The symbol shown in the figure above represents a _____.
a. thermostatic switch
b. low-pressure switch
c. high-pressure switch
d. time-delay relay
a. thermostatic switch
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Which of the following is a three-phase connection formed by connecting one end of each phase together to form a center point?
a. delta b. alpha c. wye d. series
Which of these is the section that includes the license plate number and state?
A) Accounting section B) Estimates and approvals section C) Customer information section D) Vehicle information section
When multiple rooftop units are used to condition the air in a building, it is common practice to label the units and their corresponding ____________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that most crankshafts can be reground to be 0.010, 0.020, or 0.030 inch undersize. Technician B says that most engine bearings are constructed with an aluminum shell for strength and are covered with a tin-lead alloy. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician