Air at 200 kPa and 30ºC is contained in a 4-m3 rigid volume; it is heated with a 100-? resistance heater that operates across an electric potential of 100 V for 20 minutes. The temperature rise of the air is nearest:
A) 36ºC
B) 30ºC
C) 24ºC
D) 18ºC
D) 18ºC
The electrical resistance provides (V is voltage in V2/R)
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Mike’s loading ramp in Figure 3-4 covers 30 feet on the horizontal with a 6-foot rise. Atwhat angle does the ramp rise?
A rectangular deck is to be constructed. The length of the deck is to be 
feet longer than the width and the deck is to contain 275 square feet. Determine the required length and width. Note: Area of a rectangle = length × width.
Fill in the blank(s) with the appropriate word(s).
Technician A says that a deployed airbag can be repacked, reused, and reinstalled in the vehicle. Technician B says that a deployed airbag should be discarded and replaced with an entire new assembly. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Which of the following statements is true?
A) Usually forecast error is distributed normally about the average demand. B) The mean absolute deviation can be used as a measure of forecast error. C) In a normal distribution, the error will be within 1 MAD of the average about 60% of the time. D) All of the above are true. E) None of the above is true.