Technician A says that all metal-to-metal contact areas of the disc brake system should be lubricated with special brake grease for proper operation. Technician B says that the lubrication helps reduce brake noise (squeal). Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician


C

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The float switch contacts may be either normally open or normally closed and ____.

a. may not be submerged b. may not be suspended c. may be submerged d. may be suspended

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Noise induced hearing loss is permanent. How can you prevent hearing loss in the workplace?

What will be an ideal response?

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Positive pressure ventilation is effective:

A. when opening of doors and windows in the structure can be controlled. B. only if you can create a lower pressure zone in the structure. C. if the exhaust opening is smaller than the entry point, creating a Venturi effect. D. if an entire floor is ventilated at a time, starting at the highest floor and working down.

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If the temperature of a liquid is lowered, it causes the Reynolds number to __________.

A. increase B. decrease

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