LA STEAM ENGINEER
LICENSE EXAM STUDY
GUIDE QUESTIONS AND
ANSWERS ALL VERIFIED BY
K
AN EXPECT A+ GRADED
C
LO
YC
D
U
ST
, What are the precautions to be observed when starting any boiler that
has been closed down overnight? Are there any special precautions
required starting a gas burning boiler?
Make a physical observation of the boiler and its systems, walk
around the boiler to check for any abnormal conditions such as
flammable material at the dampers, fuel leaks,damaged electrical
conduits, etc. Check all boiler systems (feedwater, fuel, etc). Very
K
important issue in starting a gas firing boiler is a furnace prepurge. It
never has to be altered or bypassed.
C
LO
How do you determine whether the feed water check valve for the
boiler is not closing?
Check the temperature differential at the check valve when the
YC
feedwater pump is not in operation.
What causes foaming in the boiler? How would you know when a
D
boiler is foaming? How do you stop foaming in a boiler?
High TDS, organic matter and oil in the boiler cases foaming. If the
U
water level in the gage glass fluctuates, the most probable cause of
ST
this is foaming. We reduce the amount of TDS by continuous and
bottom blowdowns;we use anti-foaming chemicals to prevent foaming.
What is boiler priming? What causes priming? How can priming in a
boiler damage an engine or pump?
When the liquid water from the boiler drum gets to the steam lines it is
called priming. Priming can be caused by boiler drum level
excessively high, by foaming, sudden pressure drop,and firing
LICENSE EXAM STUDY
GUIDE QUESTIONS AND
ANSWERS ALL VERIFIED BY
K
AN EXPECT A+ GRADED
C
LO
YC
D
U
ST
, What are the precautions to be observed when starting any boiler that
has been closed down overnight? Are there any special precautions
required starting a gas burning boiler?
Make a physical observation of the boiler and its systems, walk
around the boiler to check for any abnormal conditions such as
flammable material at the dampers, fuel leaks,damaged electrical
conduits, etc. Check all boiler systems (feedwater, fuel, etc). Very
K
important issue in starting a gas firing boiler is a furnace prepurge. It
never has to be altered or bypassed.
C
LO
How do you determine whether the feed water check valve for the
boiler is not closing?
Check the temperature differential at the check valve when the
YC
feedwater pump is not in operation.
What causes foaming in the boiler? How would you know when a
D
boiler is foaming? How do you stop foaming in a boiler?
High TDS, organic matter and oil in the boiler cases foaming. If the
U
water level in the gage glass fluctuates, the most probable cause of
ST
this is foaming. We reduce the amount of TDS by continuous and
bottom blowdowns;we use anti-foaming chemicals to prevent foaming.
What is boiler priming? What causes priming? How can priming in a
boiler damage an engine or pump?
When the liquid water from the boiler drum gets to the steam lines it is
called priming. Priming can be caused by boiler drum level
excessively high, by foaming, sudden pressure drop,and firing
