2017-1-12 True or False Questions (3 points for participation, 8 points for correct answers)
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During parking for maintenance, the incorrect practice is ( ). (A) When maintenance personnel enter equipment that has been purged with N2, they must first blow it out with compressed air; entry is permitted only after the gas sample is found to be satisfactory. (B) During shutdown in winter, water vapor lines must be blown out with compressed air to remove any accumulated water. (C) In winter, for those outdoor equipment lines and corners where water cannot be removed, the equipment must be disassembled to eliminate all accumulated water. (D) During winter shutdowns, water drainage valves on the water lines should be opened, while steam drainage valves do not need to be opened. D
(D) When parking in winter, the water line drain should be opened for drainage; the steam drain does not need to be opened for drainage
(D) When parking in winter, the water line drain should be opened for drainage; the steam drain does not need to be opened for drainage
(D) When parking in winter, the water line drain should be opened for drainage; the steam drain does not need to be opened for drainage
(D) When parking in winter, the water line drain should be opened for drainage; the steam drain does not need to be opened for drainage