Question 1024Navigation General

70% to pass

A line on a weather chart connecting places which have the same barometric pressure is called an _______________.

A isallobar
B isotherm
C isotope
D isobar
AI Explanation

The correct answer is D) isobar. An isobar is a line on a weather chart that connects points of equal barometric pressure. This is the defining characteristic of an isobar - it represents a contour of constant atmospheric pressure. The other answer choices do not accurately describe this meteorological feature. Isallobars represent lines of equal pressure change, isotherms represent lines of equal temperature, and isotopes are atoms of the same element with different numbers of neutrons.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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