SACAA ATPL Instruments Practice Questions - SACAA Airline Transport Pilot Licence (Aeroplane) Instruments & Electronics Examination Exam - SACAA ATPL Instruments Practice Questions - SACAA Airline Transport Pilot Licence (Aeroplane) Instruments & Electronics Examination Exam

Question 1

Which pressures are supplied to an Airspeed Indicator (ASI) capsule and case to measure indicated airspeed?

Total (pitot) pressure is supplied inside the capsule, and static pressure is supplied inside the case. Static pressure is supplied inside the capsule, and total (pitot) pressure is supplied inside the case. Dynamic pressure is supplied inside the capsule, and total pressure is supplied inside the case. Ambient static pressure is supplied to both the inside of the capsule and the case.

Correct Answer:

Total (pitot) pressure is supplied inside the capsule, and static pressure is supplied inside the case.

Question 2

If the pitot tube becomes completely blocked by ice while its drain hole remains open, what will the Airspeed Indicator (ASI) display during level flight?

The ASI will drop to zero because pitot pressure leaks out through the drain hole. The ASI will freeze at its current reading regardless of changes in airspeed. The ASI will act as an altimeter, indicating an increase in airspeed during a climb. The ASI will indicate an overspeed when accelerating at constant altitude.

Correct Answer:

The ASI will drop to zero because pitot pressure leaks out through the drain hole.

Question 3

If both the pitot inlet and the pitot drain hole become completely frozen and sealed at 10,000 ft, what happens to the ASI reading during a descent to sea level at a constant true airspeed?

The ASI will overread (indicate higher speed) in the descent. The ASI will underread (indicate lower speed) in the descent. The ASI reading will remain completely unchanged throughout the descent. The ASI will immediately drop to zero and stay at zero.

Correct Answer:

The ASI will underread (indicate lower speed) in the descent.

Question 4

What is the consequence of a blocked static port during a climb in a conventional pitot-static system?

The sensitive altimeter freezes at the altitude where the blockage occurred, the VSI reads zero, and the ASI underreads. The sensitive altimeter overreads, the VSI indicates a rapid climb, and the ASI overreads. The sensitive altimeter underreads, the VSI indicates a descent, and the ASI freezes. The sensitive altimeter freezes at the blockage altitude, the VSI reads zero, and the ASI overreads.

Correct Answer:

The sensitive altimeter freezes at the altitude where the blockage occurred, the VSI reads zero, and the ASI underreads.

Question 5

When an unpressurized aircraft switch to an alternate static source located inside the cockpit, what errors typically affect the flight instruments?

Cockpit pressure is usually lower than ambient due to airflow over the fuselage; altimeter reads high, ASI reads high, VSI momentary climb spike. Cockpit pressure is usually higher than ambient; altimeter reads low, ASI reads low, VSI momentary descent spike. Cockpit pressure is equal to ambient; no errors occur on altimeter or ASI, but VSI displays reverse indication. Cockpit pressure is lower than ambient; altimeter reads low, ASI reads low, VSI reads zero.

Correct Answer:

Cockpit pressure is usually lower than ambient due to airflow over the fuselage; altimeter reads high, ASI reads high, VSI momentary climb spike.

Question 1

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Prepare with the SACAA ATPL Instruments Practice Questions - SACAA Airline Transport Pilot Licence (Aeroplane) Instruments & Electronics Examination Exam practice quiz. This question bank includes 100 questions covering airspeed, flight, display, indicator, and turn. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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SACAA ATPL Instruments Practice Questions - SACAA Airline Transport Pilot Licence (Aeroplane) Instruments & Electronics Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on airspeed, flight, display, indicator, and turn. 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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SACAA ATPL Instruments Practice Questions - SACAA Airline Transport Pilot Licence (Aeroplane) Instruments & Electronics Examination Exam

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