Popping Valve: What You Need to Know

What is a safety valve that opens and closes rapidly called?

a) Popping valve

b) Pressuretrol

c) Fusible plug

d) Steam trap

Answer:

The term for a safety valve that opens and closes rapidly is 'Popping valve'.

When a safety valve opens and closes rapidly, it is referred to as a Popping valve. They are utilized in thermodynamic systems like boilers or pressure cookers, and operate by releasing excess pressure once a certain limit is surpassed.

Explanation:

When a safety valve opens and closes rapidly, it is referred to as a Popping valve. This terminology comes from the general mechanism of such valves. They 'pop' open and close in quick succession when the pressure inside a system, like a boiler or a pressure cooker, exceeds a predefined safe limit, releasing the accumulated pressure to prevent potential damage or accidents.

For example, in a pressure cooker, like the one described in figure 3.3 (b), the safety valve maintains the pressure inside it. If the pressure exceeds its limit, the valve 'pops' open to quickly release some steam and reduce the internal pressure.

Such safety measurements are critical in thermodynamic systems to ensure they operate within safe limits and prevent catastrophes due to overpressure situations.