Answer / venugopal

Because 0% level produced air lock and also oxygen partical
are removed

Answer / mithilesh kumar

hi frnd..
any boiler tripping in two point.1st one is the high and
second is the low limit.
so when boiler tripping at low it's totally protection for
bed coil.if there water is not available then bed coil may
be burst and for high for safety for turbine bcoz this time
water may be reach psh(primary super heater),ssh,and also
in fsh..

how much people working in railways?

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