Which component in a refrigeration system is responsible for reducing the pressure in the system?
A. compressor
B. evaporator
C. condenser
D. metering device
Answer: D
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A coal-fired power-plant receives heat at a rate of 625 MW from the combustion of coal, and rejects 430 MW of heat to cooling water received from a lake. Determine the thermal efficiency of the power plant.
Given: Q?C=?430 MW; Q?H=625 MW Assume: The power plant is operating as a cyclic heat engine. What will be an ideal response?
In the right triangle below, when side x = side y, what is the value of the cotangent function?
Fill in the blank(s) with the appropriate word(s).
Verify the 5-year recovery period rates for MACRS given in Table 16–2. Start with the DDB method in year 1, and switch to SL depreciation when it offers a larger recovery rate. Solve by hand and spreadsheet using B = $1 and S = 0.
 FIGURE 1.png)
What is the break-even chart?
What will be an ideal response?