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This post was last edited by Wang Tianze on 2015-11-22 at 15:41. 34. When using thermocouples for temperature measurement, the purpose of using compensation wires is (B). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation. 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field. This thread has been closed
34. When using thermocouples for temperature measurement, the purpose of using compensation wires is (B). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field
34 A. Cold-end temperature compensation 35 D. The rotor speed is always lower than the magnetic field speed
34. The purpose of using a compensation wire in thermocouple temperature measurement is ( B ). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation. 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field
34, A. 35, D. 34, A. 35, D.
34. The purpose of using a compensation wire in thermocouple temperature measurement is ( B ). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field
34. When using thermocouples for temperature measurement, the purpose of using compensation wires is (A. Cold junction temperature compensation). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D. The rotor speed is always lower than the speed of the magnetic field). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field
34. The purpose of using a compensation wire in thermocouple temperature measurement is ( A ). 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D).
34. When using thermocouples for temperature measurement, the purpose of using compensation wires is (A. Cold junction temperature compensation). 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D. the rotor speed is always lower than the speed of the magnetic field).
For question 34, choose B – cold-end extension; for question 35, choose D – the rotor speed is less than the speed of the magnetic field.
34. The purpose of using a compensation wire in thermocouple temperature measurement is ( A ). A. Cold junction temperature compensation B. Extension of the cold junction C. Connection between the thermocouple and the display instrument D. Cold junction temperature compensation. 35. The term “asynchronous” in a three-phase asynchronous motor refers to (D). A. The rotor speed is different from the frequency of the three-phase current. B. The periods of the three-phase currents are all different. C. The speed of the magnetic field is always less than the rotor speed. D. The rotor speed is always less than the speed of the magnetic field