6. (8166.) Unless otherwise specified, the radius of a bend is the
A—inside radius of the metal being formed.
B—inside radius plus one-half the thickness of the metal being formed.
C—radius of the neutral axis plus one-half the thickness of the metal being formed.
7. (8251.) The correct dihedral angle can be determined by
A— measuring the angular setting of each wing at the rear spar with a bubble protractor.
B—placing a straightedge and bubble protractor across the spars while the airplane is in flying position.
C—using a dihedral board and bubble level along the front spar of each wing.
8. (8274.) With which system is differential control associated?
A—Trim.
B—Aileron.
C—Elevator.
9. (8319.) A stripe or mark applied to a wheel rim and extending onto the sidewall of a tube-type tire is a
A—slippage mark.
B—wheel-to-tire balance mark.
C—wheel weight reference mark.
10. (8333.) When an air/oil type of landing gear shock strut is used, the initial shock of landing is cushioned by
A—compression of the air charge.
B—the fluid being forced through a metered opening.
C—compression of the fluid.
11. (8343.) Aircraft tire pressure should be checked
A— using only a push on stick-type gauge having 1 – pound increments.
B—at least once a week or more often.
C—as soon as possible after each flight.
12. (8369.) In shock struts, chevron seals are used to
A—absorb bottoming effect.
B—prevent oil from escaping.
C—serve as a bearing surface.