ASE certification study guide questions with correct answers

Spark plugs are being replaced on a v6 engine. Which of the following should be performed before removing the boot? - Answer Twist the boot 1/2 a turn Technician A days that a positive crankcase ventilation (pvc) system reduces vehicle emissions. Tech B says that a pvc system helps increase crankcase pressure. Who is correct? - Answer Tech A Tech A says that secondary ignition wires should be inspected when replacing spark plugs. Tech B says that if a new spark plug is dropped it can be used as long as the gap doesn't change. Who is correct? - Answer Tech A Incorrect valve timing could be caused by... - Answer Incorrect timing belt position When measuring parallelism of a disc brake rotor, A technician measures 0.002" variation beyond the specification. The next step is to? -