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mediumpitot-static

If the pitot tube becomes blocked but the drain hole remains clear, the ASI will:

Read zero. With a blocked pitot and clear drain, pitot pressure bleeds to ambient; the ASI reads zero as total pressure equals static.

Over-read in a climb, under-read in a descent

Read zero

Freeze at the speed when the blockage occurred

Continue to read normally

Read zero✓ Correct Answer

Explanation

With a blocked pitot and clear drain, pitot pressure bleeds to ambient; the ASI reads zero as total pressure equals static.

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