D1压力管道考试模拟题4(国外英文资料).doc

D1压力管道考试模拟题4(国外英文资料) 1 determine the problem class B fire danger refers to the explosion limit of flammable gas and air mixture is less than 10% when the gas flashover or explosion occurred in a fire. * the correct answer The larger can be produced when the ignition energy of 2 to determine the problem of flammable and explosive medium pipeline leakage, resulting in secondary accidents. Your answer is correct 3 determine the title pressure pipeline open parking operation, to keep the pressure and temperature is relatively stable, reduce the fluctuation of pressure box temperature, the purpose is to improve the service life of the pipeline and prevent fatigue failure. Your answer is correct 4 determine the problem of flammable and explosive medium leak explosion must first determine whether there will be any secondary explosion, followed by physical or chemical explosion explosion is judged, and then according to the results of the rescue work. Your answer is correct There are two main types of 5 to determine the content detection anticorrosion problem of buried steel pipe layer: accurate positioning of damage size and damaged point point; anticorrosion layer insulation resistance detection. * wrong answer 6 determine the problem of pressure pipeline operating personnel should strictly abide by the relevant provisions of the state safety management of production safety law, pressure piping, refuse violations, including superior leadership and management personnel command or behavior, and report to the relevant departments in a timely manner. Your answer is correct 7 test questions online judgment of pressure pipeline by using the unit, also may entrust the special equipment inspection and testing institutions. The use of online inspection units must be held over 3 special equipment operating personnel certificate online inspection personnel. Have the wrong answer 8 determine the problem is an important element of pressure control valve of pipeline operation, operatio