Question 105Safety & Environmental - Assistant Engineer

The correct answer is C) downstream of the blowers. The instruments must be located downstream of the blowers to measure the gas concentration, pressure, and temperature after the inert gas has been mixed and distributed through the system. This ensures the instruments are measuring the actual conditions of the inert gas being supplied, rather than before it has been properly mixed and regulated. The other options are incorrect because the measurement points would not accurately reflect the final inert gas conditions. The scrubber outlet (A) would measure the gas before the final regulation, the gas regulating valve (B) would be before the final distribution, and the liquid-filled breaker (D) would not be the appropriate location for these instruments.