A construction vehicle that spreads a specified thickness of bituminous mixture over a prepared surface.



Related Terms

EXPLOSION METHOD

Method of measuring the specific heat of a gas at constant volume by enclosing the gas with an explosive mixture, whose heat of reaction is known, in a chamber closed with a corrugated steel membrane which acts as a manometer, and by deducing the maximum temperature reached on ignition of the mixture from the pressure change.

LIGHTENING HOLES

Holes cut into steel vessel's construction plating to reduce weight.

BALLISTIC LIMIT

The minimum velocity at which a particular armor-piercing projectile is expected to consistently and completely penetrate armor plate of given thickness and physical properties at a specified angle of obliquity.

FRAMES

Either in timber sawn, laminated, bent or in metal riveted or welded, they are the transverse construction members that create the base for the planking or plate to clothe.

DIRECT DELIVERY

  1. The conveyance of goods directly from the vendor to the buyer. Frequently used if a third party acts as intermediary agent between vendor and buyer.
  2. Direct discharge from vessel onto railroad car, road vehicle or barge with the purpose of immediate transport from the port area (usually occurs when ports lack adequate storage space or when ports are not equipped to handle a specific cargo).

AIR DIVING

A type of diving in which the diver's breathing medium is a normal atmospheric mixture of oxygen and nitrogen; limited to depths of 190 feet (58 meters).

EVAPORATIVE CONTROL SYSTEM

A motor vehicle system that prevents escape of gasoline vapors from the fuel tank or carburetor to the atmosphere while the engine is not operating.

DIGESTED SLUDGE

Sludge or thickened mixture of sewage solids with water that has been decomposed by anaerobic bacteria.

FLASHBACK

A phenomenon occurring only in pre-mix gas burners when the flame speed overcomes the gas-air mixture flow velocity exiting the gas tip. The flame rushes back to the gas orifice and can make an explosive sound when flashback occurs. Flashback is most common when hydrogen is present in fuel gas.

BURNER

A device which combines fuel and air in proper proportions for combustion and which enables the fuel-air mixture to burn stably to give a specified flame size and shape.

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