CAA NZ AME Instruments Practice Questions - CAA NZ Aircraft Maintenance Engineer Licence Examination - Subject 12 Instruments Exam - CAA NZ AME Instruments Practice Questions - CAA NZ Aircraft Maintenance Engineer Licence Examination

Question 1

What pressure input is connected to the interior of the aneroid capsule inside a basic non-servo sensitive altimeter?

The capsule is evacuated (sealed internal vacuum) and does not take a direct pressure line. Static pressure from the static port. Pitot ram air pressure from the pitot tube. Dynamic differential pressure between pitot and static sources.

Correct Answer:

The capsule is evacuated (sealed internal vacuum) and does not take a direct pressure line.

Question 2

Which two pressure inputs are required for the operation of an Airspeed Indicator (ASI)?

Pitot (total/ram) pressure and static pressure. Static pressure and barometric reference pressure. Pitot pressure and vacuum pump suction pressure. Dynamic pressure and ambient air temperature.

Correct Answer:

Pitot (total/ram) pressure and static pressure.

Question 3

What creates the differential pressure across the diaphragm in a conventional Vertical Speed Indicator (VSI) during a climb?

A calibrated leak (capillary tube) restricting static pressure change in the instrument case relative to the diaphragm. A direct ram pressure line connected to the lower chamber of the diaphragm. A pitot pressure diaphragm connected via a mechanical metering valve. A bimetallic temperature compensation lever acting on the case volume.

Correct Answer:

A calibrated leak (capillary tube) restricting static pressure change in the instrument case relative to the diaphragm.

Question 4

When an aircraft climbs from sea level to 10,000 feet, what happens to ambient static pressure and the altimeter aneroid capsule?

Ambient static pressure decreases, causing the aneroid capsule to expand. Ambient static pressure increases, causing the aneroid capsule to expand. Ambient static pressure decreases, causing the aneroid capsule to compress. Ambient static pressure increases, causing the aneroid capsule to compress.

Correct Answer:

Ambient static pressure decreases, causing the aneroid capsule to expand.

Question 5

During a pitot system leak test on an aircraft, what is the standard practice regarding pitot drain holes?

Pitot drain holes must be temporarily sealed with approved tape or plugs before applying test pressure and removed immediately after testing. Drain holes must remain open to allow water to vent during the pressure test. Drain holes are permanently sealed with epoxy during installation. Test pressure must be applied directly through the drain hole while plugging the main entry tip.

Correct Answer:

Pitot drain holes must be temporarily sealed with approved tape or plugs before applying test pressure and removed immediately after testing.

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About this Exam

Prepare with the CAA NZ AME Instruments Practice Questions - CAA NZ Aircraft Maintenance Engineer Licence Examination - Subject 12 Instruments Exam practice quiz. This question bank includes 100 questions covering aircraft, indicator, altimeter, static, and pressure. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CAA NZ AME Instruments Practice Questions - CAA NZ Aircraft Maintenance Engineer Licence Examination - Subject 12 Instruments Exam

This practice set contains 100 questions from the matching question bank and focuses on aircraft, indicator, altimeter, static, and pressure. 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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CAA NZ AME Instruments Practice Questions - CAA NZ Aircraft Maintenance Engineer Licence Examination - Subject 12 Instruments Exam

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