How can infrared light be used to detect refrigerant?
A) Infrared sensors change resistance in the presence of refrigerant.
B) Infrared sensors interact with oxygen at different rates depending on the refrigerant exposure.
C) Most gases absorb infrared light at a characteristic frequency.
D) Refrigerant turns the infrared light blue.
C
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Which of the following has the advantage of being resistant to shock and vibration and is commonly used for the I/O track of a programmable controller?
a. Solid-state relay b. Mechanically held relay c. Bimetallic overload relay d. Thermal overload relay
Discuss ten features a good growing medium provides to container plants
What will be an ideal response?
What type of sensor is used as a height sensor on vehicles equipped with an electronically controlled suspension?
A) Potentiometer B) Photo cell C) Hall-effect D) All of the above
For the table given, repeat Problem 1–24 for the following O rings, given the AS 568A standard number. Solve Problems 1–25 and 1–26 using SI units. Solve Problems 1–27 and 1–28 using ips units. Note: The solutions require research.
