Certain types of electrical equipment are designed for safe use in hazardous conditions. What are these conditions?
What will be an ideal response?
These hazardous conditions include the following: 1) damp or wet conditions, 2) environments in which gases, fumes, vapors, liquids, or other substances at present that might cause deterioration of the electrical components of the equipment, and 3) extreme temperatures (hot or cold).
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On compressors using capacitors (start and/or run capacitors) they are all wired between what terminals?
a. Between R and C b. Between C and S c. Between R and S
When doing a quantity takeoff, the last step is to _____
a. list the materials specified for each system b. total the quantities per category of material c. determine the scope of the work to be done d. review the specifications and seek clarification, if necessary HVAC
The ASME ____________________ are published by the American Society of Mechanical Engineers and are predominant in the U.S..
Fill in the blank(s) with the appropriate word(s).
Technician A says that Ohm's law can be used to determine circuit current flow if total circuit resistance and total voltage are known. Technician B says that Ohm's law can be used to calculate the unknown resistance of a load in a circuit if total current and source voltage are known. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B