The first fuel filter in the sock inside the fuel tank normally filters particles larger than ________
A) 70 to 100 microns B) 0.001 to 0.003 in C) 0.010 to 0.030 in D) 10 to 20 microns
A
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The rule of thumb for plant spacing is ________ per inch of stem diameter:
A. 1 foot B. 2 feet C. 3 feet D. 4 feet
Proper height above the roof is important when installing a heat pump rooftop unit
A) to allow the condenser to take advantage of local prevailing wind B) so that the unit can be serviced from underneath C) to insure adequate combustion air to the burners D) so that snow does not block airflow through the outdoor coil
Which step is NOT required in developing ladder logic with BCD conversion instructions?
A) Determine the Boolean equations for the BCD instructions. B) Determine the type of registers based on the size of BCD number. C) Determine the use of the one-shot instruction. D) Determine the type of BCD instructions to use.
Under normal conditions, the human body produces approximately __________ Btus.
A. 200 B. 350 C. 500 D. 1000