Multiple choice

How does an aeroplane design help to reduce fluid friction?

  1. Filling only half the capacity of its fuel tank.

  2. By reducing the number of passengers in it.

  3. Use of aviation fuel in it.

  4. It is streamlined in shape.

  5. Powerful engines.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Streamlined shape of an aeroplane reduces fluid friction.