Each course should be aligned before proceeding to the next course.
Answer the following statement true (T) or false (F)
True
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The type of line that consists of a centerline having two dark, parallel lines, drawn at right angles to each end is:
A. Symmetry line B. Dimension line C. Cutting plane line D. Chain line
No more than ________ shims should be used under one foot
A) two B) four C) five D) three
Liquid refrigerant should always be recovered first from chillers:
A) To ensure that all the oil is removed from the compressor. B) To keep from freezing the water in the chiller tubes. C) To prevent the removal of refrigerant oil with the refrigerant. D) To ensure the best mixing of refrigerant and water during recovery.
What is a pickling solution?
A) A corrosion inhibitor used on steel pipes B) The circulating water in a hydronic heating system C) A water additive that is used to improve heat transfer D) A thread sealant that stands up to boiler duty