TradeExamPro › Aviation › Aviation mechanic General
13 questions from the aviation mechanic general practice test.
10 questions, graded as you go, with the reason for every answer. No sign-up.
Which type of drawing gives all the information needed to make a single part?
B. Detail drawing
A detail drawing describes one part completely: shape, size, material and finish. An assembly drawing shows how two or more parts go together and usually leaves out the information needed to make each one.
Reference: FAA-H-8083-30, Aircraft Drawings (types of drawings)
Which drawing is most useful for tracing the flow in a hydraulic system while troubleshooting?
C. Schematic diagram
A schematic shows the components of a system and how they relate functionally without regard to their physical location, which is what a troubleshooter needs. An installation drawing shows where parts mount on the aircraft, not how the system works.
Reference: FAA-H-8083-30, Aircraft Drawings (diagrams)
A dimension is given as 1.250 ± 0.005 in. What is the largest acceptable size of the part?
D. 1.255 in
The plus tolerance is added to the basic dimension: 1.250 + 0.005 = 1.255 in. The total tolerance band is 0.010 in, but that is the spread between limits and is not added to the nominal size.
Reference: FAA-H-8083-30, Aircraft Drawings (dimensioning; tolerances)