Aircraft Maintenance MCQs

What is the purpose of an aircraft maintenance program?
a) To ensure the aircraft remains in a condition for safe operation
b) To increase the aircraft’s resale value
c) To enhance the aircraft’s performance
d) To improve passenger comfort
Answer: a) To ensure the aircraft remains in a condition for safe operation

What is the primary objective of a pre-flight inspection?
a) To check for any obvious faults or damage before departure
b) To clean the aircraft
c) To update the aircraft’s maintenance log
d) To calibrate onboard instruments
Answer: a) To check for any obvious faults or damage before departure

Which document contains the specific maintenance requirements for an aircraft?
a) Aircraft Maintenance Manual (AMM)
b) Pilot’s Operating Handbook (POH)
c) Aircraft Flight Manual (AFM)
d) Logbook
Answer: a) Aircraft Maintenance Manual (AMM)

What does “AD” stand for in aircraft maintenance?
a) Airworthiness Directive
b) Aircraft Damage
c) Assembly Date
d) Airspeed Difference
Answer: a) Airworthiness Directive

How often are aircraft required to undergo an Annual Inspection?
a) Every 12 calendar months
b) Every 6 months
c) Every 24 months
d) Every 18 months
Answer: a) Every 12 calendar months

What is the function of the “logbook” in aircraft maintenance?
a) To record all maintenance and repair activities performed on the aircraft
b) To document flight hours only
c) To list aircraft equipment
d) To track fuel consumption
Answer: a) To record all maintenance and repair activities performed on the aircraft

What is the purpose of a “service bulletin”?
a) To provide information or instructions for routine maintenance and modifications
b) To report operational issues
c) To track aircraft performance
d) To schedule flight crew training
Answer: a) To provide information or instructions for routine maintenance and modifications

What does “MEL” stand for in the context of aircraft maintenance?
a) Minimum Equipment List
b) Maintenance Evaluation List
c) Major Equipment Log
d) Maintenance and Engineering Log
Answer: a) Minimum Equipment List

Which inspection is typically performed every 100 flight hours?
a) 100-Hour Inspection
b) Annual Inspection
c) Pre-flight Inspection
d) Post-flight Inspection
Answer: a) 100-Hour Inspection

What is a “Phase Inspection”?
a) A type of inspection performed at intervals, often based on a set number of flight hours or cycles
b) An inspection performed annually
c) A random inspection performed during flight
d) A pre-flight check
Answer: a) A type of inspection performed at intervals, often based on a set number of flight hours or cycles

What does “AOG” stand for in aircraft maintenance?
a) Aircraft on Ground
b) Airworthiness Operational Guide
c) Assembly of Gear
d) Aircraft Operating Guide
Answer: a) Aircraft on Ground

Which type of maintenance is classified as “preventive”?
a) Scheduled inspections and servicing to prevent faults
b) Repairing malfunctioning components
c) Replacing broken parts
d) Corrective actions after a failure
Answer: a) Scheduled inspections and servicing to prevent faults

What is the function of the “airworthiness certificate”?
a) To confirm that an aircraft meets safety and performance standards
b) To indicate the aircraft’s fuel capacity
c) To provide a record of the aircraft’s operating history
d) To document the aircraft’s color and design
Answer: a) To confirm that an aircraft meets safety and performance standards

What does “TC” stand for in aircraft maintenance terminology?
a) Type Certificate
b) Technical Certificate
c) Temporary Certificate
d) Training Certificate
Answer: a) Type Certificate

What is a “line maintenance” task?
a) Routine maintenance performed at the airport or on the tarmac
b) Major repairs performed in a hangar
c) Overhaul of engines and systems
d) Complete disassembly and rebuilding of aircraft
Answer: a) Routine maintenance performed at the airport or on the tarmac

Which document would you refer to for detailed procedures on overhauling an engine?
a) Engine Overhaul Manual
b) Aircraft Maintenance Manual (AMM)
c) Pilot’s Operating Handbook (POH)
d) Service Bulletin
Answer: a) Engine Overhaul Manual

What does “BITE” stand for in aircraft maintenance?
a) Built-In Test Equipment
b) Basic Inspection Tools and Equipment
c) Basic Internal Test Equipment
d) Built-In Test Evaluation
Answer: a) Built-In Test Equipment

