The vent valve in an evaporative emissions system may be:
A. Opened to allow fresh air through the charcoal canister.
B. Closed with the purge valve open while the PCM monitors the fuel tank pressure sensor for vacuum
C. Closed to prevent the system from purging.
D. Both A and B
Answer: D
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All of the following statements are true EXCEPT:
A. Replacement of CV joint seals usually requires removal of the axle. However, disassembly of the entire joint is not necessary. B. E.P. gear oils contain zinc. C. Sometimes CV joint boots tear or rub on something and become damaged. D. Front-wheel-drive vehicles have CV joints at each end of their two drive axles.
Design and development that meets the needs of the present without compromising the ability of future generations to meet their own needs is known as
a. resource management. b. environmental protection. c. designing for the future. d. sustainability in design.
When the room-temperature setting is reached, what components are opened?
A) Thermostat and gas valve circuits B) Heat anticipators C) Transformer relays D) Fan and blower contacts
A rain-sense wiper system uses a rain sensor that is usually mounted ________
A) Inside of the windshield at the top B) Outside of the windshield at the top C) On the roof D) Behind the grille