ATPL 022 Instrumentation Practice Questions - EASA ATPL(A) Theoretical Knowledge - Aircraft General Knowledge Instrumentation (Subject 022) Exam - ATPL 022 Instrumentation Practice Questions - EASA ATPL(A) Theoretical Knowledge - Aircraft General Knowledge Instrumentation (Subject 022) Exam

Question 1

The pitot tube becomes blocked by ice while the static source remains clear. As the aircraft subsequently climbs at a constant indicated airspeed, what will the airspeed indicator show?

It will behave like an altimeter, increasing as the aircraft climbs. It will under-read progressively as altitude increases. It will remain frozen at the value present when the blockage occurred. It will read zero because no dynamic pressure can reach the capsule.

Correct Answer:

It will behave like an altimeter, increasing as the aircraft climbs.

Question 2

An airspeed indicator is calibrated for ISA mean sea level conditions. At high altitude where the air density is much lower than at sea level, how does the indicated airspeed (IAS) relate to the true airspeed (TAS) for a given dynamic pressure?

IAS equals TAS at all altitudes because the instrument is density-compensated. IAS is lower than TAS because the lower density means TAS must be higher for the same dynamic pressure. IAS is greater than TAS because the capsule expands more at altitude. IAS exceeds TAS by the amount of the compressibility correction only.

Correct Answer:

IAS is lower than TAS because the lower density means TAS must be higher for the same dynamic pressure.

Question 3

On a sensitive pressure altimeter, the pilot sets the subscale to QNH. What altitude reference will the instrument then display?

Height above the airfield elevation (above the touchdown point). Pressure altitude referenced to the 1013.25 hPa standard datum. Altitude above mean sea level. Flight level corrected for outside air temperature.

Correct Answer:

Altitude above mean sea level.

Question 4

An aircraft maintains a constant pressure altitude indicated on the altimeter while flying from a region of warm air into a region of significantly colder air. What happens to the true altitude (true height above the terrain at constant pressure)?

True altitude increases because cold air is denser. True altitude is unchanged because the altimeter is reading correctly. True altitude oscillates around the indicated value. True altitude decreases, so the aircraft is lower than indicated.

Correct Answer:

True altitude decreases, so the aircraft is lower than indicated.

Question 5

Which design feature distinguishes an Instantaneous Vertical Speed Indicator (IVSI) from a conventional VSI?

It incorporates accelerometer-operated dashpot pumps to compensate for the inherent lag. It uses two metering choke orifices instead of one. It senses dynamic pressure from the pitot line instead of static pressure. It displays vertical speed digitally rather than with a pointer.

Correct Answer:

It incorporates accelerometer-operated dashpot pumps to compensate for the inherent lag.

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About this Exam

Prepare with the ATPL 022 Instrumentation Practice Questions - EASA ATPL(A) Theoretical Knowledge - Aircraft General Knowledge Instrumentation (Subject 022) Exam practice quiz. This question bank includes 100 questions covering aircraft, airspeed, flight, altitude, and compass. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ATPL 022 Instrumentation Practice Questions - EASA ATPL(A) Theoretical Knowledge - Aircraft General Knowledge Instrumentation (Subject 022) Exam

This practice set contains 100 questions from the matching question bank and focuses on aircraft, airspeed, flight, altitude, and compass. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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ATPL 022 Instrumentation Practice Questions - EASA ATPL(A) Theoretical Knowledge - Aircraft General Knowledge Instrumentation (Subject 022) Exam

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