What is the function of safety valves in the boiler? / » Thermal Engineering 2 solved MCQs / By admin Question: What is the function of safety valves in the boiler? A. to prevent excessive steam pressure B. to prevent excessive air pressure C. to prevent water pressure D. to prevent from rising temperatures Answer» a. to prevent excessive steam pressure Note: The above multiple-choice question is for all general and Competitive Exams in India.