Statement I: Air preheaters are used to heat the saturated steam and convert it into dry steam
Statement II: Air preheaters increase the thermal efficiency of the boiler.
1
Both statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I).
2
Both statement (I) and Statement (II) are individually true and Statement (II) is not the correct explanation of Statement (I).
3
Statement (I) is true but Statement (II) is false.
4
Statement (I) is false but Statement (II) is true.