Which of the following problems could occur if a humidifier is not regularly cleaned and checked for operation?
A) Excessive dryness B) Nickel in the water supply
C) CO poisoning D) Mold growth
D
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When constructing a wall with steel studs, the spacing between studs is indicated on the _____.
a. site plan b. plans and specifications c. mechanical plan d. header schedule
What are the steps involved in physically testing a fan clutch?
What will be an ideal response?
Which of the following statements is LEAST-Likely true?
A. The cam and lifters on pushrod engines become wear-mated after the first few weeks the engine is run. B. Used lifters will rapidly wear out a new cam. C. If a cam is to be reused, it is important that the lifters be kept in order for replacement on their respective lobes. D. If a flat-tappet cam is replaced, replace the lifters also.
The first check when answering a no-heat oil furnace call should be
A) Checking to see if there is oil in the tank and if the oil is clean B) Checking the output of the ignition transformer C) Checking the cad cell circuit D) Checking the fan switch setting