O-rings used in R-134a systems are usually ________.
A) Orange
B) Black
C) Red
D) Green
D) Green
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The credit legend identifies the map datum for XY coordinates as the_______which is nearly identical to the_______datum.
Fill in the blank(s) with the appropriate word(s).
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Freehand cuts should be made as clean and _____ as possible.?
A. rounded? B. square? C. vertical? D. horizontal?
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Article __________ in the NEC® covers the requirements for swimming pools, hot tubs, and hydromassage tubs.
a. 110 b. 250 c. 440 d. 680
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The device pictured above is a __________
A) Pneumatic valve B) Pneumatic valve actuator C) Pneumatic valve with manifold D) Industrial valve with pneumatic acturator E) None of the above
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