Aviation Maintenance Terms beginning with V

Vapor pressure

The portion of atmospheric pressure that is exerted by the moisture in the air (expressed in tenths of an inch of mercury).

Volt

The basic unit of electrical potential or electromotive force. A potential of one volt appears across a resistance of one ohm when a current of one ampere flows through that resistance.

Voltmeter

A current-measuring instrument, designed to indicate voltage by measuring the current flow through a resistance of known value

Volume

The amount of space within a three-dimensional solid