HIGH PRESSURE BOILER OPERATOR
EXAM WITH COMPLETE QUESTIONS
AND ANSWERS { GRADED A+}
Boiler - ✔✔A closed vessel in which water is heated, steam is
generated, superheated or any combination thereof under pressure
vacuum by the direct application of heat.
M.A.W.P. - ✔✔Maximum Allowable Working Pressure is the highest
amount of pressure that the vessel is designed to withstand.
Low-Pressure boilers - ✔✔......are designed to withstand a maximum of
15 psig steam or a M.A.W.P. 160 psig water.
High-Pressure boilers - ✔✔.....are designed to withstand pressure above
15 psig steam and/or 160 psig water.
, Fire-tube boiler - ✔✔Has fire or gases of combustion in the tubes, and
water surrounding the tubes.
firebox, Scotch marine, vertical, horizontal return tube (hrt), and
locomotive - ✔✔Types of fire-tube boilers:
Water-tube boilers - ✔✔.....have water running through the tubes and
fire or gases of combustion surrounding the tubes.
Combustion Chamber - ✔✔Air and fuel flow into the furnace
________________, where they are mixed and ignited.
Draft - ✔✔.....is the difference in pressure between two points that
causes air or gases to flow.
-Heat
-Temperature - ✔✔....is the amount of energy contained in a
material......is the intensity of that energy.
Evaporation - ✔✔.....transfers heat by changing the state of the medium
from liquid to vapor.
EXAM WITH COMPLETE QUESTIONS
AND ANSWERS { GRADED A+}
Boiler - ✔✔A closed vessel in which water is heated, steam is
generated, superheated or any combination thereof under pressure
vacuum by the direct application of heat.
M.A.W.P. - ✔✔Maximum Allowable Working Pressure is the highest
amount of pressure that the vessel is designed to withstand.
Low-Pressure boilers - ✔✔......are designed to withstand a maximum of
15 psig steam or a M.A.W.P. 160 psig water.
High-Pressure boilers - ✔✔.....are designed to withstand pressure above
15 psig steam and/or 160 psig water.
, Fire-tube boiler - ✔✔Has fire or gases of combustion in the tubes, and
water surrounding the tubes.
firebox, Scotch marine, vertical, horizontal return tube (hrt), and
locomotive - ✔✔Types of fire-tube boilers:
Water-tube boilers - ✔✔.....have water running through the tubes and
fire or gases of combustion surrounding the tubes.
Combustion Chamber - ✔✔Air and fuel flow into the furnace
________________, where they are mixed and ignited.
Draft - ✔✔.....is the difference in pressure between two points that
causes air or gases to flow.
-Heat
-Temperature - ✔✔....is the amount of energy contained in a
material......is the intensity of that energy.
Evaporation - ✔✔.....transfers heat by changing the state of the medium
from liquid to vapor.
