SPM Science 2017, Paper 2 (Question 9)

Question 9:
Diagram 9 shows the operational principle of a four-stroke diesel engine.

Diagram 9

(a) Name the part K. [1 mark]

(b) Name the substance L. [1 mark]

(c) Which stroke shows that the diesel is injected into the cylinder? [1 mark]

(d) Mark (√) in the boxes provided the characteristics of a four-stroke diesel engine. [2 marks]

(e) In your opinion, why most taxis in Malaysia use natural gas as fuel? [1 mark]

Fuel injector


T – Power stroke


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