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AMG · 8% of the exam

Aircraft Drawings practice questions

10 free Aircraft Drawings questions for the Aviation Mechanic General (AMG) Knowledge Test exam, each with the correct answer and an explanation for every option.

Start the questionsFree 10-question AMG quiz

What this domain covers

Reading and using aircraft drawings, charts and diagrams.

Exam weight
8%
On a real exam
≈ 5 questions
In our bank
48 questions

Topics that come up most

  • Drawing types and views
  • Lines, symbols and dimensions
  • Schematic and wiring diagrams
  • Charts and graphs
  • Sketching repairs

How to study it

Work through the test supplement figures; interpretation improves quickly with practice.

Sample Aircraft Drawings questions

Try each one before opening the answer. Original questions written to the official exam objectives.

  1. Question 1

    On an aircraft drawing, what does a thick, solid continuous line represent?

    • AEdges hidden behind other surfaces
    • BThe visible edges and outline of the object
    • CThe center of a hole or symmetrical part
    • DAn alternate position of a moving part
    Show answer and explanation

    Answer: B) The visible edges and outline of the object

    • AIncorrect. Hidden edges are drawn with short dashes.
    • BCorrect. Visible (object) lines are the heaviest lines on a drawing.
    • CIncorrect. Center lines use alternating long and short dashes.
    • DIncorrect. Alternate positions use phantom lines.

  2. Question 2

    What does "REF" after a dimension on a drawing mean?

    • AA reference dimension, not used for inspection
    • BIt is the most critical dimension
    • CThe part must be referred to engineering before use
    • DIt is a revision number
    Show answer and explanation

    Answer: A) A reference dimension, not used for inspection

    • ACorrect. Reference dimensions are derived and not toleranced.
    • BIncorrect. REF dimensions are informational.
    • CIncorrect. REF does not require referral.
    • DIncorrect. Revisions are in the revision block.

  3. Question 3

    What is a schematic diagram mainly used to show?

    • AHow a system works
    • BThe exact physical shape
    • CThe paint colors
    • DThe rivet pattern
    Show answer and explanation

    Answer: A) How a system works

    • ACorrect. Schematics show components and their connections to explain operation.
    • BIncorrect. Schematics are not to scale.
    • CIncorrect. This is unrelated.
    • DIncorrect. Structural drawings show that.

  4. Question 4

    A technician is troubleshooting an aircraft electrical system. Which information is normally found on a wiring diagram but not on a block diagram of the same system?

    • AEach major unit drawn as a simple box labeled with its general function
    • BWire sizes and identification numbers, connectors, and splices
    • CA cutaway pictorial view of the internal parts of each component
    • DThe general direction of signal or power flow between major units
    Show answer and explanation

    Answer: B) Wire sizes and identification numbers, connectors, and splices

    Block diagrams show a system's major units and how they relate in general terms. Wiring diagrams add the wire-level detail needed for troubleshooting and repair, such as wire sizes and numbers, connectors and splices.

    • AIncorrect. This is what a block diagram shows: a simplified picture of the major units and what they do.
    • BCorrect. A wiring diagram gives the detail needed to trace and repair the actual wiring, such as wire size and ID numbers, connectors, terminals and splices.
    • CIncorrect. Internal construction is shown on cutaway or pictorial drawings, not on wiring diagrams.
    • DIncorrect. A block diagram already shows the general flow between major units, so this does not set a wiring diagram apart.

  5. Question 5

    On a drawing, what does the symbol Ø in front of a dimension mean?

    • ADiameter
    • BRadius
    • CZero tolerance
    • DOptional feature
    Show answer and explanation

    Answer: A) Diameter

    • ACorrect. Ø identifies a diameter dimension.
    • BIncorrect. Radius is shown with the letter R.
    • CIncorrect. Ø is a diameter symbol.
    • DIncorrect. Ø does not mark optional features.

  6. Question 6

    A drawing dimension reads 1.500 ± 0.005 inch. What is the acceptable range?

    • A1.500 to 1.505 inches only
    • B1.450 to 1.550 inches
    • C1.495 to 1.505 inches
    • D1.495 to 1.500 inches only
    Show answer and explanation

    Answer: C) 1.495 to 1.505 inches

    • AIncorrect. A ± tolerance allows both directions.
    • BIncorrect. This uses 0.05, not 0.005.
    • CCorrect. Subtract and add the tolerance: 1.500 − 0.005 and 1.500 + 0.005.
    • DIncorrect. A ± tolerance allows both directions.

  7. Question 7

    What does a drawing's revision block show?

    • AThe parts list
    • BDrawing changes
    • CThe drawing's scale
    • DHidden edges
    Show answer and explanation

    Answer: B) Drawing changes

    • AIncorrect. That is the bill of materials.
    • BCorrect. The revision block records changes, dates and approvals.
    • CIncorrect. Scale is in the title block.
    • DIncorrect. Lines show edges.

  8. Question 8

    On an electrical schematic, what does a zigzag line usually represent?

    • AA capacitor
    • BA resistor
    • CA ground connection
    • DA battery
    Show answer and explanation

    Answer: B) A resistor

    • AIncorrect. A capacitor is shown as two parallel plates.
    • BCorrect. The zigzag is the standard resistor symbol.
    • CIncorrect. Ground is shown with stacked horizontal lines.
    • DIncorrect. A battery is shown with long and short parallel lines.

  9. Question 9

    Which type of drawing shows an object's three-dimensional shape in a single view?

    • ABlock diagram
    • BOrthographic projection
    • CIsometric (pictorial)
    • DSchematic
    Show answer and explanation

    Answer: C) Isometric (pictorial)

    • AIncorrect. Block diagrams show system functions, not shape.
    • BIncorrect. Orthographic drawings show separate flat views.
    • CCorrect. Pictorial drawings such as isometric views show three dimensions in one view.
    • DIncorrect. Schematics show circuit or system connections.

  10. Question 10

    On aircraft station diagrams, what does a waterline (WL) measure?

    • ADistance aft of the nose datum
    • BHeight above or below a horizontal reference plane
    • CDistance left or right of the centerline
    • DThe depth of fuel in the tanks
    Show answer and explanation

    Answer: B) Height above or below a horizontal reference plane

    • AIncorrect. Fore-and-aft location is given by fuselage stations.
    • BCorrect. Waterlines give vertical location in inches from a reference plane.
    • CIncorrect. Lateral location is given by butt lines.
    • DIncorrect. Waterlines are location references, not fuel levels.

Aircraft Drawings: FAQs

How much of the AMG exam is Aircraft Drawings?

Aircraft Drawings is 8% of the AMG exam by the official exam guide's weighting, which on a 60-question form works out to roughly 5 questions. The real exam's exact split varies by form.

What does the Aircraft Drawings domain cover?

Reading and using aircraft drawings, charts and diagrams.

How should I study Aircraft Drawings for AMG?

Work through the test supplement figures; interpretation improves quickly with practice.

Where can I practise more Aircraft Drawings questions?

This page has 10 free Aircraft Drawings questions with answers. The ExamWize AMG question bank has 48 questions in this domain. Every practice exam result breaks your score down by domain, and Review Mode re-drills the questions you missed.

Other AMG topics

Also: 15 free questions across all topics, the AMG cheat sheet and the study guide.

Get Aircraft Drawings exam-ready

The full AMG bank has 48 Aircraft Drawings questions. Timed practice exams match the real exam's length and domain weights, every result shows your score per domain, and Review Mode re-drills the questions you missed.

See the full AMG practice examsTake the free diagnostic

Not affiliated with FAA; questions are original, written from the official exam outline, and never copied from the real exam.