仪表工中级试题(国外英文资料).docVIP

仪表工中级试题(国外英文资料) The instrument (intermediate title) First, fill in the blanks 1.1 KGF = (Newton)???? 1MPa= (Pa) Answer: 9.8 units of time to flow through the fluid volume that is called (), (with) said. Answer: capsule volume flow Q 3. transmitter is filled with (), in addition to its transfer pressure, and (), so that the instrument output stable. Answer: 4. silicone oil damping static pressure liquid level meter is based on fluid balance principle (work). Answer: 5. static pressure flange differential pressure transmitter type with A () can transfer, with the B can be said (transfer). Answer: positive and negative 6. automatic control system is mainly composed of (), (), () and () of four parts. Answer: the regulator valve regulated transmitter 7. automatic control system according to the regulator has the regulation law of points, usually have (), (), (), () and regulating system. Answer: proportional integral proportional differential proportional integral differential 8. valve before and after the pressure is small, requires a small amount of leakage, and can be used (valve). Answer: 9. single seat control valve regulating the flow of gas, low differential pressure valve (optional). Answer: Butterfly The 10. is to adjust, cut, can choose (valve). Answer: eccentric rotation 11. boiler drum level general (), (), () composed of three impulse water level control system. Answer: the water flow velocity of fluid flow of steam drum level 12. in the pipeline, in general, the maximum velocity () in the () at the flow rate is equal to zero. Answer: the center line of the pipeline wall 13. turbine flowmeter is a kind of flowmeter (). Answer: speed The 14. PID parameters, P, I and D respectively represent the (). Answer: proportional, integral and differential 15, UPS from the working principle can be divided into (a), (two). Answer: the backup, online (C015) The power supply equipment of 16.TPS system should be () from other systems. Answer: independence 17. pro