What must you do when adding mixed units such as feet and inches??
What will be an ideal response?
When adding mixed units, you must add each type of number together first.?
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The type of support that can be used to hang tubing from above or support it from below or even horizontally is called a _____.
a. split-ring hanger b. clevis hanger c. riser clamp d. pipe roller
When a timing chain has broken, the pistons will not move while cranking.
Answer the following statement true (T) or false (F)
Industry associations that establish national standards for the HVACR industry include:
A) DOT, MSHA, and CE. B) AC Standards Association and the Heating Standards Symposium. C) EPA, OSHA, and DOE. D) ARI, ASHRAE, and UL.
In a basic electric circuit with a steady potential, when resistance increases:
A) Current remains the same. B) Current decreases. C) Current increases. D) The resistance has no effect on the current in an electric circuit.