172 Engines L2 L2

What type of sensor uses LED?

• Optical sensor

• Inductive pick-up

• Hall effect

• Points and Condenser

Which of the following is not an advantage of DIS

• Fewer moving parts

• Increased coil saturation

• Increased maintenance

• No mechanical timing

In the diagram shown, what would be the effect if there was an open circuit in Coil 2 primary windings?

• No plug firing voltage on 4a 4b 4c 4d.

• No plug firing voltage on 4a 4b 4c.

• No plug firing voltage on 4a 4b.

• No plug firing voltage on 4c 4d.

What is meant by term "Flame travel"?

• combustion as the flame spreads away from spark plug

• combustion stroke including squish

• how far piston moves with burn

• air/fuel mixing in pre-combustion

When is greatest pressure build up on the crown

• When Harry & Meghan are on Oprah

• 10° – 12° after TDC

• 10° – 12° before TDC

• At TDC

As the Engine slows we need to _________ the ignition timing

• Pre-detonate

• Advance

• Retard

• Increase

Ignition firing takes place bTDC

• True

• False

What is the name given to small electrical switches

• Transactors

• Transmitters

• Transceivers

• Transistors

What is flash point?

• The ability of a fuel to burn at low temperatures

• The anti-knock index number of a fuel

• The critical temperature at which the fuel will ignite

• The measure of how quickly fuel vapourises

Cetane is the rating value for Petrol fuel?

• True

• False