question_answer

Which of the following pairs of engine and performance/characteristic is/are correctly matched?

1. Turbojet: Efficiency increases with flight speed

2. SI engine: Lowest specific fuel consumption

3. Turboprop: Suitable for low flight speeds

Select the correct answer using the codes given below:

Codes:

A) 1 and 2            

B) 2 and 3

C) 1 and 3            

D) 2 alone