CPL250 FINAL EXAMINATION QUESTIONS WITH ANSWERS
2025 GRADED A+
✔✔Where a MEL has been approved for an operator of an aircraft and equipment on
that list becomes unserviceable - ✔✔takeoff is allowed if the aircraft is operated in
accordance with any conditions stated in the MEL
✔✔Average cabin pressure altitude is 11 000 feet ASL and the aircraft type certificate
allows for flight above FL250.
What is the oxygen requirements for an emergency descent from 20 000 feet ASL for
45 minutes following a depressurization of a pressurized aircraft operated in an air
transport service with 20 passengers? - ✔✔In this question there are a few points to
consider...
1. The aircraft is pressurized so we are looking at the table (Slide 20) for pressurized
aircraft.
2. The aircraft is used in an air transport service and so we cannot have less than 30
minutes supply of oxygen. We must know if the aircraft's type certificate allows it to fly at
altitudes exceeding FL250 and if so the crew must have at least 2 hours supply.
3. With cabin pressure altitude of 11 000 feet we require oxygen for the entire duration
of flight exceeding 30 minutes between 10 000 and 13 000 feet for the crew and 10% of
the passengers. This is 45 minutes for the 2 passengers.
The correct answer is: Oxygen for 45 minutes for 2 passengers and 2 hours for all crew
members.
✔✔What are the requirements for an aerial work service or an air taxi service carrying
an external load such as a banner, mounted photography equipment, or a canoe? -
✔✔It must be authorized in a supplemental type certificate or in an airworthiness
approval
✔✔When operating in an air taxi service which is true - ✔✔An aeroplane must be at
least 1 000 feet above any obstacle within a 3 mile radius at night
✔✔When operating in an air taxi or aerial work service which is true? - ✔✔A. A crop
duster is not allowed to disperse product at night unless authorized in AOC.
B. An aerial work operator shall not operate a single engine aircraft at night in VFR OTT
or IFR unless authorized in AOC.
C. VFR OTT must be specifically authorized in the AOC for an air taxi service.
,✔✔Which is true with regards to air taxi and aerial work services? - ✔✔The COM must
be in each aircraft or given to each crew member and the SOP must be in each aircraft
✔✔When flying NORDO in a control zone a steady green light directed to an aircraft in
the air means . . . . . and on the ground means . . . . . - ✔✔cleared to land, cleared to
takeoff.
✔✔What could occur if a pilot uses too low of an octane rating? - ✔✔Detonation.
✔✔It is true with respect to a free turbine engine that - ✔✔the power turbine and the
compressor are mechanically free from each other
Free turbines for helicopters also gives the advantage of not needing a clutch.
✔✔With regards to a normally aspirated engine, as density altitude increases the power
output - ✔✔decreases
✔✔What is the purpose of dual ignition? - ✔✔If one magneto fails there will not be a
complete engine failure.
✔✔Carburetor icing can occur under what conditions? - ✔✔Moist air with temperature
between -5°C and +30°C whether in clear air or in visible moisture.
✔✔With respect to carburetor icing - ✔✔partial heat should be used only when an
aircraft has a carburetor air temperature gauge.
✔✔What could happen if a pilot uses an oil in the engine with too low of a viscosity? -
✔✔Low oil pressure and greater difficulty in maintaining oil film between moving parts
✔✔With regards to maneuvering an aircraft in a turn - ✔✔centrifugal force which acts
towards the outside of the turn acts opposite to centripetal force which acts towards the
inside of the turn.
B. as bank angle increases load factor and stall speed increase.
C. in a constant bank turn as airspeed increases radius increases and rate of turn
decreases, load factor and stall speed remains the same.
✔✔A 90 degree cross-component of wind velocity, demonstrated to be safe for taxiing,
takeoff, and landing must be established and must be not less than 0.2 Vso.
The maximum crosswind component based on stall speed alone is 20% of the stalling
speed. This is 11 KT. The situation presented puts the wind 40° off the runway. Reading
, 11 KT from the bottom of the graph up to the 40° angle. Then following the arc to the
headwind component reads 17 KT. - ✔✔
✔✔In regard to wing tip vortices - ✔✔wing fences and winglets are used to lessen
vortices.
✔✔What will happen to the pitch of a propeller if oil pressure is lost in a constant-speed
full-feathering propeller that uses counterweights? - ✔✔It will go to full coarse and
feather.
✔✔If the airspeed increases while in a descent and the altimeter remains the same the -
✔✔static port has been fully blocked
✔✔If an aircraft is accelerated on a heading of north the magnetic compass - ✔✔will
remain on north
✔✔While on normal approach for a runway with a 3-bar VASIS light system it should
indicate - ✔✔. red on the upwind, red on the middle, and white on the downwind
✔✔Which is true with regards to illusions on approach? - ✔✔An up sloping runway
gives the illusion of being too high, thus the pilot may undershoot.
✔✔The ICAO standard atmosphere assumes - ✔✔dry air, MSL pressure of 29.92 in Hg,
MSL temperature of 15°C, and a lapse rate of 1.98°C per 1 000 feet.
✔✔It is true that an inversion - ✔✔is temperature increasing with altitude and is
characterized by poor low level visibility.
✔✔1. Convection
2. Advection
3. Mechanical turbulence
4. Convergence
5. Divergence
6. Subsidence
Which are a lifting agent? - ✔✔Convection
Mechanical turbulence
Convergence
✔✔When does an increased performance wind shear occur? - ✔✔When a light
headwind becomes a stronger headwind.
✔✔If there is a strong flow of air over hilly or mountainous terrain - ✔✔stable air flow will
be smooth with little turbulence but with a lot of vertical shear.
