Quiz #1 FAA

(8103)-Shallow scratches in sheet metal may be repaired by? a. Burnishing b. buffing c. stop drilling

A

(8112)-Which is correct concerning the use of a file? a. Apply pressure on the forward stroke, only, except when filing very soft metals such as lead or aluminum. b. A smoother finish can be obtained by using a double-cut file than by using a single-cut file. c. The terms "double-cut" and "second-cut" have the same meaning in reference to files.

A

(8120)-Aircraft structural units, such as spars, engine supports, etc., which have been built up from sheet metal, are normally? a. repairable, using approved methods b. repairable, except when subjected to compressive loads c. not repairable, but must be replaced when damaged or deteriorated.

A

(8153)-What type loads cause the most rivet failures? a. shear b. bearing c. head

A

(8118)-Clad aluminum alloys are used in aircraft because they? a. are naturally corrosion resistant so they do not require corrosion resistant materials for protection. b. have surface layers of pure aluminum or aluminum alloy bonded to the core material to inhibit corrosion. c. are highly corrosion resistant because an oxide film forms on their surfaces upon contact with air.

B

(8124)-The monocoque fuselage relies largely on the strength of? a. longerons and formers b. skin or covering c. bulkheads and longerons

B

(8125)-Which part(s) of a semi-monocoque fuselage prevent(s) tension and compression from bending the fuselage? a. ribs and formers b. longerons and stringers c. bulkheads and skin

B

8102. On a semi-monocoque fuselage, the skin is reinforced by longitudinal structural members called; a. beams and struts b. longerons and stringers c. formers and bulkheads

B

(8099)-What is the purpose of a gusset or gusset plate used in the construction and repair of aircraft structures? a. To hold structural members in position temporarily until the permanent attachment has been completed b. To provide access for inspection of structural attachments c. To join and reinforce intersecting structural members.

C

(8116)-Repairs or splices involving stringers on the lower surface of stressed skin metal wings are usually? a. not permitted b. permitted only if the damage does not exceed 6 inches in any direction c. permitted but are normally more critical in reference to strength in tension than similar repairs to the upper surface.

C

(8123)-Parts fabricated from Alclad 2024-T3 aluminum sheet stock must have all; a. bends made with a small radius to develop maximum strength b. bends 90 degrees to the grain c. scratches, kinks, tool marks, nicks etc. held to a minimum.

C

(8170)-You can distinguish between aluminum and aluminum alloy by? a. filing the metal b. testing with an acetic acid solution c. testing with a 10 % solution of caustic soda

C

(8178)-The aluminum alloys used in aircraft construction are usually hardened by which method? a. cold-working b. aging c. heat-treatment

C