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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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
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).