Which type of fuel systems are most sensitive to dirt intrusion?
A. Hydraulic
B. Vented.
C. Self priming.
D. Common rail (CR)
Answer: D
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Women and minorities who enter the industry often find:
A. The same job responsibilities and demands as others in the industry B. Their leadership helps the business better serve a broad diversity of customers C. Overcoming barriers for professional advancement can be challenging D. All of the above are true
Why is cellular respiration said to be the opposite process to photosynthesis?
What will be an ideal response?
The most effective method of checking the heating elements of an electric furnace during operation is:
A) Measuring the temperature of each heat strip. B) A visual inspection. C) Checking the resistance of each heat strip. D) Checking the amp draw of each heat strip.
Which method enables ultraviolet (UV) lamps to be able to kill the maximum number of microbes in a duct
system? a. Install UV lamps in the airstream ahead of an EAC. b. Constantly bathe the evaporator coil with UV light. c. Cycle the UV lamps on and off with the furnace blower. d. Install UV lamps in the return air duct airstream.