The term R&R means ________

A) Remove and recondition B) Remove and replace
C) Remove and repair D) None of these


B

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Adding a(n) ____________________ to the nonautomatic circuit breaker, by using a bimetallic element in each pole of the breaker, provides automatic tripping.

Fill in the blank(s) with the appropriate word(s).

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The _____ keeps the linkage level and supported to prevent bump steer.

A. crosslink system B. idler arm C. pitman arm D. steering column

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How can the water flow through a geothermal system be determined?

A) By using an clamp-on water flow meter B) By measuring the pressure drop across the coaxial coil and comparing it to the manufacturer's chart C) By comparing the waterflow to the refrigerant pressure chart D) By reading the display on the heat pump touchscreen control

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Open-root joints should have a root opening of _____

a. 1/32? to 1/16? (0.8 to 1.6 mm) b. 1/16? to 1/8? (1.6 to 3.2 mm) c. 1/8? to 1/4? (3.2 to 6.4 mm) d. 1/4? to 1/2? (6.4 to 12.7 mm)

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