3B1 - Power engineering - practice questions with
verified answers
________ explosions, occur when a pressure part of the boiler, such as
the steam drum, fails due to steam pressure, or a structural weakening of
the metal. Ans✓✓✓ Pressure
Chp 9
A pressure controller maintains a constant furnace pressure in a boiler, at
all loads, by adjusting the position of the ______ dampers. Ans✓✓✓
Outlet
Chp 8
According to ASME Code Section VIII, Division 1, an unfired pressure
vessel is a container having a design pressure between ____ kPa and 20
Mpa and does not contain an integral source of heat. Ans✓✓✓ 100
Chp 15
According to ASME Code Section VIII, Division 1, an unfired pressure
vessel is a container having a design pressure between ____ kPa and 20
Mpa and does not contain an integral source of heat. Ans✓✓✓ 100
Chp 15
, At high loads when the steam temperature tends to go above the desired
value, the tilting burners are tilted ___________. Ans✓✓✓ Downwards
...
Chp 8
Calcium sulphate, in particular, is the main scale forming constituent
found in boiler water. When ___________ out of solution onto a hot
metal surface, it forms a hard, dense scale. Ans✓✓✓ Precipitated
Chp 12
Chemical analysis has shown that the chief constituents of hard scales
are ________ sulphate and calcium and magnesium silicates. Ans✓✓✓
Calcium
Chp 12
During the process of welding, ______ are set up in both the weld metal
and in the base metal, adjacent to the weld. Ans✓✓✓ stresses
Chp 14
If allowed to remain in the water, _______ acid will break down into
carbon dioxide, which causes corrosion. Ans✓✓✓ Carbonic
Chp 12
verified answers
________ explosions, occur when a pressure part of the boiler, such as
the steam drum, fails due to steam pressure, or a structural weakening of
the metal. Ans✓✓✓ Pressure
Chp 9
A pressure controller maintains a constant furnace pressure in a boiler, at
all loads, by adjusting the position of the ______ dampers. Ans✓✓✓
Outlet
Chp 8
According to ASME Code Section VIII, Division 1, an unfired pressure
vessel is a container having a design pressure between ____ kPa and 20
Mpa and does not contain an integral source of heat. Ans✓✓✓ 100
Chp 15
According to ASME Code Section VIII, Division 1, an unfired pressure
vessel is a container having a design pressure between ____ kPa and 20
Mpa and does not contain an integral source of heat. Ans✓✓✓ 100
Chp 15
, At high loads when the steam temperature tends to go above the desired
value, the tilting burners are tilted ___________. Ans✓✓✓ Downwards
...
Chp 8
Calcium sulphate, in particular, is the main scale forming constituent
found in boiler water. When ___________ out of solution onto a hot
metal surface, it forms a hard, dense scale. Ans✓✓✓ Precipitated
Chp 12
Chemical analysis has shown that the chief constituents of hard scales
are ________ sulphate and calcium and magnesium silicates. Ans✓✓✓
Calcium
Chp 12
During the process of welding, ______ are set up in both the weld metal
and in the base metal, adjacent to the weld. Ans✓✓✓ stresses
Chp 14
If allowed to remain in the water, _______ acid will break down into
carbon dioxide, which causes corrosion. Ans✓✓✓ Carbonic
Chp 12
