The torque at the bottom of a speed (rpm) versus torque curve. The torque developed by the motor is a percentage of the full-load or rated torque. At this torque the speed, the rotational speed of the motor as a percentage of synchronous speed is zero. Th ...

A type of solar thermal collector where the heat transfer fluid flows through tubes formed in the absorber plate.

Personal Protective Equipment

Miles Per Gallon

A door-like device located at the mouth of a fireplace chimney flue for controlling the direction and flow of the draft in the fireplace as well as the amount of oxygen that the fire receives.

The actual power rating that is developed by a motor before losses occur.

Embrittlement of iron-chromium alloys (most notably austenitic stainless steels) caused by precipitation at grain boundaries of the hard, brittle intermetallic sigma phase during long periods of exposure to temperatures between approximately 560 and 980

A unit of luminous flux. The lumen is equal to the luminous flux radiated into a unit solid angle (steradian) from a small source having a luminous intensity of one candle. An ideal source possessing an intensity of one candle in every direction would rad ...

A graduated scale placed in a position so that the stage of a stream may be read directly from it. Staff gauges may be placed on bridge piers or pilings, etc., or placed on specially constructed supports.

One of several constant-pressure levels in the atmosphere for which a complete evaluation of data derived from upper air observations is required.

Geological Survey Ship.

A ring used to attach certain bellow type flexible members of an air actuators to the mounting surface.

The party that issues a Bill of Exchange. Usually, the Exporter in an international trade transaction.

When a company that is registered for value added tax (VAT), buys goods or services from another.

A hydrometeor consisting of an aggregate of microscopic and more-or-less hygroscopic water droplets suspended in the atmosphere. It reduces visibility to a lesser extent than fog. The relative humidity of mist is often less than 95 percent.

A type of wind vane having a split or V-shaped tail. The apex orients itself to the direction of the wind.

A large heavy knot usually made in the end of a heaving line to aid in accurate throwing.

The direction at right angles to a ship's heading or the line of her keel

A colorless and odorless gaseous element. The lightest and apparently the most abundant chemical element in the universe. However, it is found only in trace quantities in the observable portion of our atmosphere, only about 0.00005 percent by volume of dr ...

Precipitation of white, opaque, spherical or conical ice particles that are crisp and easily crushed and that have diameters of 2 to 5 mm.