Thursday, 31 October 2024, 11:52 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
D

Dead Axle

A non-driving axle. Supports the vehicle and carries freely rotating wheels.

Dead centre

Top or bottom piston positions in the cylinder when the crankshaft is at 0° or 180° of rotation.

Deceleration

Opposite of acceleration. Reducing velocity or speed. Slowing down.

Decelerometer

Brake Meter for recording rate of deceleration during braking for test purposes.

Decimal

A number system that uses a base of 10.

Decimal Place

The position of numbers after (to the right of) the decimal point.

Deck (Block)

The top of the engine block forming the mating face for the cylinder head.

Dedicated Test Equipment

Equipment made to work specifically with one system or one manufacturer's vehicle range.

Deep Socket

Same as a normal socket but longer to allow it to be used on a component such as a spark plug.

Defamatory

Untrue and harmful information.