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A mercury barometer which measures atmospheric pressure by weighing the mercury in the column or cistern.
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Measurement ton 40 cubic ft or one cubic meter.Net ton, or short ton 2,000 lbs.Gross ton/long ton 2,240 lbs.Metric ton/kilo ton 2,204.6 lbs.Cubic meter 35.314 cubic ft.
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Cracking that occurs in the weld metal. See also cold cracking, hot cracking, lamellar tearing, and stress-relief cracking.
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Intergranular corrosion, usually of stainless steels or certain nickel-base alloys, that occurs as the result of sensitization in the heat-affected zone during the welding operation.
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Is used in psychrometry and is the temperature recorded by a thermometer whose bulb has been covered with a wetted wick and whirled on a sling psychrometer. Taken with the dry bulb, it permits determination of relative humidity of the atmosphere.
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Is one which 1) handles a small constant flow of liquid with the gas; 2) utilizes evaporative (injection) cooling; or 3) circulates a liquid for sealing and/or cooling. The last may or may not be evaporative cooling.
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Difference between the temperatures of the dry-bulb and the wet-bulb thermometers of a psychrometer.
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The lowest temperature that can be obtained on a wet-bulb thermometer in any given sample of air. Obtained by evaporation of water (or ice) from the muslin wick. Used in computing dew point and relative humidity.
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A thermometer with a muslin-covered bulb which is moistened. used to measure wet-bulb temperature.
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A condition in which the interfacial tension between a liquid and a solid is such that the contact angle is 0
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A substance that reduces the surface tension of a liquid, thereby causing it to spread more readily on a solid surface.
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Charge assessed by a pier or dock owner against freight handled over the pier or dock or against a steamship company using the pier or dock.
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The process of transmitting electricity over one or more separately owned electric transmission and distribution systems. (See Wholesale and Retail Wheeling.)
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A call requesting direction in answer to the report of a lookout that an object has been sighted.