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Determine the corrections or otherwise of the following assertion and reason : Assertion : Maintaining smooth longitudinal contour in fuselage will give better aerodynamic design. Reason: Longitudinal control lines are used to provide smoothness to the fuselage. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Maintaining smooth longitudinal contour in fuselage will give better aerodynamic design. Reason: Longitudinal control lines are used to provide smoothness to the fuselage. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true Correct Answer A

A good aerodynamic design of a fuselage will maintain smooth longitudinal contour to reduce the drag and other similar effects. This can be achieved by using longitudinal control lines. Smooth fuselage with lesser discontinuity will reduce the drag and as a result of which aerodynamic efficiency will improve. Hence, and both correct however, is not correct reason.

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