There are two main types of oil pumps used on gun-type burners, _____________________ and ________________.

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


single-stage, two-stage pump

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A smartphone display has 1200 columns and 800 rows, spatial frequencies in a row less than ____ Hz/row will not produce aliasing.

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

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OBD-II requires the PCM to detect faults allowing emissions that exceed how many times the FTP standard?

A) 1.5 B) 2 C) 14.7 D) 10

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An instrument that provides a direct reading of relative humidity is the _____

a. sling psychrometer b. manometer c. velometer d. hygrometer

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When constructing which type of foundation system must a builder find the air-freezing index from IRC Table R403.3(2)?

A) Stepped foundation system B) ICF foundation system C) Frost-protected shallow foundation system D) Monolithic foundation system

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