Q2 Diesel Engines

Question 1

How is Diesel engine fuel ignition continuously achieved?

a.The glow plugs ignite the fuel

b.The fuel auto ignites in the cylinder

c.It is ignited by the injector

d.The spark plug provides a spark

Answer 1

b.The fuel auto ignites in the cylinder

Question 2

Diesel engines have a higher compression ratio than petrol engines. Which of the below ranges is it reasonable to assume is for a diesel?

a.14:1 - 28:1

b.10:1 - 20:1

c.60:1 - 100:1

d.2:1 - 10:1

Answer 2

a.14:1 - 28:1

Question 3

Which of the following would be suitable for use in a Diesel engine?
Select one:

1.Jet A-1

2.MOGAS

3.Jet A

4.AVGAS 100LL

Answer 3

3.Jet A

Question 4

Which of the following statements about a diesel engine is incorrect?

a.They have the same 4 strokes as a petrol engine.

b.They have a better power to weight ratio.

c.They are Constant Volume engines.

d.They are compression ignition engines.

Answer 4

b.They have a better power to weight ratio.

Question 5

What is the weakest mixture a diesel can withstand?

a.20:1

b.8:1

c.There is no low limit for mixture.

d.15:1

Answer 5

c.There is no low limit for mixture.