Bachelor of Aviation (BAvn) Theoretical Knowledge Examinations — Questions and Answers

Question 1: Which of the following describes an airplane engine type?

Jet (Correct answer)
Diesel
Steam
Electric

Correct answer: Jet

Jet engines are the most common type of engine used in modern commercial and military aircraft due to their ability to generate high thrust efficiently. They operate by expelling a high-velocity jet of hot exhaust gases, providing the necessary propulsion for flight at high speeds and altitudes. This design makes them ideal for powering large aircraft over long distances.

Question 2: Which FAA regulation governs the general operating and flight rules for aviation in the United States?

14 CFR Part 91 (Correct answer)
14 CFR Part 135
49 CFR Part 830
14 CFR Part 61

Correct answer: 14 CFR Part 91

14 CFR Part 91 establishes the general operating and flight rules applicable to all civil aircraft operations in the US National Airspace System.

Question 3: Under 14 CFR Part 91, when is an ELT (Emergency Locator Transmitter) required to be operational?

Only for commercial air carrier operations
Only for IFR flights
Only for overwater operations beyond 50 nm
For most powered civil aircraft used in non-commercial operations (Correct answer)

Correct answer: For most powered civil aircraft used in non-commercial operations

FAR 91.207 requires most civil powered aircraft to carry an operational ELT except in specific circumstances such as training within 50 nm of the departure airport.

Question 4: What is the purpose of a Safety Management System (SMS) in aviation?

A maintenance scheduling software for aircraft
A government database for accident reporting
An automated checklist system for normal procedures
A systematic approach to managing safety risks through proactive hazard identification and mitigation (Correct answer)

Correct answer: A systematic approach to managing safety risks through proactive hazard identification and mitigation

SMS is a formal, organization-wide framework for identifying hazards, assessing risks, and implementing controls before accidents occur, required by the FAA for air carriers.

Question 5: What does the acronym IMSAFE check?

An IFR currency verification tool for pilots
A weather briefing verification sequence
A personal minimums checklist: Illness, Medication, Stress, Alcohol, Fatigue, Emotion (Correct answer)
An aircraft airworthiness checklist for turbine engines

Correct answer: A personal minimums checklist: Illness, Medication, Stress, Alcohol, Fatigue, Emotion

IMSAFE is a personal pre-flight health checklist pilots use to self-assess fitness to fly by evaluating Illness, Medication, Stress, Alcohol, Fatigue, and Emotion.

Question 6: In a runway incursion, which color light gun signal tells a vehicle or aircraft on the ground to stop?

Flashing red
Flashing green
Alternating red and green
Steady red (Correct answer)

Correct answer: Steady red

A steady red light gun signal directed at an aircraft or vehicle on the ground means stop.

Question 7: What does the acronym 'LAHSO' stand for and when is it used?

Landing Approach Hold Short Override; used during ILS approaches
Land and Hold Short Operations; used when two runways intersect and simultaneous operations are needed (Correct answer)
Low Altitude High Speed Operations; used in Class B airspace
Low Altitude Holding and Sequencing Operations; used during approach emergencies

Correct answer: Land and Hold Short Operations; used when two runways intersect and simultaneous operations are needed

LAHSO allows an aircraft to land and hold short of an intersecting runway or taxiway, enabling simultaneous runway use.

Question 8: What does EGPWS add over the original GPWS?

Automatic aircraft control to avoid terrain
A terrain database that provides look-ahead terrain alerting regardless of aircraft configuration (Correct answer)
Louder audio warnings for crew alerts
Weather radar integration for storm avoidance

Correct answer: A terrain database that provides look-ahead terrain alerting regardless of aircraft configuration

Enhanced GPWS (EGPWS) adds a worldwide terrain database and GPS position to generate predictive terrain alerts well in advance, overcoming blind spots in the original reactive GPWS.

Question 9: Under 14 CFR Part 61, what medical certificate is required to exercise private pilot privileges?

A Second-Class Medical Certificate
A First-Class Medical Certificate
A Third-Class Medical Certificate (or BasicMed) (Correct answer)
No medical certificate — self-certification is permitted

Correct answer: A Third-Class Medical Certificate (or BasicMed)

Private pilots must hold at least a Third-Class Medical Certificate, or may use BasicMed under 14 CFR Part 68 as an alternative for non-commercial operations.

Question 10: Under FAA regulations, what is the blood alcohol content (BAC) limit for acting as a pilot in command?

0.00% — any detectable alcohol is prohibited
0.04% or less, with an 8-hour 'bottle to throttle' minimum (Correct answer)
0.08% (same as driving)
0.02% with a 4-hour waiting period

Correct answer: 0.04% or less, with an 8-hour 'bottle to throttle' minimum

FAR 91.17 prohibits acting as a crewmember with a BAC of 0.04% or higher, and requires at least 8 hours between last alcohol consumption and flight.

