Why is a vacuum line attached to a fuel-pressure regulator on many port-fuel-injected engines?
A) To create an equal pressure drop across the injectors
B) To lower the fuel pressure under heavy engine load conditions to help improve fuel economy
C) To draw fuel back into the intake manifold through the vacuum hose
D) To raise the fuel pressure at idle
A
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Why do we measure temperatures at the evaporator rather than the suction pressure?
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Which one of the following statements on Logix addressing are NOT true?
A) Tag names indicate by name the data that the tag represents. B) The maximum tag name length is 50 characters. C) Tags must begin with a letter or underscore but cannot end with an underscore. D) The Edit Tab in the Tags Window Dialog Box is used to create program tags by entering the data.
In a single-point or ____ perspective, one face of the object in parallel perspective is sketched in its true size and shape, the same as in an orthographic sketch.
A. parallel B. connected C. narrow D. oblique