Certification Exam Practice Questions

Aviation Ground Support Technician Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary function of ground power units (GPU) at an

airport?

• Refuel aircraft
• Provide electrical power to aircraft while on the ground
• Load baggage onto aircraft
• De-ice aircraft

Rationale: GPUs supply electrical power to aircraft on the ground

when engines are not running, preventing battery drain and allowing systems to operate. 1 / 4

• Which personal protective equipment (PPE) is essential when

operating a baggage conveyor belt?

• Safety glasses only
• Earplugs only
• Gloves, safety glasses, and high-visibility clothing
• Hard hat only

Rationale: Operating baggage conveyors requires protection against

pinch points, noise, and visibility hazards.

• What is the correct procedure if a fuel spill occurs on the ramp?
• Wipe it with a cloth and continue operations
• Ignore it if small
• Stop fueling, secure the area, and notify the appropriate

personnel

• Dilute it with water

Rationale: Fuel spills are a fire and slip hazard; immediate

containment and notification are mandatory.

• Which type of tug is commonly used to tow large commercial aircraft?
• Pushback tractor
• Belt loader
• Aircraft tow tractor
• Fuel truck

Rationale: Aircraft tow tractors are designed to move aircraft safely

on the ramp. 2 / 4

• What is the maximum slope a pushback tractor can safely operate on?
• 5%

B) 10%

• Depends on manufacturer specifications

D) 20%

Rationale: Pushback tractor operation limits vary by model; always

follow manufacturer guidelines.

• When performing a visual inspection of a GPU, which item should be

checked first?

• Tire pressure
• Electrical connections
• Fuel level
• Operator manual

Rationale: Ensuring electrical connections are secure prevents power

interruptions and hazards.

• Which color cone is typically used to mark the nose wheel of an

aircraft?

• Red
• Blue
• Orange
• Green

Rationale: Orange cones are standard for nose wheel guidance on

the ramp. 3 / 4

• What is the main hazard associated with jet blast on the ramp?
• Fire only
• Noise only
• Physical injury and property damage
• Slippery surfaces

Rationale: Jet blast can knock personnel over, propel objects, and

damage equipment.

• Which maintenance check is required daily for air start units?
• Oil replacement
• Engine overhaul
• Visual inspection and fluid levels check
• Electrical rewiring

Rationale: Daily checks ensure the unit is ready and safe for

operation.

• What is the correct distance to maintain from operating aircraft

engines?

• 5 feet
• 25 feet or as specified by airline safety procedures
• 50 feet
• 100 feet

Rationale: Maintaining a safe distance protects personnel from

suction and jet blast hazards.

• / 4