Heating cable for snow-melting is typically installed in a serpentine pattern with loops spaced at _____.
a. 6 inches (15 cm) on center
b. 1 foot (30 cm) on center
c. 1.5 feet (46 cm) on center
d. 2 feet (61 cm) on center
b. 1 foot (30 cm) on center
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What is the purpose of the zone 1 (master) thermostat in the basic zone control system?
A) The zone 1 thermostat controls the master bedroom. B) The zone 1 thermostat determines the operational mode of the equipment. C) The zone 1 thermostat controls the operation of all zone dampers. D) The zone 1 thermostat determines the on and off cycling of the unit.
In order to avoid ________ between cells, adjacent cells are not allowed to use the same frequencies
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The process that causes beneficial consequences on yield for unknown reasons is called ______________________________
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A right triangular design is often made in ____________________
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