What is a “work order”?
a) A document that authorizes and describes maintenance or repair tasks to be performed
b) A logbook entry
c) A record of flight hours
d) A manual for aircraft operations
Answer: a) A document that authorizes and describes maintenance or repair tasks to be performed

What is the “TBO” for an engine?
a) Time Between Overhaul
b) Time Before Operation
c) Total Brake Output
d) Time Based Operation
Answer: a) Time Between Overhaul

What does “SOH” stand for in aircraft maintenance?
a) State of Health
b) System of Operation
c) Safety of Hardware
d) Standard Operating Hours
Answer: a) State of Health

What is the “safety wire” used for in aircraft maintenance?
a) To secure fasteners and prevent them from loosening
b) To connect electrical components
c) To provide a ground connection
d) To support structural elements
Answer: a) To secure fasteners and prevent them from loosening

Which maintenance task is typically performed by a licensed mechanic?
a) Major repairs and overhauls
b) Routine cleaning of the aircraft
c) Basic visual inspections
d) Refueling the aircraft
Answer: a) Major repairs and overhauls

What is the “purpose of a visual inspection”?
a) To identify obvious signs of wear, damage, or malfunction
b) To perform detailed measurements and tests
c) To check aircraft performance during flight
d) To calibrate onboard instruments
Answer: a) To identify obvious signs of wear, damage, or malfunction

What is an “airframe”?
a) The structural components of the aircraft excluding the engine
b) The engine assembly of the aircraft
c) The cockpit and avionics system
d) The landing gear system
Answer: a) The structural components of the aircraft excluding the engine

What does “non-destructive testing” involve?
a) Testing methods that do not damage or alter the component being tested
b) Testing that results in the destruction of the part
c) Methods used to test for fuel leaks
d) Techniques for testing electronic systems
Answer: a) Testing methods that do not damage or alter the component being tested

What is “component overhaul”?
a) The process of disassembling, repairing, and reassembling a component to restore it to serviceable condition
b) The cleaning of aircraft parts
c) The replacement of a component with a new one
d) The routine inspection of aircraft components
Answer: a) The process of disassembling, repairing, and reassembling a component to restore it to serviceable condition

What is the “purpose of an oil analysis”?
a) To detect contamination, wear particles, and oil condition in an engine
b) To measure fuel consumption
c) To check for leaks in the fuel system
d) To inspect the aircraft’s hydraulic system
Answer: a) To detect contamination, wear particles, and oil condition in an engine

What is “hydraulic fluid” used for in aircraft systems?
a) To operate hydraulic systems such as landing gear, flaps, and brakes
b) To cool the aircraft engine
c) To lubricate the engine components
d) To fuel the aircraft
Answer: a) To operate hydraulic systems such as landing gear, flaps, and brakes

What is a “fuel system check”?
a) A procedure to ensure the fuel system is free from leaks and functioning properly
b) A test to measure fuel efficiency
c) A check to verify fuel quality and quantity
d) An inspection of the aircraft’s electrical system
Answer: a) A procedure to ensure the fuel system is free from leaks and functioning properly

What is a “vibration analysis” used for?
a) To detect and diagnose issues with rotating components and engines
b) To measure aircraft speed
c) To analyze fuel consumption patterns
d) To assess cabin noise levels
Answer: a) To detect and diagnose issues with rotating components and engines

What does “TAT” stand for in the context of aircraft maintenance?
a) Turn-Around Time
b) Total Air Temperature
c) Time After Takeoff
d) Time At Terminal
Answer: b) Total Air Temperature

What is the purpose of a “maintenance logbook”?
a) To record all maintenance and repair activities performed on the aircraft
b) To document daily flight hours
c) To track aircraft fuel levels
d) To list passenger details
Answer: a) To record all maintenance and repair activities performed on the aircraft

What is the role of a “maintenance technician”?
a) To perform inspections, repairs, and routine maintenance on aircraft
b) To pilot the aircraft during flights
c) To manage flight schedules
d) To design aircraft systems
Answer: a) To perform inspections, repairs, and routine maintenance on aircraft

What is “corrective maintenance”?
a) Maintenance performed to correct identified faults or defects
b) Scheduled routine inspections
c) Preventive measures to avoid future faults
d) Routine cleaning and servicing
Answer: a) Maintenance performed to correct identified faults or defects

What does “STC” stand for in aircraft maintenance?
a) Supplemental Type Certificate
b) Standard Test Certification
c) Safety Test Certificate
d) System Technical Certificate
Answer: a) Supplemental Type Certificate

