A vehicle's oil pressure warning light is on. Technician A says that the pressure sending unit should be replaced and the vehicle re- checked. Technician B says that a mechanical oil pressure gauge should be used to check the oil pressure before replacing the sending unit. Which technician is correct?

If an engine is described as square, which of the following would be true?

A. Flat configuration B. Must be an in-line 4 or 6 cylinder C. Must be a 90 degree V configuration D. Bore and stroke dimensions are equal

As charging takes place, current flows in a positive direction.

Answer the following statement true (T) or false (F)

The ____ is used for fabrication, quality control, and troubleshooting of the wiring of electrical circuits and systems.

A. One line diagram B. pictorial diagram C. wireless diagram D. wiring diagram E. none of the above

Which sensor is used to determine engine load?

A) TP B) RPM C) MAP D) ECT