_____________________ are designed to measure more than one electrical value.
Fill in the blank(s) with the appropriate word(s).
Multimeters
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The purpose of a heat anticipator is to ____.
A. anticipate a sudden rise in temperature B. keep the thermostat warm C. reduce the temperature swing of a conditioned space D. ensure that the system transformer does not overheat
In order to meet an emergency, three single-phase transformers with 12,470/7200 V rms are connected in ?-Y to form a three-phase transformer which is fed by a 12,470-V transmission line. If the transformer supplies 60 MVA to a load, find:
(a) the turns ratio for each transformer, (b) the currents in the primary and secondary windings of the transformer, (c) the incoming and outgoing transmission line currents.
The type(s) of feature(s) in runout tolerance is (are) ____.
A. cylindrical B. cylindrical taper C. conical D. both a and c E. all of the above
Select the NATE specialty test areas. (You may select more than one.)
A) Air distribution B) Transport refrigeration C) Domestic appliances D) Gas furnaces E) Air conditioning F) Oil furnaces G) HVAC efficiency analyst H) Electric furnaces