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THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4014
Question 1
'Interlocks' in a boiler control system are designed to:
  • Lock the doors of the factory
  • Ensure that certain safety conditions are met before a sequence can proceed✔️
  • Speed up the fans
  • Increase the fuel price
Correct Answer Explanation
For example, a burner shouldn't ignite unless the fan is running and water level is safe.