An HVACR technician takes a reading of 25 Hg. Which type of gauge is he using?

A) He is using a manometer. B) He is using a compound gauge.
C) He is using a high pressure gauge. D) It is impossible to tell.


B

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A 2,700 sq. ft. geothermal heat exchange bed is 125 ft. wide.  The bed's length is:?

A. ?21.6 ft. B. ?1,225 ft. C. ?2,450 ft. D. ?2,575 ft.

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Referring to the Broderson IC-80-1G industrial crane load chart shown in Figure 1, find the net capacity in the following configuration:



• On-rubber lift
• Over-side lift
• Lifting on main boom, no extension
• Load radius of 14.7 feet

a. 1,695 lb
b. 1,725 lb
c. 1,785 lb
d. 1,910 lb

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Typically, control circuit voltage drop should not exceed  _____ volts..

A. 0.1 B. 0.2 C. 0.5 D. 1.0

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The range of input voltage that will not cause output voltage clipping or distortion is called

A) common-mode input voltage range B) common-mode output voltage range C) output voltage range D) input voltage limit

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