In a direct digital control system the primary controller is the
A) bleed type thermostat. B) voltage amplifier.
C) HVACR computer. D) Wheatstone bridge.
C
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The type of metal-such as steel, aluminum, stainless steel, and titanium-being welded will require a change in the certification.
Answer the following statement true (T) or false (F)
List the common diseases and ailments of chinchillas. What are the causes, symptoms, and treatments?
What will be an ideal response?
Technician A says material safety data sheets (MSDS) contain specific information about hazardous materials. Technician B says material safety data sheets (MSDS) must contain information about health, fire, and reactivity hazards posed by the material. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
A magnetic motor is a ____-quadrant control device.
a. single b. double c. triple d. quadruple