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THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4061
Question 1
If the 'Check Valve' sticks open, the operator will notice:
  • Water level rising very fast
  • Water level dropping and steam flowing back into the feed line✔️
  • The fuel tank emptying
  • The pressure gauge stopping
Correct Answer Explanation
This is a serious condition as the boiler could lose water back to the pump.