Soot accumulation on the heat exchanger is
A) Not possible with a gas furnace
B) Caused by incomplete combustion
C) Normal over a period of years
D) A natural protective layer for the inside of the heat exchanger
B
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An employee is off the clock and using his personal vehicle to pick up parts for the service facility. In an accident which coverage would likely cover the accident if the service facility carries “employee owned” auto coverage?
A. Business liability insurance (Business operations policy) B. Garage keepers insurance C. Property insurance with commercial auto coverage D. Workers compensation
Which of the following is a true statement regarding the personnel roles in a crane lift?
a. The lift director is typically a professional engineer (PE). b. The crane owner must assume the role of lift director. c. A single individual can assume more than one role. d. The signal person must be a certified rigger.
A lawn may fail because _____
A) fertilizer was applied too late in the spring B) more than 1/3 of the top removed at one mowing C) the lawn was mowed to 1/2 to 1 1/2 inches D) all of the above
Which of the following accurately describes the danger of air in the refrigeration system?
A) Oxygen will chemically react with the refrigeration oil and deposits buildup in the discharge valve area, causing compressor motor burnouts. B) Oxygen may violently react with hydrogen and potentially cause a fire within the refrigeration system. C) Too much air makes it impossible to properly calibrate an analog vacuum gauge within the refrigeration system. D) The presence of air makes it impossible to connect a vacuum pump, which is necessary to perform the evacuation procedure.