What is the purpose of a duct stretcher?
A) To pull rectangular duct together when using drive cleats
B) To pull flexible duct straight
C) To increase the length of a sheet metal duct when it is within a 1/4 in.
D) There is no such thing as a duct stretcher
A
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Fill in the blank(s) with the appropriate word(s).
What is implied by the phrase hotline service?
What will be an ideal response?
"Lines of explosion" is another term for ____.
A. centerlines in an exploded assembly drawing and trails B. construction lines in an exploded assembly drawing C. the direction that an exploded assembly drawing has been placed on the page D. the type of method chosen for the final layout of an exploded assembly drawing E. none of the above
Some gaskets use a steel washer around each bolt hole. The purpose of this washer is to _________
A) Help seal around the bolt hole B) Improve the strength of the gasket C) Prevent the gasket from being compressed too much D) Help prevent the gasket from shrinking