Question Paper from: Railway RRB ALP Stage - II (Paper - I)

The advantage(s) of an economiser is/are

1:

it increases the efficiency of the boiler plant 

2:

it reduces the range of temperature between different parts of the boiler

3:

it makes for more rapid evaporation

4:

All of these

Solution:
Chapter Name: Science

This has been asked in Question Paper

Railway RRB ALP Stage - II (Paper - I)

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