The fuel in a CNG-fueled vehicle is stored at pressures as high as 3,500 psi. The CNG is delivered to the mixer valve at a pressure of ________.
A) 0.5 psi B) 150 to 175 psi C) 4 to 6 psi D) None of the above
Question 2
Which of these is true regarding port fuel injection systems?
A) The intake manifold may be shaped and sized to best fit the engine performance requirements.
B) Fuel distribution to all cylinders is equal.
C) Fuel is injected almost directly into the combustion chamber.
D) All of these are correct.
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