When an air heater is used in a boiler:
a. The forced draft fan supplies hot gases to the air heater
b. The induced draft fan supplies combustion air to the air heater
c. It increases the efficiency of the boiler
d. The boiler usually has only a forced draft fan
e. A balanced draft system cannot be used
Answer: C
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Power Engineering Chapter 56
- A boiler with only an induced draft fan:
- Boiler chimneys are commonly lined with:
- A characteristic of mechanical draft is that the draft:
- Boiler combustion is regulated by:
- Natural draft is produced in a boiler furnace when:
- Induced draft may be accomplished by a:
- The inclined tube manometer:
- In a forced draft system, the furnace pressure is:
- An induced draft fan:
- A diaphragm type pressure gauge:
- When draft is produced by natural means:
- With an axial flow fan, the air flow:
- A more durable chimney for a power plant application is the _____ chimney.
- In a balanced draft system, the air heater is located:
- Primary air:
- Inlet damper control on a fan:
- The most efficient operation of a fan demands that:
- With fan output damper control:
- Which code specifies standards for the air openings required into a boiler room when the boiler is burning gas?
- Which code specifies standards for the air openings required into a boiler room when the boiler is burning oil?
- A diaphragm draft gauge indicates pressure in?
- The inclined tube manometer advantages over the U tube manometer is?
- In a balanced draft system, the control for the induced draft fan is?
- The combustion control system dictates the amount of steam being produced by sensing?