Technician A says that most differential carriers have two oil fill holes at different levels and that the pinion angle off a horizontal plane determines which fill hole should be used.. Technician B says that the oil fill hole that is highest on an axle should always be used to check oil level. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: B
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The temperature of the water returning to a chiller used for comfort cooling is typically about _____.
a. 35°F (2°C) b. 45°F (7°C) c. 55°F (13°C) d. 65°F (18°C)
Which of the following safety statements related to plasma arc cutting is true?
a. A hot-work permit is not required for plasma arc cutting due to the nature of the process. b. Both methane and propane are lighter than air and rise quickly from the work area if released. c. Never carry matches or gas-filled lighters in your pockets. d. Unlike oxyfuel cutting, a vessel can be cut safely with plasma regardless of its contents.
Random defrost is accomplished ____.
A. with a timer B. using a high pressure control C. using a low pressure control D. occurs automatically during the off cycle of the compressor
It is often claimed that you should leave the heating system in your house on all the time rather than turning it off when you are not home because it takes more energy to heat the house back to its normal temperature. What do you think?
What will be an ideal response?