Magnetic Compass Functionality and Design

The video tutorial explains the magnetic compass, a crucial instrument in aircraft navigation. It covers the Earth's magnetic field, the compass's functionality, and its design challenges. The tutorial also details how to read the compass and its components, emphasizing its role as a reliable backup system. Despite its simplicity, the compass has inherent errors, which will be explored in future videos.

What is the primary function of a magnetic compass in an aircraft?

• To measure altitude

• To calculate speed

• To determine the aircraft's orientation relative to magnetic north

• To predict weather conditions

How does a magnetic compass align itself?

• With the aircraft's heading

• With the Earth's magnetic field lines

• With the nearest airport

• With the sun's position

Why is the compass card inverted in some aircraft designs?

• To ensure the correct heading is indicated

• To provide a clearer view for the pilot

• To save space in the cockpit

• To reduce manufacturing costs

What is the purpose of the liquid inside a magnetic compass?

• To cool the instrument

• To prevent rust

• To increase the weight of the compass

• To dampen movements and provide consistent readings

What does the lubber line on a compass indicate?

• The speed

• The current heading

• The temperature

• The altitude

How are the headings on a compass card read?

• From right to left

• From left to right

• From bottom to top

• From top to bottom

What is one advantage of a magnetic compass over other instruments?

• It is the lightest instrument

• It can predict weather changes

• It is the most accurate instrument

• It requires no external power source

What are some inherent errors in the design of a magnetic compass?

• Humidity and wind errors

• Temperature and pressure errors

• Altitude and speed errors

• Magnetic variation and compass deviation

Why should the compensation screws on a compass not be adjusted by the pilot?

• They are not important for compass accuracy

• They are too difficult to reach

• They require special tools

• They should only be adjusted by maintenance personnel

What is the role of the expansion diaphragm in some compass designs?

• To enhance visibility

• To improve the compass's accuracy

• To increase the compass's weight

• To prevent damage from pressure changes