Final answer:
The sentence is subjective since interpretation depends on personal opinion.
Step-by-step explanation:
The sentence 'His aircraft was an old Cessna that sounded like a large lawn mower' is a statement describing the sound of the aircraft. The question asks if this statement is true or false.
In this case, the statement is subjective and can be interpreted differently by different individuals. Some people may agree that the sound of the aircraft resembles that of a large lawn mower, while others may not. Therefore, the answer to the question would depend on the perspective of the person hearing the sound.
As a result, the answer to the question is 'subjective' rather than 'true' or 'false' because it is based on personal interpretation and opinion.