11.5 A Instrument Systems Flashcards
(75 cards)
What are the five types of aircraft instrumentation?
a) Pressure instruments, Gyroscopic instruments, Compasses, Mechanical indicators, Electronic instruments
b) Pressure instruments, Hydraulic instruments, Compasses, Mechanical indicators, Electronic instruments
c) Pressure instruments, Gyroscopic instruments, Radar systems, Mechanical indicators, Electronic instruments
a) Pressure instruments, Gyroscopic instruments, Compasses, Mechanical indicators, Electronic instruments
Which instruments are part of the Basic T?
a) Airspeed Indicator (ASI), Attitude Directional Indicator (ADI), Altimeter, Horizontal Situation Indicator (HSI)
b) Vertical Speed Indicator, Attitude Directional Indicator, Altimeter, Radar Altimeter
c) Airspeed Indicator, Vertical Speed Indicator, Compass, Radar Altimeter
a) Airspeed Indicator (ASI), Attitude Directional Indicator (ADI), Altimeter, Horizontal Situation Indicator (HSI)
What is the function of the Airspeed Indicator (ASI)?
a) Shows altitude above sea level
b) Shows speed relevant to aerodynamic parameters like lift and drag
c) Shows direction relative to magnetic north
b) Shows speed relevant to aerodynamic parameters like lift and drag
What does the Attitude Directional Indicator (ADI) show?
a) Roll and pitch attitude relative to the horizon
b) Altitude above the airport
c) Vertical speed
a) Roll and pitch attitude relative to the horizon
What is the function of the Altimeter?
a) Displays speed of the aircraft
b) Displays altitude above sea level or airport based on barometric pressure
c) Displays aircraft heading
b) Displays altitude above sea level or airport based on barometric pressure
What does the Horizontal Situation Indicator (HSI) indicate?
a) Vertical speed
b) Roll and pitch attitude
c) Direction of the aircraft’s longitudinal axis relative to magnetic north
c) Direction of the aircraft’s longitudinal axis relative to magnetic north
Who was the pitot tube named after?
a) Louis Pasteur
b) Henri Pitot
c) Alexander Graham Bell
b) Henri Pitot
Which instruments need static pressure to indicate correct values?
a) Altimeter, ASI, and VSI
b) Altimeter, ADI, and HSI
c) ASI, ADI, and Compass
a) Altimeter, ASI, and VSI
What is the static port?
a) A perforated metal plate allowing outside static air pressure to enter the static line
b) A tube that measures dynamic air pressure
c) A sensor that detects temperature changes
a) A perforated metal plate allowing outside static air pressure to enter the static line
Where are static ports located?
a) In areas with turbulent airflow
b) In areas with smooth airflow to allow undisturbed static pressure measurement
c) Near the engine exhaust
b) In areas with smooth airflow to allow undisturbed static pressure measurement
Why must the static port area always be kept clean and smooth?
a) To prevent disturbance of airflow and ensure correct indications
b) To reduce drag on the aircraft
c) To prevent ice buildup
a) To prevent disturbance of airflow and ensure correct indications
Why must static ports be protected by a cover during aircraft washing or repainting?
a) To prevent water from entering the cabin
b) To prevent the holes from becoming blocked
c) To improve aircraft aerodynamics
b) To prevent the holes from becoming blocked
What is the difference between the measured and real static pressure called?
a) Pitot Error
b) Static Source Error (SSE)
c) Airspeed Error
b) Static Source Error (SSE)
On what factors does the Static Source Error (SSE) depend?
a) Altitude and temperature
b) Fuselage shape and airspeed
c) Wing shape and humidity
b) Fuselage shape and airspeed
Which flight situation influences the measured static pressure?
a) Climbing
b) Sideslip manoeuvre
c) Turning
b) Sideslip manoeuvre
How is the effect of a sideslip manoeuvre on static pressure compensated?
a) By using a single static port on the fuselage nose
b) By installing one static port on each side of the aircraft connected by a cross-porting tube
c) By adjusting the altimeter manually
b) By installing one static port on each side of the aircraft connected by a cross-porting tube
What does the pitot system measure for the Airspeed Indicator (ASI)?
a) Only static pressure
b) Only dynamic pressure
c) Total pressure, the sum of dynamic pressure and static
c) Total pressure, the sum of dynamic pressure and static
Which direction does the pitot tube face?
a) Away from the airstream
b) Parallel to the fuselage
c) Into the airstream
c) Into the airstream
Why must the leading edge of the pitot tube always be in good condition?
a) To avoid affecting the airflow
b) To make it easier to clean
c) To improve static pressure measurement
a) To avoid affecting the airflow
What happens to the pitot tube when heating is switched on while the aircraft is on the ground?
a) It becomes very cold
b) It becomes very hot
c) It remains at the same temperature
b) It becomes very hot
Why must the pitot tube be protected by a cover and when should the cover be removed?
a) To prevent water and foreign objects from entering; cover removed after landing
b) To prevent water and foreign objects from entering; cover removed before the next flight
c) To keep the tube clean; cover removed during flight
b) To prevent water and foreign objects from entering; cover removed before the next flight
What is the function of the baffle in the pitot tube?
a) To measure the airspeed
b) To heat the pitot tube
c) To prevent water or foreign objects from entering the pitot pressure line
c) To prevent water or foreign objects from entering the pitot pressure line
What is the purpose of the drain hole in the pitot tube?
a) To measure static pressure
b) To heat the pitot tube
c) To drain water and dust particles to the outside
c) To drain water and dust particles to the outside
Why must the drain hole in the pitot tube always be kept open?
a) To allow airflow into the pitot system
b) To ensure accurate instrument indication
c) To prevent overheating
b) To ensure accurate instrument indication
