A receiver tuned to a particular station is tuned to what type of frequency?
A. Break
B. Ideal
C. Total impedance
D. Resonant
D
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Technicians should be careful when brazing lines to evaporator coils that have preinstalled thermostatic expansion valves because the heat from brazing the lines:
A) Can overheat the TEV bulb and destroy the valve. B) Alters the chemical makeup of the bulb charge and changes its physical properties. C) Can weld the sensing bulb to the suction line. D) Can catch the refrigerant on fire.
Constantine chose to create his new capital of the eastern Roman Empire at the site of what ancient city?
a. Antioch b. Byzantium c. Alexandria d. Jerusalem
When applying a fillet weld to an outside corner joint, ASME approves of the _____
a. corner-to-corner joint b. half-lap joint c. butt weld d. surface weld
A micron gauge is used to measure ____.
A. atmospheric pressures at high altitudes B. atmospheric pressures at sea level C. absolute pressures below 1 mm Hg D. high pressure in a refrigeration system