Author Question: A backup camera system can may be integrated with the vehicle ________ system A) Reverse B) ... (Read 128 times)

moongchi · **on:** Jun 23, 2018

A backup camera system can may be integrated with the vehicle ________ system

A) Reverse B) Navigation C) HUD D) OnStar

Question 2

Why is a vacuum line attached to a fuel-pressure regulator on many port-fuel-injected engines?

A) To raise the fuel pressure at idle
B) To create an equal pressure drop across the injectors
C) To lower the fuel pressure under heavy engine load conditions to help improve fuel economy
D) To draw fuel back into the intake manifold through the vacuum hose