36. In which method of refrigerant leak detection, the object to be tested is pressurized with air or nitrogen?
A. bubble
B. dye
C. electronic
37. What is the MOST important selection criterion for condenser fans?
A. energy use
B. noise level
C. static pressure
38. When selecting a coil, which of the following should be considered?
A. air quality
B. energy consumption
C. space limitations
39. For chilled water, which of the following is the MOST common piping material?
A. chlorinated polyvinyl chloride (CPVC)
B. steel, galvanized
C. steel type F (CW)
40. Which type of pump is mounted on a horizontal motor supported by the motor or pump foot mountings?
A. close-coupled, single-state, end-suction
B. frame-mounted, end-suction
C. vertical in-line