Post weld heat treatment is
a) to make the material hot enough for welding
b) heating the material after welding
c) to improve weld penetration
d) to clean up the welded area
e) done to reduce corrosion
Answer: B
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Basic Boiler Construction
- In early boilers, furnace walls were constructed of brick. Today this method has been replaced by the use of
- Three types of furnace water-walls are the tangent tube, welded fin, and
- Boilers supported from the top
- With a bottom-supported boiler, the steam drum is usually
- Internal furnaces are
- A Morison furnace is
- Manholes are
- A boiler nozzle attachment
- A major force which acts to hold a manway door in place during boiler operation is
- Boiler stays
- The flat surfaces which require staying in a firetube boiler are the tube sheets, waterless, and
- A tube expander is used to
- Tubes for high-pressure service are usually
- A non-destructive test on a boiler is
- With regard to welding, heat treatment
- Head-to-drum circumferential joints are usually
- The circumferential seam of a riveted boiler shell utilized the
- One or more steel plates rolled into a cylindrical form and welded together, with the ends closed by means of end plates or heads, is called a
- Common shell and drum thickness range is