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The 747-400 has a cruise speed of __________

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The 747-400 has a cruise speed of __________

(a) Mach 0.755

(b) Mach 0.855

(c) Mach 0.655

(d) Mach 0.955

I had been asked this question in class test.

Asked question is from Boeing 747 Family of Aircraft’s topic in division Boeing Family Overview of Aircraft Maintenance

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The correct answer is (b) Mach 0.855

The explanation is: The 747 has a cruise speed of up to Mach 0.855, on different versions of the 747-400. The 747-400 was offered in various configurations like passenger, freighter, combi, domestic, extended range passenger and extended range freighter versions.

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