____ produce electricity by chemical action.

a. Batteries
b. Solar cells
c. Thermocouples
d. Piezoelectric devices


a. Batteries

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What pressure measurement is any pressure below atmospheric pressure?

A) Vapor pressure B) Gauge pressure (psig) C) Absolute pressure (psia) D) Vacuum pressure (psiv)

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How do horses address the challenges of very high temperatures?

a. panting c. licking their surface b. sweating d. wallowing in mud

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Technician A says that all injectors in a sequential fuel injection system often use the same power wire. Technician B says that each injector in a sequential fuel injection system should have a different ground wire. Which technician is correct?

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

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When attempting to dynamically balance a truck driveline, which of the following must be done?

A. all the wheels must be off the ground B. the frame must be level C. the transmission and differential carrier must be at the same angle raised as on the ground D. all of the above

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