As for the description of magnetic compass, which one is NOT true? A. Magnetic compass is useless at the magnetic poles. B. Magnetic compass is sensitive to any magnetic disturbance. C. Deviation changes as a ship‘s magnetic properties change. D. Deviation does not change with heading.

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For ____ the door was chained as well as locked.

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The TV announcer apologized for the breakdown and said that normal service would be _____ as soon as possible.

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_______ is defined as the actual speed of the airplane over the ground. It is true speed adjusted for wind.

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Mary made careful _____ as to the kinds of cake and candy for her party.

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Indicated Airspeed is the speed of an aircraft as shown in the airspeed indicator when corrected for instrument error.

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