Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MK1 EOCT AUXILIARY EQUIPMENT > Components of the Johnston Boiler > Flashcards

Components of the Johnston Boiler Flashcards

1
Q

The Johnston Boiler operates on the same principles as the _________.

A

Way-Wolff Boiler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The water level control components either start and stop the feedwater pump or prevent the burner system from operating when there is ________ in the boiler for safe boiler operation.

A

Lack of Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The ______ is also an important visual aid that is used constantly to ensure there is proper level in the vessel.

A

Sight Glass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Monitors steam pressure and starts and stops the burner as required by steam demand.

A

Operating Limit Pressure Control Switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Provided as a safety back up limit should the operating limit pressure control fail. I t will shutdown the boiler at a higher set pressure than the normal operating pressure.

A

High Limit Pressure Control Switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Controls the burner firing rate in relation to steam demand.

A

High/Low Firing Control Switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Indicates the pressure in the boiler.

A

Steam Gauge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Consist of a fuel oil pump with built-in pressure regulator and a drive coupling with guard. The pump set supplies F/O at a regulated pressure to the oil gun.

A

F/O pump set

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Provided to prevent contaminants from entering the F/O pump.

A

Inlet Fuel Strainer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Prevents the burner from starting in the event of oil pressure drop or shuts the burner off if it is firing.

A

Low Oil Pressure Switch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Controls the oil to the various oil nozzles.

A

Fuel Shutoff Soleniod Valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Directs the oil into the furnace and atomizes the oil for efficient combustion.

A

Oil Gun Assembly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Used to support all burner components and to direct the combustion air towards the furnace.

A

Burner Housing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Supplies the combustion air to the furnace.

A

Forced Draft Fan Motor w/Mounted Blower Wheel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many Fuel Solenoid Valves are on the Johnston Boiler?

A

4 Plus the Main F/O Solenoid Valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is behind the screen on the Johnston Boiler?

A

Air Inlet Damper

17
Q

Controls the air supplied to the boiler.

A

Two blade inlet damper assembly with mechanical linkage

18
Q

The amount of air supplied to the boiler depends on the number of ______ being fired.

A

Oil Nozzles

19
Q

Used to position the air inlet damper as well as to control the various oil solenoid valves which supply oil to the burner gun.

A

Firing rate motor with auxiliary mounted switches

20
Q

Imparts a spin to the combustion air for optimum mixing of atomized oil from the oil gun and air for efficient combustion.

A

Diffuser Swirler

21
Q

The operating control panel is the electrical control center for the ________.

A

Boiler System

22
Q

The _______ of the operating control panel contains indicating lights, control switches and alarm horns which control and monitor the boiler system.

A

Front Side

23
Q

The ______ of the operating control panel contains two phone pin jacks which may be used for monitoring the direct current flame signal strength.

A

Bottom

24
Q

The _______ of the operating control panel contain the door electric power interlock door latch and reset push button for the combustion control programmer.

A

Front Door

25
Q

The ________ of the operating control panel contains the main disconnect switch, motor starters, fuses, control circuit transformers, control relays and the combustion control programmer.

A

Interior

26
Q

On some boilers there is a cooling fan that has been installed in the door of the control panel. This aids in cooling the electrical components in the panel and thereby increasing ________.

A

Component Life

27
Q

The Flame Safeguard System consist of 2 major components:

A
  • Combustion Control Programmer
  • Flame Sensor
28
Q

An electric device which controls the burner start-up and shutdown sequences, as well as checking all the safety limits.

A

Combustion Control Programmer

29
Q

A small device mounted on the burner front. It monitors infrared radiation from the main flame when burning and returns a signal to the combustion control programmer indicating whether or not these fires are satisfactory.

A

Flame Sensor

MK1 EOCT AUXILIARY EQUIPMENT (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions