Benson boiler: average operating pressure range and representative value. Select the most commonly cited average operating pressure for a Benson boiler used in exam practice (options in bar).

ConceptBenson boilers are designed for very high pressure operation (often at or above the water critical pressure of ≈221 bar). In many standard MCQs, the representative average operating pressure is taken as about 200 bar among the discrete options provided.

ClarificationActual installations may operate around or above the critical pressure; however, within the choices given, 200 bar is the conventional key.

Final Answer200 bar