Describe how a tap is used.
What will be an ideal response?
One of the most practical and widely used methods of producing internal threads is to cut them with a round, formed, thread-cutting tool called a tap. The tap is inserted in a hole that is the same diameter as the root diameter of the thread to be produced. As the tap with its multiple cutting edges is turned, it advances into the hole to cut a thread. The thread is a specified size and shape to correspond with a mating threaded part. This process is called tapping, and the hole that is threaded is called a tapped hole. When the hole is a drilled hole, the drill is called a tap drill.
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A) Use to straddle mill B) Used to cut shallow grooves C) Used to cut deep grooves D) All of the above
How deep a cut can be made in solid wood floor joists to accommodate ductwork?
A) Up to half the depth of the joist may be cut out from the bottom of the joist B) No cuts can be made in solid wood floor joists for ducts C) Up to half the depth of the joist may be cut out from the top of the joist D) The joist can be completely severed so long as successive joists are not cut
In the accompanying figure, provide a brief description of the process for the symbol identified as number 1.
What will be an ideal response?