What is the difference between the way a secondary refrigerant absorbs heat and the way a primary, direct expansion refrigerant absorbs heat?
What will be an ideal response?
In a direct expansion system, the primary refrigerant evaporates and expands, absorbing both sensible and latent heat. In contrast, a secondary refrigerant does not evaporate and therefore only absorbs sensible heat, which makes the temperature difference and surface area requirements greater than those needed for a direct expansion system.
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The symbols represented by the following binary sequence "01100100000011" is the list _______.
Consider the Huffman code tree given
What will be an ideal response?
Which of the following leads to a total cost of $100?
A. cost/unit = $30, quantity = 3, fixed cost = $15 B. cost/unit = $15, quantity = 6, fixed cost = $10 C. cost/unit = $20, quantity = 5, fixed cost = $5 D. cost/unit = $20, quantity = 4, fixed cost = $10
The wide range air/fuel ratio sensor (AFS) heater element circuit operates very similarly to that of an oxygen sensor's heater element circuit.
Answer the following statement true (T) or false (F)
An ___________ geometric tolerance zone is established by two parallel planes or cylindrical zones at any specified basic angle, other than 90°, to a datum plane, a pair of datum planes, or an axis.
Fill in the blank(s) with the appropriate word(s).