Which instrument is most commonly used to measure AC current?
A) Ohmmeter
B) Multimeter
C) Continuity tester
D) Clamp-on ammeter
Answer: D
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How does an air-defrost system work?
A) Hot compressor discharge gas is routed to the evaporator. B) A warm glycol solution is sprayed on the coil. C) Air from inside the store is directed over the evaporator. D) The superheated gas leaving the evaporator is used to melt the ice.
Information often shown on schematic diagrams includes all the following except:
a. Critical input impedance values b. Voltage rating at parts c. DC resistance of transformer windings d. Cost of individual components e. Indication of operational controls
What is the efficiency rating of a gas furnace with an input of 105,000 Btus and an output of 84,000 Btus?
What will be an ideal response?
Whenever you double your speed, your vehicle has about how many times of destructive power if it crashes?
a. 2 b. 4 c. 3