Discuss precision sheet metal parts production.
What will be an ideal response?
The increasing number of applications of thingage metals for parts within instruments, gages, electronic, and other precision equipment requires layouts and parts that are produced to precise machine shop standards. Such sheet metal parts are often blanked, perforated, formed, and trimmed using punches and dies.
In other instances, parts may be manually or computer-programmed and produced on numerical control machines. Ordinate drawings are commonly used for producing precision sheet metal parts. Ordinate dimensions are referenced to zero datums to provide position and size dimensions for production of the part of NC or CNC equipment.
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Explain the 11/4 rule when the discussion is Customer Relations
What will be an ideal response?
Where is the refrigerant piping run from a rack system to the individual refrigerated cases?
A) Through an exterior wall B) In trenches under the floor C) On top of the floor under a protective metal cover D) Refrigerant piping is not necessary because rack systems are self contained.
A block of unknown metal has dimensions: 1 cm x 1 cm x 3 cm. The block’s density is 8000 kg/m^3. What is the mass of the block?
a. 24 g b. 240 g c. 2.4 kg d. 24 kg
Vapor is more dense than liquid and, as the liquid refrigerant boils, it has a tendency to sink.
Answer the following statement true (T) or false (F)