Connecting to a chassis data bus is done through what connector on most current vehicles?
A. UART serial connector.
B. J1962 data-link connector.
C. Class II OBD connectors.
D. Data bus USB connectors.
Answer: B
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A Carnot engine produces 8 kW by transferring 20 kJ/s to a 20°C reservoir. The temperature TH is nearest:
A) 410°C B) 342°C C) 278°C D) 137°C
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When memory in a vehicle ECM is described as being volatile, what happens to it when the ignition is turned off?
A. it is written to EEPROM B. it is retained magnetically C. it is activated until the next start cycle D. it is lost
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Fertilizing after planting, if necessary, is best done in early _____
A) winter B) fall C) spring D) summer
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Hybrid electric vehicles use two sources of power to operate.
Answer the following statement true (T) or false (F)
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