Which of the following is the only EPA-approved refrigerant that can be used for leak testing?
a. HFC-410A
b. HFC-134a
c. HFC-407C
d. HCFC-22
d. HCFC-22
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Which of the following coolants has the longest service life?
A. alcohol based coolant B. EG C. premix ELC D. PG
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?____ are two-dimensional views looking at the outside of a building or exterior feature.
A. ?Elevations B. ?Details C. ?Scales D. ?Dimensions
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Single-space beams are typically referred to as ____.
A. Tudor arch B. CMUs C. glu-lams D. anchors
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What part turns the fuel injectors on and off?
A) MAF sensor B) Ignition system C) PCM D) MAP sensor
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