aircraft systemsFAA-published sample question (AGI, Aug 2021)
What effect, if any, does ambient temperature have on propane tank pressure?
A
It has no effect.
B
As temperature decreases, propane tank pressure decreases.✓ Correct Answer
C
As temperature decreases, propane tank pressure increases.
Explanation
Propane tank pressure is its vapor pressure, which depends on temperature: as temperature decreases, tank pressure decreases (which is why balloonists sometimes pressurize tanks with nitrogen in cold weather). Temperature definitely affects it.
Related aircraft systems questions
If the ground wire between the magneto and the ignition switch becomes disconnected, the most notice...When the pilot leans the mixture control, what is being accomplished?The reason for variations in geometric pitch (twisting) along a propeller blade is that itWhat should a pilot do if a small hole is seen in the fabric of a balloon during inflation?The pilot controls the air/fuel ratio with the
Keep practising
Study more FAA Flight Instructor questions, or take a timed practice quiz.