When laying out a sheet metal duct section, various tools are used to mark the metal prior to cutting. __________ are used to scratch straight lines on the metal. __________ are used to scratch arced lines and circles on the metal. __________ can be used to scratch freeform and straight lines on the metal surface.

What will be an ideal response?


Scribes
Dividers
Scratch awls

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All of the following statements are true EXCEPT:

A. bearing clearance can be checked with Plastigage. B. Plastigage is oil soluble and is readily cleaned from the bearing or crankshaft. C. an engine with double oil clearance will throw off five times as much oil onto the cylinder walls, causing increased oil consumption. D. you should rotate the crankshaft while Plastigage is in place.

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?What will happen if the gas flow is too high?

A. ?The cutting speed can be increased on thicker metal. B. ?Thicker metal can be cut but only if the torch can travel faster. C. ?Aluminum can be cut easier. D. ?Turbulence will cause a poor cut.

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Which was the only power involved in the Great War, aside from Japan, to emerge without substantial debt obligations?

a. Great Britain b. France c. Germany d. the United States

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Composition shingles made of asphalt and glass fiber are the most popular steep-slope roofing material, comprising approximately 60% of the residential market and typically lasting between ____ years.

A. 15 and 20 B. 20 and 30 C. 30 and 40 D. 40 and 50

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