The manufacturer's data on a split AC system indicates that the normal temperature drop should be 15°F at the current operating conditions. If the evaporator entering air temperature is 80°F and the leaving air temperature is 55°F, the technician knows that the system:
A) Most likely is overcharged because it is cooling better than it is supposed to.
B) Is working great, even better than manufacturer's specifications.
C) Most likely has higher than normal airflow because of the higher-than-normal temperature drop.
D) Most likely has low air flow because of the higher-than-normal temperature drop.
D
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Consider the diagram below. At point C, which of the following statement(s) is (are) true?
A) The optimal purchase for this consumer is 8 glasses of Kool-Aid and 6 glasses of tea.
B)
MUKool-Aid
Ptea
=
MUtea
PKool-Aid
C) The marginal rate of substitution is -3/4.
D) All of the above
Concrete for some strip footings may be placed in trenches without the use of forms if the soil is _____.
a. sandy b. very cohesive c. very moist d. compacted
To the nearest hundredth of a degree, what is the measure of angle A in the accompanying figure?
A. 30.90o B. 36.55o C. 38.09o D. 42.99o
Why is the delivery person so important to the floral shop?
What will be an ideal response?