This is the concept of how long a device or process can operate properly without needing maintenance or replacement.

A spring loaded pressure relief valve actuated by the static pressure upstream of the valve. The valve opens normally in proportion to the pressure increase over the opening pressure.

Funds sent by one person to another as payment.

(1) The action of a line as it passes over the sheave of a block. (2) The act of easing away gently.

Energy derived from resources that are regenerative or for all practical purposes can not be depleted. Types of renewable energy resources include moving water (hydro, tidal and wave power), thermal gradients in ocean water, biomass, geothermal energy, so ...

Reporting System

Reporting System.

The closeness of agreement among a number of consecutive output values measuring the same input value under the same operating conditions, approaching from the same direction. Usually measured as nonrepeatability but expressed as repeatability, a percenta ...

Vessel moves to a new area for a new season.

The closeness of agreement among measurements of the same value of the same quantity where the individual measurements are made under different defined conditions, i.e. by different methods or with different measuring instruments.

Cubic feet per minute (cfm) of air required at the inlet to the distribution system.

A winch designed for hoisting and lowering the rescue-boat or life/rescue-boat.

The lifting power. It may be measured by the volume of a watertight hull above the load water line.

Stresses that remain within a body as a result of plastic deformation.

The inherent characteristic of a material to inhibit the transfer of energy. In electrical conductors, electrical resistance results in the generation of heat. Electrical resistance is measured in Ohms. The heat transfer resistance properties of insulatio ...

The opposition that a device or material offers to the flow of direct current, equal to the voltage drop across the element divided by the current through the element. Also called electrical resistance.

A type of heating system that provides heat from the resistance of an electrical current flowing through a conductor.

A type of electrical thermometer in which the thermal element is a substance whose electrical resistance varies with the temperature. Such thermometers can be made with very short time constants and are capable of highly accurate measurements.

The voltage developed across a cell by the current flow through the resistance of the cell.

See electrical resistivity.