【Daily Question】11.4 Multiple-choice question: In an emergency, close the emergency shut-off valves from high pressure to low pressure at the outdoor operation site
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In an emergency, the fastest way to close the high-to-low emergency shut-off valves at the field site is (A) the operation of the three-out-of-two low-level interlock, B) shutting off the air supply on-site, C) closing them using hand wheels, or D) contacting the instrumentation team to provide a three-out-of-two analog signal
The answer is A: two-out-of-three interlock.
In an emergency, the fastest way to close the high-to-low emergency shut-off valves at the outdoor operation site is (B)
B. Cut off the air supply at the site!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
In an emergency, the fastest way to shut off the high-pressure to low-pressure emergency shut-off valves at the field is (B, cutting off the air supply on site)
(B. Cut off the air supply on-site)
B、-----------------------------------------------------------------------------------------
In an emergency, the fastest way to close the high-to-low emergency shut-off valves at the field site is B: cut off the air supply on-site
A. Two-out-of-three low level interlock activation: hug::hug:
I believe the correct answer to this question is B.
In an emergency, the fastest way to close the high-to-low emergency shut-off valves at the field site is B: cut off the air supply on-site