The recovery level for Type II systems containing less than 200 lb of R-22 refrigerant is:
A) 0 psig. B) 4 in Hg vacuum. C) 10 in Hg vacuum. D) 15 in Hg vacuum.
A
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What percent of the circle in the accompanying figure is shaded?
A. 20 B. 25 C. 33 D. 50
Liquid water at 10°C enters an insulated mixing chamber at a rate of 180 kg/s. In the chamber, the water is mixed with a second stream of liquid water, which enters at 90°C. Using your mixing chamber model to calculate the data, plot the exit temperature of the combined stream for mass flow rates of the second stream ranging from 20 kg/s to 500 kg/s.
State 1: Cool Liquid inlet; State 2: Warm Liquid inlet; State 3: Outlet Given: T1 = 10°C; T2 = 90°C; m?1= 180 kg/s Assume: Q?=0 (insulated). Given no other information regarding the mixing chamber, make the following common assumptions: W?=?KE=?PE=0 Also, assume the mixing chamber is a multiple-inlet, single-outlet, steady-state, steady-flow device. What will be an ideal response?
Foresters can estimate the amount of wood before trees are cut
Indicate whether the statement is true or false
List three features of a maintenance cost analysis
What will be an ideal response?