What is required when installing a 90 percent furnace that is not required for an 80 percent furnace?
A) A catalytic cell for the combustion gas catalytic converter
B) A drain for the condensate from the recuperative coil
C) An extra-large supply duct to handle the extra heat output
D) An oxygen line for the combustion gas afterburner
B
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In the ____________________ method of dimensioning, the overall dimensions of length, width, and height are given.
Fill in the blank(s) with the appropriate word(s).
What are the two major reasons for aerating nutrient solutions?
What will be an ideal response?
When a technician fails to use a torque wrench to tighten a fastener, what is the likely outcome?
A. fastener breaks B. fastener over-torqued by 50-100% C. fastener under-torqued by 50-100% D. fastener drops
Pressures are controlled in an orifice tube (OT) system by _______________________
A) Using a variable valve B) Cycling an electromagnetic compressor clutch on and off as needed. C) Using a variable displacement compressor D) Either B or C