What horsepower must be supplied to the water to pump 3 cfs at 68°F from the lower to the upper reservoir? Assume that the head loss in the pipe is given by hL=0.018(L/D)*(V2/2*g) where L is the length of pipe, D is dimeter of the pipe and V is velocity in the pipe. Moreover, there is sudden-expansion head loss in the system that can be calculated by V2/2*g. Sketch HGL and EGL. (20 pts)

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.

Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options