4290-172 Quick Revision

1. Where on the petrol fuel injection system will the components high-lighted in the diagram be fitted?

• Above the throttle butterfly.

• Inlet manifold.

• Cylinder head.

• Exhaust manifold.

What does the abbreviation “RON” refer to?

• Octane rating.

• Cetane rating.

• Air/fuel ratio.

• Mixture strength.

A blocked EFI fuel filter would cause

• an increase of HC in the exhaust

• excessive fuel consumption

• Improved fuel consumption

• a severe lack of power

Which one of the following methods of testing is used initially to detect an excessively noisy pump?

• Aurally

• Orally

• Visually

• Substitution

Which one of the following additional components must be visually inspected when replacing a catalyst?

• Pre Lambda sensor voltage

• Exhaust mounting springs

• Post Lambda sensor voltage

• Exhaust mountings and brackets

Pulling on a resistive type high tension lead instead of the end connection often causes damage to the

• centre copper core

• centre carbon core

• outer plastic coating

• inner plastic coating

A knock sensor can be tested by comparing the signal it displays on a

• ammeter.

• ohm meter

• oscilloscope

• dwell meter

The term for a spark plug firing on the stroke before its normal firing stroke is called

• ATDC

• BTDC

• ABDC

• BBDC

An ignition coil needs to have which of the following?

• A primary, secondary and third coil winding.

• A primary, secondary coil winding and iron core

• A set of ignition leads rotor arm and spark plug

• A metal casing, oil filled and only one coil winding

Where is the catalytic converter normally situated on a modern car?

• In the rear tail pipe.

• Close to the exhaust manifold

• Close to the rear outlet as possible

• Aligned to the inlet manifold