A template used to set or check angles in building construction.

Related Terms

PHLEGER CORER

A device for obtaining ocean bottom cores up to about 4 feet (1.2 meters) in length; consists of an upper tube, main body weight, and tailfin assembly with a check valve that prevents the flow of water into the upper section and a consequent washing out of the core sample while hoisting the corer.

HOLLOW-ROD DRILLING

A modification of wash boring in which a check valve is introduced at the bit so that the churning action may be also used to pump the cuttings up the drill rods.

CHECK

To temporarily restrain a line, as to check to cable from paying out.

SNUB

To check (temporarily restrain) the movement of a line by taking a turn around the bitts, a cleat or a post.

MEGAPORTS INITIATIVE

It is a National Nuclear Security Administration (NNSA) initiative, started in 2003. It teams up with other countries to enhance their ability to screen cargo at major international seaports. The Initiative provides radiation detection equipment and trains their personnel to speci cally check for nuclear or other radioactive materials. In return, NNSA requires that data be shared on detections and seizures of nuclear or radiological material that resulted from the use of the equipment provided.

CONTAINER CHECK DIGIT

The 7th digit of the serial number of a container used to check whether prefix and serial number are correct.

BACKWATER VALVE

A type of check valve in a drainage pipe; reversal of flow causes the valve to close, thereby cutting off flow. Also known as backflow valve.

BENCH CHECK

A workshop or servicing bay check which includes the typical check or actual functional test of an item to ascertain what is to be done to return the item to a serviceable condition or ascertain the item's temporary or permanent disposition.

BREADBOARD MODEL

Uncased assembly of an instrument or other piece of equipment, such as a radio set, having its parts laid out on a flat surface and connected together to permit a check or demonstration of its operation.

CALIBRATING TANK

A tank having known capacity used to check the volumetric accuracy of liquid delivery by positive-displacement meters. Also known as meter-proving tank.

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