When the pressure in a caliper is released, the piston is moved back in the cylinder by ________

A) Spring pressure B) The opening of the vent port
C) The action of the piston seal D) The leverage of the caliper arms


C

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SA Identify Identify and state the historical significance ofEli Whitney.

What will be an ideal response?

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Technician A says that the FMCSA is aiming to make electronic onboard recorders (EOBRs) mandatory in all vehicles put into service from MY 2016 onward.  Technician B says that the FMCSA can currently mandate the installation of an EOBR into a vehicle when its driver is cited for a 10% over HOS infraction. Who is correct?

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

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If bearing-to-journal clearance is doubled, how much oil will flow?

A) Four times the amount B) One-half as much C) The same amount if the pressure is kept constant D) Double the amount

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Which of the following problems could occur if a humidifier is not regularly cleaned and checked for operation?

A) excessive dryness B) mold growth C) CO poisoning D) nickel in the water supply

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