List three types of plastic pipe
What will be an ideal response?
Any three of the following: polyethylene (PE), polyvinyl chloride (PVC), chlorinated polyvinyl
chloride (CPVC), acrylonitrile-butadiene-styrene (ABS)
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Which of the following is often overlooked as a nutrient?
a. fats c. protein b. carbohydrates d. water
Technician A says that crossovers are used to block certain frequencies to allow each type of speaker to perform its job better. Technician B says that a high-pass filter is used to block high-frequency sounds being sent to large woofer speakers, and a low-pass filter blocks low-frequency sounds being sent to tweeters. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Which type of burner has the highest common operating percentage of CO2?
A) old-style gun burners B) flame-retention gun burner C) rotary wall flame burner D) newer-style gun burners
Root-mean square (RMS) is a mathematical formula for:
A) Measuring the pressure drop across an air filter. B) Calculating the electrical power passing through a alternating current circuit. C) Determining the physical resistance of an AC motor. D) Determining the price of a replacement compressor.