2025 GRADED A+
✔✔Where a MEL has been approved for an operator of an aircraft and equipment on
that list becomes unserviceable - ✔✔takeoff is allowed if the aircraft is operated in
accordance with any conditions stated in the MEL
✔✔Average cabin pressure altitude is 11 000 feet ASL and the aircraft type certificate
allows for flight above FL250.
What is the oxygen requirements for an emergency descent from 20 000 feet ASL for
45 minutes following a depressurization of a pressurized aircraft operated in an air
transport service with 20 passengers? - ✔✔In this question there are a few points to
consider...
1. The aircraft is pressurized so we are looking at the table (Slide 20) for pressurized
aircraft.
2. The aircraft is used in an air transport service and so we cannot have less than 30
minutes supply of oxygen. We must know if the aircraft's type certificate allows it to fly at
altitudes exceeding FL250 and if so the crew must have at least 2 hours supply.
3. With cabin pressure altitude of 11 000 feet we require oxygen for the entire duration
of flight exceeding 30 minutes between 10 000 and 13 000 feet for the crew and 10% of
the passengers. This is 45 minutes for the 2 passengers.
The correct answer is: Oxygen for 45 minutes for 2 passengers and 2 hours for all crew
members.
✔✔What are the requirements for an aerial work service or an air taxi service carrying
an external load such as a banner, mounted photography equipment, or a canoe? -
✔✔It must be authorized in a supplemental type certificate or in an airworthiness
approval
✔✔When operating in an air taxi service which is true - ✔✔An aeroplane must be at
least 1 000 feet above any obstacle within a 3 mile radius at night
✔✔When operating in an air taxi or aerial work service which is true? - ✔✔A. A crop
duster is not allowed to disperse product at night unless authorized in AOC.
B. An aerial work operator shall not operate a single engine aircraft at night in VFR OTT
or IFR unless authorized in AOC.
C. VFR OTT must be specifically authorized in the AOC for an air taxi service.
,✔✔Which is true with regards to air taxi and aerial work services? - ✔✔The COM must
be in each aircraft or given to each crew member and the SOP must be in each aircraft
✔✔When flying NORDO in a control zone a steady green light directed to an aircraft in
the air means . . . . . and on the ground means . . . . . - ✔✔cleared to land, cleared to
takeoff.
✔✔What could occur if a pilot uses too low of an octane rating? - ✔✔Detonation.
✔✔It is true with respect to a free turbine engine that - ✔✔the power turbine and the
compressor are mechanically free from each other
Free turbines for helicopters also gives the advantage of not needing a clutch.
✔✔With regards to a normally aspirated engine, as density altitude increases the power
output - ✔✔decreases
✔✔What is the purpose of dual ignition? - ✔✔If one magneto fails there will not be a
complete engine failure.
✔✔Carburetor icing can occur under what conditions? - ✔✔Moist air with temperature
between -5°C and +30°C whether in clear air or in visible moisture.
✔✔With respect to carburetor icing - ✔✔partial heat should be used only when an
aircraft has a carburetor air temperature gauge.
✔✔What could happen if a pilot uses an oil in the engine with too low of a viscosity? -
✔✔Low oil pressure and greater difficulty in maintaining oil film between moving parts
✔✔With regards to maneuvering an aircraft in a turn - ✔✔centrifugal force which acts
towards the outside of the turn acts opposite to centripetal force which acts towards the
inside of the turn.
B. as bank angle increases load factor and stall speed increase.
C. in a constant bank turn as airspeed increases radius increases and rate of turn
decreases, load factor and stall speed remains the same.
✔✔A 90 degree cross-component of wind velocity, demonstrated to be safe for taxiing,
takeoff, and landing must be established and must be not less than 0.2 Vso.
The maximum crosswind component based on stall speed alone is 20% of the stalling
speed. This is 11 KT. The situation presented puts the wind 40° off the runway. Reading
, 11 KT from the bottom of the graph up to the 40° angle. Then following the arc to the
headwind component reads 17 KT. - ✔✔
✔✔In regard to wing tip vortices - ✔✔wing fences and winglets are used to lessen
vortices.
✔✔What will happen to the pitch of a propeller if oil pressure is lost in a constant-speed
full-feathering propeller that uses counterweights? - ✔✔It will go to full coarse and
feather.
✔✔If the airspeed increases while in a descent and the altimeter remains the same the -
✔✔static port has been fully blocked
✔✔If an aircraft is accelerated on a heading of north the magnetic compass - ✔✔will
remain on north
✔✔While on normal approach for a runway with a 3-bar VASIS light system it should
indicate - ✔✔. red on the upwind, red on the middle, and white on the downwind
✔✔Which is true with regards to illusions on approach? - ✔✔An up sloping runway
gives the illusion of being too high, thus the pilot may undershoot.
✔✔The ICAO standard atmosphere assumes - ✔✔dry air, MSL pressure of 29.92 in Hg,
MSL temperature of 15°C, and a lapse rate of 1.98°C per 1 000 feet.
✔✔It is true that an inversion - ✔✔is temperature increasing with altitude and is
characterized by poor low level visibility.
✔✔1. Convection
2. Advection
3. Mechanical turbulence
4. Convergence
5. Divergence
6. Subsidence
Which are a lifting agent? - ✔✔Convection
Mechanical turbulence
Convergence
✔✔When does an increased performance wind shear occur? - ✔✔When a light
headwind becomes a stronger headwind.
✔✔If there is a strong flow of air over hilly or mountainous terrain - ✔✔stable air flow will
be smooth with little turbulence but with a lot of vertical shear.
