Question 448Steam Plants - Assistant Engineer70% to pass
Which of the listed types of safety valves is shown in the illustration? Illustration SG-0018
AI Explanation
The correct answer is C) Huddling chamber type.
The illustration SG-0018 depicts a safety valve of the huddling chamber type. This type of safety valve is characterized by the presence of a huddling chamber, which helps to amplify the opening force acting on the valve disc, allowing the valve to open more quickly in response to an overpressure condition.
The other options are incorrect because: A) Pressure-loaded type valves use the system pressure itself to open the valve, B) Nozzle reaction type valves use the force of the escaping fluid to open the valve, and D) Jet flow type valves utilize the kinetic energy of the fluid flow to open the valve. None of these descriptions match the design shown in the illustration.
Related Questions
#446 The primary operational difference between a huddling chamber type safety valve and a nozzle reaction type safety valve is the _______________.#447 On a boiler safety valve, the blow down adjusting ring is locked in place by a _______________.#449 On a boiler equipped with pilot actuated safety valves, which of the valves listed will be actuated first? #450 A boiler safety valve must be capable of _______________.#451 One of the important functions of the superheater safety valves is to _______________.