(a)Filling the Buffer(b)Filled Buffer(c)Flushing the Buffer
Fig. 3.3 Working of buffer
In Figure 3.3a, the level of the steam in the pressure cooker is increasing. The steam is not full,
hence the whistle will not blow, and the steam will not be released from the pressure cooker.
In Figure 3.3b, the pressure cooker is completely filled. The level of the steam reaches to the
top. Due to high-pressure the whistle blows automatically and the steam comes out of the pres-
sure cooker.
After the steam comes out the whistle falls down. Even when the cooker is not completely
filled with steam, the steam can be released ...
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