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A 600 MWe power plant has an efficiency of 36% with 15% of the waste heat being released to the atmosphere as stack heat and the other 85% taken away in the cooling water. Instead of drawing water from a river, heating it, and returning it to the river, this plant uses an evaporative cooling tower wherein heat is released to the atmosphere as cooling water is vaporized. At what rate must 15oC makeup water be pumped from the river to offset the water lost in the cooling tower?
A conical tube of length 8 m fixed vertically with its smaller end upwards. The velocity head and pressure head at upper ends are 1.27 m and 2.50 m respectively.
Determine total delay, maximum queue length, and the time that the 20th vehicle to arrive waits from its arrival to its departure.
If the queue clears exactly at the end of the effective green D/D/1 queuing applies, determine the total vehicle delay in the cycle (in veh-sec) .
What is the maximum safe speed around the curve? If the speed limit on the roadway is 60mph, what action should be taken by the engineer?
a) The maximum flow rate that can be achieved without cavitation occurring in the piping system. b) The maximum elevation of the highest point of the piping system to avoid cavitation.
what is the engineering ethics case related to civil engineering with reference and discuss all the engineering ethics issues which covered the "Engineering etics concepte and cases?
Writing case study about bridge collapse
An approach to a pretimed signal with a 60 sec cycle has nine vehicles in the queue at the beginning of the effective green. Four of the nine vehicles in the queue are left over from the previous cycle.
The central angle is 35 degrees, the superelevation is 0.08, and 20.6 ft is cleared (for sight distance) from the inside edge of the innermost lane. Determine a maximum safe speed (assuming current design standards) to the nearest 5 mi/h.
(a) Use differentiation to find a general expression for the rocket's velocity as a function of time, (b) When is the velocity zero?
The gate is rectangular with a horizontal width of 2m perpendicular to the paper. For a depth h = 3m of water, calculate the required force exerted by the hydraulic cylinder to keep the gate just closed.
Evaluate company performance in relation to GRI standards and comment on Stigler's theory.
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