压力容器上机测验试题第2套(国外英文资料).doc

压力容器上机考试试题第2套(国外英文资料) 2 sets of true or false 1: the pressure of the vessel that stores the liquefied gas is independent of temperature. Right answer: wrong 2: () by chemical reaction, the chemical properties of materials can change. The right answer: yes 3: () a static and heavy safety valve shall be used for situations where pressure is low. Right answer: wrong Most of the pressure vessels in our country adopt elliptical seals. The right answer: yes 5: () the air can be compressed but not liquefied. Right answer: wrong The pressure vessel operator shall regularly wash, clean and maintain the liquid level. The right answer: yes 7: () thermocouple thermometers are mainly used for high temperature measurement. The right answer: yes 8: (a) the main purpose of the pressure reducing valve, a pressure medium is high automatic cut to the required pressure, the second is when high side pressure fluctuations, automatically adjust the pressure stability of the low voltage side. The right answer: yes 9: () the pressure vessel of the wall temperature needs to be controlled, and the thermometer or thermometer must be installed. The temperature registration form should be checked regularly. Right answer: wrong 10: () the difference between the explosion limit and the lower limit of the explosion is greater than or equal to 20% of the medium called the explosive medium. The right answer: yes 11: () absolute pressure = table pressure + 0.1 MPa. The right answer: yes 12: special equipment malfunction or abnormal situation occurs, the using unit shall conduct a comprehensive inspection, eliminate accident hidden danger, after can be put into use again. () right 13: death more than 30 people (30), more than 100 people (including 100) or serious injuries (including acute poisoning), or a direct economic loss of 50 million yuan (contain 50 million yuan) or more accidents belong to major accident. () the correct answer: no 14: safety production law regulation, the possible accident kil