Explain how the application of UV-C light works to improve indoor air quality.
What will be an ideal response?
The UV-C light has the ability to penetrate the walls of microbes that can have negative effects on indoor air quality. Once penetrated, the UV-C light can damage the DNA of the microbe, killing smaller ones and preventing larger ones from reproducing.
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Two technicians are discussing master cylinders. Technician A says that it is normal to see fluid movement in the reservoir when the brake pedal is depressed. Technician B says a defective master cylinder can cause the brake pedal to slowly sink to the floor when depressed. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
You should flush the system:
A) For 5 to 10 minutes per foot of line. B) Until the solvent can is empty. C) Until no more oil or debris comes out of the line. D) For 5 to 10 minutes per pound of charge.
The front view is always the actual front of the part when it is in use.
Answer the following statement true (T) or false (F)
Which of the following are often used in conjunction with time clocks to turn off lighting when it is no longer needed?
a. Sound sensors b. Occupancy sensors c. Photosensors d. Ultrasonic sensors