Question 11: A rapid decompression at high altitude requires pilots to:

Increase cruise altitude to above the weather
Don oxygen masks immediately and initiate an emergency descent (Correct answer)
Maintain current altitude and wait for pressurization to recover
Open a cabin window to equalize pressure

Correct answer: Don oxygen masks immediately and initiate an emergency descent

At altitudes above 25,000 ft, time of useful consciousness after rapid decompression may be less than 15 seconds, requiring immediate oxygen use and emergency descent.

Question 12: What does the term 'approach sequence' refer to in terminal ATC?

The order in which aircraft are cleared for takeoff
The handoff sequence from en route to approach control
The arranged order in which aircraft will be cleared for approach to a runway (Correct answer)
The list of waypoints on a published approach procedure

Correct answer: The arranged order in which aircraft will be cleared for approach to a runway

Approach sequence is the ordered lineup of aircraft destined for the same runway, managed by approach control to optimize flow.

Question 13: Under FAA regulations, how long must maintenance records for an aircraft's major alterations be retained?

Until the next scheduled inspection
For the life of the part plus 5 years
For at least 2 years after the alteration
Indefinitely, or until transferred with the aircraft (Correct answer)

Correct answer: Indefinitely, or until transferred with the aircraft

Per 14 CFR Part 91.417, records of major alterations (Form 337) must be retained and transferred with the aircraft upon sale.

Question 14: When a technician discovers damage that exceeds the limits published in the Structural Repair Manual (SRM), what is the appropriate next step?

Ground the aircraft and refer the damage to engineering for disposition (Correct answer)
Apply the nearest applicable repair scheme and document the deviation
Consult the MEL to defer the repair
Perform the repair and submit a Service Difficulty Report afterward

Correct answer: Ground the aircraft and refer the damage to engineering for disposition

Damage beyond SRM limits requires engineering disposition—either from the manufacturer or an FAA-authorized DER—before any repair is performed.

Question 15: What is the term for the maximum weight at which an aircraft is certified to take off?

Maximum Zero Fuel Weight
Maximum Takeoff Weight (Correct answer)
Operating Empty Weight
Maximum Landing Weight

Correct answer: Maximum Takeoff Weight

Maximum Takeoff Weight (MTOW) is the certified upper limit of aircraft gross weight at the start of the takeoff roll.

Question 16: Which action should a pilot take first when experiencing an engine failure at cruise altitude?

Immediately declare an emergency with ATC
Deploy the emergency parachute
Shut down all remaining engines to conserve fuel
Maintain aircraft control, identify the best glide speed, and follow the emergency checklist (Correct answer)

Correct answer: Maintain aircraft control, identify the best glide speed, and follow the emergency checklist

The primary response to any emergency is always to Aviate (maintain control), Navigate (determine best landing option), then Communicate (contact ATC).

Question 17: What is the purpose of a Minimum Equipment List (MEL)?

To specify the minimum fuel load for a given flight
To list required tools for pre-flight maintenance checks
To outline mandatory survival equipment for overwater flights
To define which aircraft systems may be inoperative while still allowing legal flight operations (Correct answer)

Correct answer: To define which aircraft systems may be inoperative while still allowing legal flight operations

An MEL is an FAA-approved document that allows an operator to dispatch an aircraft with specified inoperative components under defined conditions and limitations.

Question 18: What is the purpose of a 'performance penalty' table in an aircraft flight manual?

To list speed limits by altitude
To calculate turbine temperature margins
To show fuel cost at high altitudes
To quantify performance degradation from specific non-standard conditions like inoperative equipment (Correct answer)

Correct answer: To quantify performance degradation from specific non-standard conditions like inoperative equipment

Performance penalty tables let pilots adjust certified performance data to account for non-standard conditions such as an inoperative anti-ice system.

Question 19: What is the role of the International Civil Aviation Organization (ICAO)?

A trade association for aircraft manufacturers
A US domestic agency regulating commercial airlines
A UN agency that sets international standards and recommended practices for aviation safety, security, and efficiency (Correct answer)
An insurance body for aviation liability

Correct answer: A UN agency that sets international standards and recommended practices for aviation safety, security, and efficiency

ICAO, established by the Chicago Convention of 1944, develops Standards and Recommended Practices (SARPs) that member states implement through their national aviation regulations.

Question 20: What is CAMP's complete form?

Continuous Airworthiness Mileage Program
Continuous Air Maintenance Program
Continuous Airworthiness Maintenance Program (Correct answer)
Continuous Air Mileage Program

Correct answer: Continuous Airworthiness Maintenance Program

CAMP stands for Continuous Airworthiness Maintenance Program. This program is a structured system implemented by aircraft operators to ensure the ongoing airworthiness of their fleet. It involves scheduled inspections, maintenance tasks, and record-keeping to comply with regulatory requirements and maintain the aircraft in a safe and operational condition throughout its service life.

Question 21: What is the primary cause of mountain wave turbulence?

