What does a higher barometric pressure indicate regarding altitude on the altimeter?

What does a higher barometric pressure indicate regarding altitude on the altimeter?

• A. A lower altitude on the altimeter
• B. A higher altitude on the altimeter
• C. No change in altitude
• D. A change in pressure only

Answer: (A)

A higher barometric pressure on the altimeter indicates that the aircraft is at a lower altitude. This relationship is based on the principles of atmospheric pressure and how altimeters function. An altimeter measures altitude by comparing the current atmospheric pressure to a standard atmospheric pressure at sea level. When barometric pressure is higher than standard, it means that the aircraft is either descending or is flying at a lower altitude than the altimeter is set to account for. The altimeter is calibrated to display altitude based on standard atmospheric conditions, so when the pressure is above the standard level, the indicated altitude will be lower than the actual altitude. Consequently, as the atmospheric pressure increases, the readings on the altimeter will show a lower altitude, clearly indicating the inverse relationship between barometric pressure and altitude on the altimeter.

A higher barometric pressure on the altimeter indicates that the aircraft is at a lower altitude. This relationship is based on the principles of atmospheric pressure and how altimeters function.

An altimeter measures altitude by comparing the current atmospheric pressure to a standard atmospheric pressure at sea level. When barometric pressure is higher than standard, it means that the aircraft is either descending or is flying at a lower altitude than the altimeter is set to account for. The altimeter is calibrated to display altitude based on standard atmospheric conditions, so when the pressure is above the standard level, the indicated altitude will be lower than the actual altitude.

Consequently, as the atmospheric pressure increases, the readings on the altimeter will show a lower altitude, clearly indicating the inverse relationship between barometric pressure and altitude on the altimeter.