Aircraft Systems & Instruments Flashcards
6 cards from real CGI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Aircraft Systems & Instruments flashcards as text
What is density altitude, and why is it important?
Answer: Pressure altitude corrected for nonstandard temperature; affects aircraft performance
Density altitude is pressure altitude corrected for nonstandard temperature and represents the altitude at which the aircraft 'thinks' it is flying for performance purposes.
What happens to indicated airspeed (IAS) and true airspeed (TAS) as altitude increases at a constant power setting?
Answer: IAS decreases while TAS increases
As altitude increases, air density decreases, so the aircraft must fly faster (higher TAS) to produce the same aerodynamic pressure (IAS).
During a static port blockage in flight, what will the altimeter display?
Answer: The altitude at which the blockage occurred, remaining frozen
A blocked static port freezes the altimeter, VSI, and airspeed at the readings they had when the blockage occurred.
What is the function of the attitude indicator (artificial horizon)?
Answer: Shows pitch and bank attitude relative to the natural horizon
The attitude indicator uses a gyroscope to display the aircraft's pitch and bank relative to the actual horizon, independent of outside visual references.
Which of the following best describes torque effect in a single-engine propeller aircraft?
Answer: The tendency to roll left as the engine torque reaction acts opposite to propeller rotation
Newton's third law causes the aircraft to roll opposite to propeller rotation direction; for a clockwise-rotating prop, the aircraft tends to roll left.
What is the purpose of the fuel-air mixture control in a piston aircraft?
Answer: Adjusts the ratio of fuel to air to maintain engine efficiency as air density changes with altitude
As altitude increases, air density decreases, so the mixture control allows the pilot to lean the fuel-air ratio to maintain optimal combustion efficiency.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy