Why is "inches of water column" used to measure gas pressure instead of psig?

What will be an ideal response?


"Inches of water column" is a smaller scale and will give more accurate measurements.

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The minimum width of the air space generally used between a brick veneer and a wood stud backup wall is

A) 1 in. B) 1-1/2 in. C) 2 in. D) 2-1/2 in. E) 3 in.

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The _____ is a reservoir carrier of the LCM virus

a. chinchilla b. African rock python c. passerines bird group d. common house mouse

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Unlike gauge sending units, the sending units for a warning light are nothing more than simple ____.

A. switches B. thermistors C. lamps D. resistors

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Technician A says an antilock system that operates on the select-low principle will control each rear wheel individually. Technician B says systems using the select-low principle regulates rear wheel brake pressure to both rear wheel simultaneously. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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