Q. What is the best way to reduce aircraft noise?
A. By using shield around aircraft
B. By using quieter jet engines
C. By using heavy propellants
D. By using white paint
Answer: By using quieter jet engines
We will be happy to hear your thoughts
A. By using shield around aircraft
B. By using quieter jet engines
C. By using heavy propellants
D. By using white paint
Answer: By using quieter jet engines
