Describe two tests which can be carried out on a propeller shaft?

1) make sure the universal joints are smooth and no tight spots through movement.2) ensure there is no excessive play or wear in the universal jointsyou will need to remove the propshaft to carry out these checks.

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Does the shape of a plane wing affect the flight?

Yes, wing shape is important for several reasons: If the shape is wrong, then the air flow will peel loose from the wing's upper surface. If this happens, then the air flow becomes turbulent, and the wing can no longer deflect the air. This is called "STALL." So the shape of the wing is important...

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