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172 Engines L2 L2

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What type of sensor uses LED?

a)

Optical sensor

b)

Inductive pick-up

c)

Hall effect

d)

Points and Condenser

2.

Which of the following is not an advantage of DIS

a)

Fewer moving parts

b)

Increased coil saturation

c)

Increased maintenance

d)

No mechanical timing

3.

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

a)

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

b)

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

c)

No plug firing voltage on 4a 4b.

d)

No plug firing voltage on 4c 4d.

4.

What is meant by term "Flame travel"?

a)

combustion as the flame spreads away from spark plug

b)

combustion stroke including squish

c)

how far piston moves with burn

d)

air/fuel mixing in pre-combustion

5.

When is greatest pressure build up on the crown

a)

When Harry & Meghan are on Oprah

b)

10° – 12° after TDC

c)

10° – 12° before TDC

d)

At TDC

6.

As the Engine slows we need to _________ the ignition timing

a)

Pre-detonate

b)

Advance

c)

Retard

d)

Increase

7.

Ignition firing takes place bTDC

a)

True

b)

False

8.

What is the name given to small electrical switches

a)

Transactors

b)

Transmitters

c)

Transceivers

d)

Transistors

9.

What is flash point?

a)

The ability of a fuel to burn at low temperatures

b)

The anti-knock index number of a fuel

c)

The critical temperature at which the fuel will ignite

d)

The measure of how quickly fuel vapourises

10.

Cetane is the rating value for Petrol fuel?

a)

True

b)

False