Which of the following is an incorrect example for BL diverter?

A)
Flap
B)
Step diverter
C)
Boundary layer suction
D)
Boundary layer bypass duct

Correct Answer :   Step diverter


Explanation : Boundary layer diverter is used to divert the boundary layer formed typically on the body. Step diverter, BL bypass duct and BL suction are some of the techniques used for this purpose. Flap is an example of high lift device.