A reset controller in a hydronic heating system is used to _____
a. reset the burner after shutdown
b. control multiple zone valves
c. modulate pump water flow
d. monitor outdoor temperature
d
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What should be the first step in calculating the radius of a bend when the conduit runs are different sizes?
a. Calculate one-half the outside diameter of the innermost conduit b. Determine the radius of the innermost bend c. Determine the distance between the two runs of conduit d. Calculate the outside diameter of the adjacent conduit
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What will be an ideal response?
_____________ is the science of transmitting force by pushing on a confined liquid.
Fill in the blank(s) with the appropriate word(s).
When the driver depresses the brake pedal of the typical truck with air-over-hydraulic brakes, which of the following occurs?
A. hydraulic pressure actuates the hydraulic booster assemblies B. hydraulic fluid flows through the quick release valves C. modulated air pressure actuates pneumatic booster assemblies D. modulated hydraulic pressure actuates the pneumatic booster assemblies