The Great Pyrenees were originally bred to guard sheep
Indicate whether the statement is true or false
True
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?The squarewave provides the welder with a current that allows the molten weld pool to _______________.
A. ?be cleaner and reduces the need to clean all of the oxides off of the underside of the weld joint B. ?flow freely onto the base metal with minimum fusion for thinner metals C. ?have more gas coverage of the weld at a slower flow rate D. ?have both deeper penetration and faster solidification
A buzzer substituted for a blown fuse can help find a short circuit
Indicate whether the statement is true or false
Refrigerant that has been removed from an appliance and cleaned for reuse without meeting all of the requirements of ARI-700 is considered:
A) Recovered refrigerant. B) Recycled refrigerant. C) Reclaimed refrigerant. D) Virgin refrigerant.
In the modern refrigeration cycle, the compressor:
A) Increases the pressure of the liquid refrigerant so that it will circulate through the system. B) Transfers heat to the outdoor air. C) Reduces the pressure of the liquid from the condenser to the evaporator. D) Pumps low-pressure, low-temperature vapor to high-pressure, high-temperature vapor.