Glossary – V

Vector: A straight line drawn to scale that shows magnitude and direction of a force.


Vessel: Includes every description of watercraft used or capable of being used as a means of
transportation on the water.


Veterinarian: See Doctor of Veterinary Medicine.


Viscosity: The measure of a fluids resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal concept of “thickness”; for example, honey has a much higher viscosity than water.


Viscous: Resistant to flow under stress.


Visual Infrared Thermometer: An instrument that measures the average apparent surface temperature of an object based upon the object’s radiance while providing either a visible light image or low-resolution thermal image on the instrument’s display screen.


Void: (1) An open space or break in consistency. (2) Air or gas that has been trapped and cured in a laminate during the manufacturing process.


Volt: Measure of potential energy. One volt is equal to1 joule per coulomb. Volt =joule/coulomb.


Voltage Drop: The difference between the source voltage and the voltage across a load supplied by the


Voltmeter: Measures in volts the potential difference between two points in an electric circuit. Electric pressure or voltage is measure utilizing the voltmeter.