Which of the following is NOT a maintenance method of a boiler?
Dry lay-up
Wet lay-up
Short-term lay-up
Chemical lay-up
Chemical lay-up
There are
three type of layup method for maintenance of boiler :
(i) Dry layup:
The objective of dry layup is to maintain the boiler metal surfaces in a
moisture free condition.
(ii) Wet
layup: Wet layup is the method for storing boilers that must be maintained in
an emergency standby mode.
(iii)Short
term layup: Short term layup method improves the controlling method of steam
turbine power.
There is no
method of chemical layup for maintaining boilers.
Hence, the
correct option is (D).
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