ALTIMETER

What components make up a barometric altimeter?

• AAn aneroid capsule sensing static pressure
• BAn aneroid capsule sensing pilot pressure
• CA differential capsule sensing pilot and static pressures

At what conditions is pressure error at its maximum?

• AHigh speed and high altitude
• BLow level and high speed
• CAs in and under ground effect

What is the accuracy of a servo altimeter with a stated precision of 1 hPa at mean sea level in standard atmospheric conditions?

• A+- 50 ft at 10000 ft and +- 100 ft at 40 000 ft
• B+- 50 ft at 20 000 ft and +- 90 ft at the tropopause
• C+- 27 ft at MSL and +- 50 ft at 10 000 ft