【Daily Quiz 092】Basic Knowledge of Control Systems

Thread Content

This post was last edited by LZ Gas Station on 2009-12-11 at 10:03. Multiple-choice question: 1. For intelligent transmitters, a 275 HART communicator can be connected to (). A. Can only be connected to the header. B. Can only be placed in front of the safety barrier. C. Can only be placed behind the safety barrier. D. At any endpoint of the circuit. 2. Before leaving the factory, turbine flowmeters are generally calibrated using (). A. Diesel B. Neutral oil C. Water D. Air. 3. The peak area of a hydrogen flame chromatograph is related to the flow rate of the carrier gas ( ). A. Related B. Unrelated C. Directly proportional D. Inversely proportional. 4. When measuring steam flow, deflection of the baffle can cause the indication to (). A. Low B. High C. Not necessarily 5. The operating temperature of tetrafluorine fillers is generally around ( ) degrees Celsius: A. -40~250 B. -60~450 C. -60~-250 D. Any temperature. True or False question: 6. The output force of an actuator is the force used to overcome the load. 7. During uniform adjustment, to ensure fast and stable regulation, the regulator’s control law can be chosen as PID control. 8. All closed containers subjected to pressure loads can be referred to as pressure vessels. 9. Since the electromagnetic flowmeter is fastened to the chemical pipeline, it is not necessary to use a ground wire. 10. Among the temperature measurement primary elements used in industry, platinum resistance thermometers offer the highest measurement accuracy. Reference answer: DCBAA True False True False True