You are rotating an object from 45° degrees to 30° degrees, you have entered the reference option. The reference angle will be:
a. 30°
b. 45°
c. 15°
d. 75°
b. 45°
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____________________ stations are spring-controlled switches, which, when pushed, are used to complete motor or motor control circuits.
Fill in the blank(s) with the appropriate word(s).
Who enjoys both the greatest advantages and disadvantages of competitive bidding?
a. designer c. material supplier b. contractor d. client
What is the possible consequence of cutting through a bonded roof to install a vent pipe?
A) The HVAC/R contractor could ultimately be liable for any water damage resulting from leaks. B) The vent will not vent correctly when passing through a bonded roof. C) An electrical short will be created between the vent pipe and the bond on the roof. D) Cutting through bonded roofing is safe because the roof is insured.
When you remove shims acting on a worm gear, which of the following is likely to result?
A. worm gear endplay increases B. worm gear preload decreases C. worm gear preload increases D. sector shaft endplay decreases