Brake cleaning is being discussed. Technician A says the fumes from aerosol cleaners and open part washers are heavier than air and will settle to the lower part of the work area.  Technician B says solvent vapors are not harmful. Who is correct?

A. A only
B. B only
C. Both A and B
D. Neither A nor B


Answer: A

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A vibration that is felt in the steering wheel at highway speeds is usually due to ________.

A) Out-of-balance or bent drive shaft on a RWD vehicle B) Out-of-balance drive axle shaft or defective outer CV joints on a FWD vehicle C) Defective or out-of-balance rear tires D) Defective or out-of-balance front tires

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A total of $50,000 was allocated to a project to de­tect and reduce insider theft in the ZipCar auto parts store. Two alternatives identified as Y and Z are under consideration. The overall ROR on the $50,000 is expected to be 40%, with the rate of return on the $20,000 increment between Y and Z at 15% per year. If Z is the higher first-cost alterna­tive, (a) what is the size of the investment required in Y, and (b) what is the rate of return on Y?

What will be an ideal response?

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Counter output instructions for the Logix processor ________

A) Have tag names with word counter in every tag B) Can be in series on the rung or in parallel like the SLC 500 C) Have a totally different structure and operation compared to the PLC 5 and SLC 500 D) All of the above

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How does a PN junction photodiode operate?

What will be an ideal response?

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