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General Examination Practice Questions

Class notes Jan 3, 2026 ★★★★☆ (4.0/5)
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Illinois Aviation Maintenance Technician General Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

1. The purpose of a red hydraulic system indicator light is to:

  • Indicate low hydraulic fluid level
  • Indicate normal system operation
  • Warn of hydraulic system failure or low pressure
  • Signal high hydraulic pressure

Rationale: A red hydraulic system light is a warning that the system

has failed or pressure is critically low.

2. The purpose of a magneto in an aircraft engine is to:

  • Control fuel mixture
  • Provide ignition independent of the battery
  • Regulate engine temperature 1 / 4
  • Measure engine RPM

Rationale: Magnetos generate electrical spark for ignition

independently of the battery, essential for engine operation.

3. The term “service ceiling” refers to:

  • Maximum speed of an aircraft
  • Maximum range
  • Maximum altitude at which the aircraft can maintain a specified
  • rate of climb

  • Height above the ground during takeoff

Rationale: The service ceiling is defined as the altitude where the

aircraft can maintain a minimum climb rate, typically 100 ft/min.

  • What is the primary purpose of an aircraft aileron?
  • Control pitch
  • Control roll
  • Control yaw
  • Reduce drag

Rationale: Ailerons are hinged surfaces on the wing that control the

aircraft’s roll about its longitudinal axis.

  • A typical reciprocating aircraft engine uses which type of valve timing
  • system?

  • Hydraulic
  • Camless
  • Camshaft and pushrod 2 / 4
  • Electronic

Rationale: Reciprocating engines use a camshaft-driven system to

open and close intake and exhaust valves at precise times.

  • In a constant-speed propeller, the propeller governor is responsible

for:

  • Changing engine RPM
  • Adjusting fuel mixture
  • Adjusting blade pitch to maintain selected RPM
  • Regulating oil temperature

Rationale: The governor adjusts blade angle automatically to

maintain a constant engine RPM despite varying loads.

  • What is the main purpose of the aircraft pitot-static system?
  • Measure engine RPM
  • Measure airspeed, altitude, and vertical speed
  • Control fuel flow
  • Regulate cabin pressure

Rationale: The pitot-static system provides pressure readings to

instruments like the airspeed indicator, altimeter, and vertical speed indicator.

8. The term “critical angle of attack” refers to:

  • Maximum bank angle
  • Maximum climb angle
  • Angle of attack at which the wing stalls 3 / 4
  • Angle at takeoff rotation

Rationale: Exceeding the critical angle of attack causes airflow

separation and a stall.

9. A wing flap extended during landing primarily:

  • Increases speed
  • Increases lift and drag
  • Reduces lift
  • Reduces drag

Rationale: Flaps increase the wing’s lift coefficient at lower speeds

but also increase drag to allow a safer landing approach.

  • Which type of corrosion appears as a white powdery substance
  • on aluminum surfaces?

  • Galvanic
  • Pitting
  • Intergranular
  • Oxidation (aluminum oxide)

Rationale: Aluminum forms a white, powdery oxide when exposed to

moisture and air, a common form of corrosion.

  • When inspecting an aircraft for cracks, which type of inspection
  • is typically used?

  • Functional
  • Visual and non-destructive testing (NDT)
  • Operational
  • / 4

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Category: Class notes
Added: Jan 3, 2026
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Illinois Aviation Maintenance Technician General Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf 1. The purpose of a red hydrau...

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