Hot spots on tubes are a serious problem. They indicate poor heat ____ through the tube walls
distribution
transfer
flux
sensor
The separately fired superheater is located in a ____ apart from the main steam generator and is independent of the steam generator operating conditions.
boiler
furnace
building
eclosure
Furnace baffles can be placed so as to cause the gases to flow at right angles to the tube length, in which case they are called ______ baffles.
longitudinal
cross
back
straight
In order to direct the flow of combustion gas over the tubes in a watertube boiler it is necessary to use ______
baffles
deflectors
fans
preheaters
There is no steam flow through the ______ tubes before the steam turbine has a steam flow through it. Be careful not to increase boiler firing too rapidly and overheat the reheat tubes during startup.
superheater
economizer
reheater
The water and water/steam mixture in the steam generation tubes is at ______ temperature
superheat
critical
saturation
normal
A wall suitable for severe service, where the tubes are side by side and touching each other, is called a _______ wall
solid
membrane
screen tube
tangent tube
The control methods are used for reheater temperature are the same as those used for _____ temperature control.
fuel gas
preheater
The ________ increases the temperature of the steam from the H.P. turbine back up to superheat temperature.
Furnace Baffles may be placed so as to cause the gases to flow parallel to the tubes, in which case they are called _____ baffles.