Calculate the volume of a room that is 12 feet wide and 15 feet long with a 10-foot ceiling
What will be an ideal response?
12 feet x 15 feet = 180 square feet 180 square feet x 10 feet = 1800 cubic feet
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After manufacture, computer disks are tested for errors. Let X be the number of errors detected on a randomly chosen disk. The following table presents values of the cumulative distribution function F(x)of X.
a. What is the probability that two or fewer errors are detected?
b. What is the probability that more than three errors are detected?
c. What is the probability that exactly one error is detected?
d. What is the probability that no errors are detected?
e. What is the most probable number of errors to be detected?
A fitting that sends the fluid back in the same direction from which it came is a(n) _____ fitting.
a. elbow b. return bend c. offset d. taper
How does the refrigeration oil return from the chiller to the compressor?
A) Through an oil return system B) The oil return pump moves the oil from the chiller to the compressor. C) The oil stays in the compressor, eliminating the need for returning it. D) It is carried back by the refrigerant.
When a refrigeration unit starts short cycling because the trailer has been improperly loaded what component is tricked into thinking the temperature within the controlled space is sufficient?
A. The box temperature B. The thermostat C. The evaporator inlet temperature sensor D. The evaporator outlet temperature sensor