For the following pairs of sinusoids, determine which one leads and by how much.


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Conduit systems in volatile envirnoments must be _____.

a. sealed b. bent c. left uncovered d. galvanized

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What is the main function of a hold-off diaphragm?

A. It converts air pressure to mechanical service brake pressure B. It prevents compounding of the foundation brakes C. It prevents spring brake force from acting on the pushrod D. It converts spring pressure into pneumatic pressure

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On a system with a fixed metering device, an excessive amount of oil in the system can cause _____

a. a shortage of refrigerant in the evaporator b. excessive lubrication c. low superheat values d. refrigerant floodback

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If a vehicle is equipped with at winter front it:

A. Must not cover more that 70% of the radiator surface B. Must not cover more than 75% of the radiator surface C. Must not cover more than 80% of the radiator surface D. Must not cover more than 85% of the radiator surface

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