What should a pilot do to potentially unblock a pitot tube?

What should a pilot do to potentially unblock a pitot tube?

• A. Turn off the pitot heat
• B. Turn on the pitot heat
• C. Increase altitude
• D. Change the flight plan

Answer: (B)

Turning on the pitot heat is the appropriate action for a pilot to potentially unblock a pitot tube. The pitot tube can become blocked due to ice accumulation, particularly in conditions where the temperature is at or near freezing. When the pitot heat is activated, it warms the pitot tube, helping to melt any ice that may have formed inside or around it. This heat allows for the restoration of proper airspeed readings, which are critical for flight safety. In contrast, turning off the pitot heat would allow any ice already present to remain, worsening the blockage. Increasing altitude and changing the flight plan do not directly address the condition of the pitot tube and may not effectively resolve any issues with airspeed measurement. Therefore, utilizing the pitot heat is the most direct and effective method to mitigate a blockage issue in the pitot tube.

Turning on the pitot heat is the appropriate action for a pilot to potentially unblock a pitot tube. The pitot tube can become blocked due to ice accumulation, particularly in conditions where the temperature is at or near freezing. When the pitot heat is activated, it warms the pitot tube, helping to melt any ice that may have formed inside or around it. This heat allows for the restoration of proper airspeed readings, which are critical for flight safety.

In contrast, turning off the pitot heat would allow any ice already present to remain, worsening the blockage. Increasing altitude and changing the flight plan do not directly address the condition of the pitot tube and may not effectively resolve any issues with airspeed measurement. Therefore, utilizing the pitot heat is the most direct and effective method to mitigate a blockage issue in the pitot tube.