Cold fronts stalling over high terrain
Stable air flowing over a mountain ridge creating downstream oscillations (Correct answer)
Solar heating of mountain slopes
Jet stream acceleration over peaks

Correct answer: Stable air flowing over a mountain ridge creating downstream oscillations

Mountain wave turbulence is caused when stable air crosses a ridge and oscillates in standing waves on the lee side, sometimes with lenticular clouds marking the crests.

Question 22: The jet stream is located near which atmospheric boundary?

The boundary layer
The mesopause
The stratopause
The tropopause (Correct answer)

Correct answer: The tropopause

Jet streams occur near the tropopause where strong temperature gradients between air masses create high-speed wind currents.

Question 23: What is the significance of the 'point of no return' concept in oceanic ATC operations?

The point beyond which an aircraft cannot divert to the departure airport due to fuel (Correct answer)
The fix where radar coverage ends
The midpoint of an oceanic track system
The boundary between two ARTCCs

Correct answer: The point beyond which an aircraft cannot divert to the departure airport due to fuel

Beyond the point of no return, a diversion to the origin airport is no longer fuel-feasible, affecting contingency planning.

Question 24: Which type of airport agreement gives an airline exclusive use of a terminal or gates?

Common Use Agreement
Preferential Use Agreement
Exclusive Use Agreement (Correct answer)
Joint Use Agreement

Correct answer: Exclusive Use Agreement

An Exclusive Use Agreement grants one airline sole rights to specific airport facilities, preventing competitors from using them.

Question 25: Which aviation weather product provides a forecast of sky conditions and visibility at an airport?

SIGMET
TAF (Terminal Aerodrome Forecast) (Correct answer)
METAR
PIREP

Correct answer: TAF (Terminal Aerodrome Forecast)

A TAF provides a scheduled meteorological forecast for the area around an airport, typically covering 24–30 hours.

Question 26: What regulation governs the hours of flight duty and rest requirements for US airline pilots?

14 CFR Part 117 (Flight and Duty Limitations and Rest Requirements for Part 121 operations) (Correct answer)
14 CFR Part 91
14 CFR Part 61
49 CFR Part 395

Correct answer: 14 CFR Part 117 (Flight and Duty Limitations and Rest Requirements for Part 121 operations)

14 CFR Part 117, implemented in 2014, established science-based fatigue rules for commercial airline pilots, including maximum flight time, duty periods, and minimum rest requirements.

Question 27: Which cloud type is associated with severe turbulence, icing, and thunderstorm activity?

Cirrus
Cumulonimbus (Correct answer)
Altostratus
Stratus

Correct answer: Cumulonimbus

Cumulonimbus clouds are vertically developed storm clouds that produce turbulence, icing, lightning, and heavy precipitation.

Question 28: What is a 'handoff' in ATC operations?

The procedure for transferring a flight from IFR to VFR
The transfer of radar identification and control responsibility from one sector or facility to another (Correct answer)
The transfer of flight plan data from the FAA to ICAO
The exchange of weather information between a pilot and FSS

Correct answer: The transfer of radar identification and control responsibility from one sector or facility to another

A handoff transfers both radar identification and communications authority so the receiving controller can assume control seamlessly.

Question 29: What weather phenomenon is indicated by a SIGMET?

Frost on taxiways
Significant meteorological conditions hazardous to all aircraft (Correct answer)
Wind shear below 1,000 ft AGL only
Surface visibility below 3 miles only

Correct answer: Significant meteorological conditions hazardous to all aircraft

A SIGMET (Significant Meteorological Information) warns all aircraft of hazardous weather such as severe turbulence, icing, or volcanic ash.

Question 30: Wind shear at low altitude is most dangerous to aircraft during which phase of flight?

Descent through FL180
Cruise at FL350
Engine start
Takeoff and landing (Correct answer)

Correct answer: Takeoff and landing

Low-level wind shear is most hazardous during takeoff and landing because there is insufficient altitude to recover from sudden airspeed and lift changes.

Question 31: ________ is another name for line maintenance.

Heavy Maintenance (Correct answer)
Electrical Maintenance
Routine Maintenance
General Maintenance

Correct answer: Heavy Maintenance

While line maintenance is often characterized as routine and light, the term 'Heavy Maintenance' can sometimes be used in a broader context to emphasize the critical and substantial nature of all maintenance activities, including those performed on the line. This perspective might group all tasks beyond simple servicing under 'heavy' to highlight the significant engineering and regulatory oversight involved in maintaining aircraft airworthiness, even for quick turnarounds, distinguishing it from purely operational tasks.

Bachelor of Aviation (BAvn) Theoretical Knowledge Examinations

The BAvn theoretical knowledge examinations assess candidates on core aviation science subjects aligned with SACAA (South African Civil Aviation Authority) standards, covering meteorology, air law, navigation, safety procedures, and air traffic control as required for professional pilot qualifications in South Africa.

100

Questions

120 min

Time Limit

75%

To Pass

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