What senses the line temperature in electronic expansion valves?
A) Magnetically ballasted electronic bulbs B) Bimetal snap disks
C) Thermistors D) Magnetic induction thermal energy sensors
C
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What types of claims could arise related to the use of Building Information Modeling software on construction projects?
What will be an ideal response?
When a drop in evaporator pressure is sensed, an evaporator pressure regulating valve will respond by
_____. a. opening fully b. moving toward closed c. moving toward open d. closing completely
A zener diode is normally used for voltage regulation. A zener diode, however, can also be used for high voltage spike protection if connected ________.
A) Positive to anode, negative to cathode
B) Positive to cathode, ground to anode
C) Negative to anode, cathode to a resistor then to a lower voltage terminal
D) Both A and C
Which of the following is NOT a hazard frequently encountered in waste systems?
A. back siphonage B. improper drainage C. sewer gas D. waste products backing up in plumbing fixtures