What is “preventive maintenance”?
a) Maintenance performed to prevent potential problems and ensure reliability
b) Repairing components after they fail
c) Overhauling major aircraft systems
d) Cleaning the aircraft
Answer: a) Maintenance performed to prevent potential problems and ensure reliability

What is the “purpose of a maintenance check” in aviation?
a) To ensure that the aircraft operates within its safety and performance limits
b) To update the aircraft’s navigation systems
c) To monitor the aircraft’s fuel consumption
d) To improve cabin comfort
Answer: a) To ensure that the aircraft operates within its safety and performance limits

What is “preventive maintenance schedule”?
a) A plan outlining regular maintenance tasks to prevent failures
b) A list of emergency repair procedures
c) A schedule for pilot training
d) A timeline for aircraft redesign
Answer: a) A plan outlining regular maintenance tasks to prevent failures

What is a “troubleshooting procedure”?
a) A systematic approach to identify and resolve malfunctions or issues
b) A routine check for aircraft cleanliness
c) A process for calibrating flight instruments
d) A method for updating aircraft software
Answer: a) A systematic approach to identify and resolve malfunctions or issues

What does “CAMO” stand for?
a) Continuing Airworthiness Management Organization
b) Civil Aircraft Maintenance Office
c) Commercial Aircraft Management Operation
d) Certified Aircraft Maintenance Operator
Answer: a) Continuing Airworthiness Management Organization

What is “aircraft overhaul”?
a) A comprehensive and detailed examination and repair of aircraft systems and components
b) A routine cleaning and servicing
c) A pre-flight inspection
d) A minor repair of damaged parts
Answer: a) A comprehensive and detailed examination and repair of aircraft systems and components

What is a “compliance check”?
a) Verification that all maintenance activities are performed according to regulations and standards
b) Checking for aircraft performance
c) Inspecting the cabin for comfort
d) Updating the aircraft’s software
Answer: a) Verification that all maintenance activities are performed according to regulations and standards

What is “line replaceable unit” (LRU)?
a) A component that can be replaced quickly and easily on the line without extensive workshop procedures
b) A major engine component
c) A structural part of the aircraft
d) A non-repairable component
Answer: a) A component that can be replaced quickly and easily on the line without extensive workshop procedures

What is a “service check”?
a) An inspection or maintenance task performed at regular intervals to ensure the aircraft remains in serviceable condition
b) A check for compliance with safety regulations
c) A test of the aircraft’s flight performance
d) A review of the aircraft’s technical specifications
Answer: a) An inspection or maintenance task performed at regular intervals to ensure the aircraft remains in serviceable condition

What is “aircraft corrosion prevention”?
a) Measures taken to protect aircraft from damage due to corrosion and deterioration
b) Routine cleaning of the aircraft
c) Calibration of aircraft instruments
d) Checking the fuel system for leaks
Answer: a) Measures taken to protect aircraft from damage due to corrosion and deterioration

What is a “maintenance release”?
a) A certification that the aircraft is safe to return to service after maintenance
b) A document for requesting parts
c) A report on fuel efficiency
d) A log entry for completed flights
Answer: a) A certification that the aircraft is safe to return to service after maintenance

What is “scheduled maintenance”?
a) Maintenance that is planned and carried out at predetermined intervals
b) Maintenance performed on an as-needed basis
c) Emergency repairs due to unexpected failures
d) Cleaning and cosmetic enhancements
Answer: a) Maintenance that is planned and carried out at predetermined intervals

What does “MTBUR” stand for?
a) Mean Time Between Unscheduled Repairs
b) Minimum Time Between Unscheduled Repairs
c) Maximum Time Before Unscheduled Repairs
d) Mean Time Between Unscheduled Repairs
Answer: a) Mean Time Between Unscheduled Repairs

What is “runway rubber removal”?
a) The process of removing rubber buildup from the runway surface to maintain safety and performance
b) Cleaning of the aircraft tires
c) Removing rubber residue from the landing gear
d) Replacing worn-out runway markings
Answer: a) The process of removing rubber buildup from the runway surface to maintain safety and performance

What is a “maintenance interval”?
a) The time period between scheduled maintenance tasks
b) The duration of an aircraft’s flight
c) The time between refueling stops
d) The period of time between aircraft overhauls
Answer: a) The time period between scheduled maintenance tasks

 

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