Contains chapter tests complete with details of assessment. Provides a variety of decision making activities, IT tasks and enquiry-based exercises. Close links to exercises in the book.

Provides exercises for all abilities with levels of answers differentiated. Accompanying website allows teachers and students to have easy access to further information on the topics covered in the series.

The reason for this is that engine oil normally resides in the crankcase and must be pumped to certain areas of the engine for it to serve its purpose of lubrication.