PTAC unit performance is certified by
A) Air-Conditioning, Heating and Refrigeration Institute, AHRI
B) American Society of Testing and Materials Engineers, ASTME
C) Environmental Protection Agency, EPA
D) Underwriters Laboratory, UL
A
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Technician A says shock absorbers should be replaced if there is a slight oil film on the lower tube. Technician B says shock absorbers should be replaced if they have severe dents in the lower tube. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Most torque converters consist of an impeller, a turbine, and a stator.
Answer the following statement true (T) or false (F)
Compare nonreactive gases and exothermic gases.
What will be an ideal response?
What is a dual-fuel heat pump?
A) A heat pump that can operate on either natural gas or propane B) A heat pump with a fossil fuel furnace instead of heat strips for the auxiliary heat C) A heat pump that can operate on either alternating current or direct current D) A heat pump that can operate on either natural gas or oil