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The last edit to this post was made by Wang Tianze on 2015-12-13 at 14:17: 81. The preparation steps for using an electronic potentiometer involve ensuring that the instrument is stable first (C. Calibrating both the mechanical and electrical zero points simultaneously), and it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at a (C. horizontal position) within the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three. 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument is (C. Thermal resistor with moving-coil meter XCZ-102). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101. 4. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure tapping points should be located in the (B. lower half) of the throttling device. A. Upper part B. Lower part C. Horizontal position D. All of the above; it can be turned off
81. The preparation step for using an electronic potentiometer is to wait until the instrument is stable (A); it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at (A) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument are (B). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101 84. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure tapping points should be located at ( ) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above
81. The preparation step for using an electronic potentiometer is to wait until the instrument is stable (A); it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at (B) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument are (C). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101. 4. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure measurement points should be located at (A) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above
84. If a differential pressure flow meter is required for measuring the flow rate of a liquid according to the process requirements, the pressure tapping points should be located at (B) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above
81, A——82, A——83, B——84, B————
81. The preparation step for using an electronic potentiometer is to wait until the instrument is stable (A); it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at (A) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument are (B). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101. 4. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure tapping points should be located at (B) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above
81. The preparation step for using an electronic potentiometer is to wait until the instrument is stable (c); it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at the (c) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument are (c). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101. 4. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure tapping points should be located at (B) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above
81. The preparation step for using an electronic potentiometer is to wait until the instrument is stable (c); it must not be moved during use. A. First calibrate the mechanical zero point, then the electrical zero point. B. First calibrate the electrical zero point, then the mechanical zero point. C. Calibrate both the mechanical and electrical zero points simultaneously. D. It doesn’t matter whether to adjust the mechanical zero point first or the electrical one. 82. If process requirements dictate the use of a differential pressure flow meter to measure steam flow, then the pressure tapping points should be located at the (c) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. Any of the above three 83. If it is required by the process to measure a temperature of 350°C and the measurement results need to be transmitted for display, the suitable measuring element and display instrument are (c). A. Thermal resistor with an electronic balance bridge B. Thermocouple with an electronic potentiometer C. Thermal resistor with a moving-coil meter XCZ-102 D. Thermocouple with a moving-coil meter XCZ-101. 4. If it is required by the process to use a differential pressure flow meter to measure the flow rate of a liquid, then the pressure tapping points should be located at (B) of the throttling device. A. Upper half B. Lower half C. Horizontal position D. All of the above