Which of the following insulating materials is best suited for cold-temperature applications?
a. Calcium silicate insulation
b. Flexible foam insulation
c. Fiberglass pipe insulation
d. Cellular glass insulation
d. Cellular glass insulation
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The tool shown in the above figure is used to _____ pipe.
a. join
b. clean
c. cut and bevel
d. thread
The type of high-intensity discharge (HID) lamp that has excellent color rendition is the _____.
a. metal halide lamp b. high-pressure sodium lamp c. mercury vapor lamp d. low-pressure sodium lamp
If the starter "whines" when engaged, which of these is a possible cause?
A) Defective solenoid B) Worn leather armature brake C) Worn or defective starter drive D) Open neutral safety switch
The letters inside the triangles in Figure 2 represent the _____.
a. receptacle types
b. fixture types
c. placement of smoke detectors
d. amount of revisions on the drawing