term1 Definition1term2 Definition2term3 Definition3
Please sign in to your Google account to access your documents:
A burner must be started in a particular sequence to ensure ____
Safe startup
A ____ cycle is a predetermined period of time during which air is blown through the furnace to remove any combustible vapors
Purge
A ____ is used to sense the pilot and main flame in the burner
Flame sensor
Proving the main flame is sighting the main flame through a flame scanner to verify that the ____
Main flame is lit
____ is a purge that occurs after burner shutdown
Postpurge
If steam is being used faster than it is being generated, the steam pressure _____
Decreases
_____ can be used in plants where the steam load is steady and allows the burner to be started and stopped
ON/OFF control
A(n) _____ is a combination control system that is used to adjust the firing rate to a degree that is proportional to the steam load
Modulating control system
A(n) _____ is a combustion control system in which the flow of fuel and air are measured and adjusted in correct proportions based on steam pressure
Metering control system
Combustion controls use signals sent from measuring instruments to the controller and from the controller to a(n) ____ that changes flow
Final element
Need help typing ? See our FAQ (opens in new window)
Please sign in to create this set. We'll bring you back here when you are done.
Discard Changes Sign in
Please sign in to add to folders.
Sign in
Don't have an account? Sign Up »
You have created 2 folders. Please upgrade to Cram Premium to create hundreds of folders!