Understanding Altimeters and Pitot Tubes

What is the primary function of an altimeter in an aircraft?

• To measure the aircraft's airspeed

• To measure the aircraft's altitude

• To measure the aircraft's fuel level

• To measure the aircraft's engine temperature

Which principle is used by a Pitot tube to measure airspeed?

• Newton's Third Law

• Archimedes' Principle

• Bernoulli’s Principle

• Pascal's Law

What type of error occurs when the QNH setting is incorrect on an altimeter?

• Temperature Error

• Pressure Error

• Instrument Error

• Calibration Error

What happens to the airspeed indicator if the Pitot tube is blocked but the static port remains open?

• The airspeed indicator shows zero

• The airspeed indicator freezes at the last reading

• The airspeed indicator shows maximum speed

• The airspeed indicator shows random values

Which component of the Pitot-static system measures only static pressure?

• Pitot tube

• Static port

• Airspeed indicator

• Altimeter

How does cold air affect the altimeter reading?

• The aircraft appears higher than it actually is

• The aircraft appears lower than it actually is

• The altimeter reading is unaffected

• The altimeter reading fluctuates randomly

What is the consequence of both the Pitot tube and static port being blocked?

• Accurate airspeed readings

• False airspeed readings

• Accurate altitude readings

• No effect on readings

Which type of altimeter is most commonly used in aircraft?

• Mercury barometer altimeter

• Aneroid barometer altimeter

• Digital altimeter

• Laser altimeter

What is the standard atmospheric pressure at sea level used for calibrating altimeters?

• 101.3 kPa

• 100 kPa

• 80 kPa

• 90 kPa

What is the effect of a blocked static port on an aircraft's instruments?

• Correct airspeed and altitude readings

• Incorrect altitude and airspeed readings

• Only airspeed readings are affected

• Only altitude readings are affected