In natural circulation steam boilers, the circulation of water is by convection currents which are set up during the heating of water.
Review the verified answer and explanation for this DemoPaper-Pakistan past-paper question on CampusFin.
Question context
This question is part of ⚙️ Mechanical Eng within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.