L68 LESSON 3- BOILER TRIM EXAM
QUESTIONS & ACTUAL COMPLETE
SOLUTIONS
Globe valves are primarily used for? - CORRECT ANSWER Regulation, Control and
Throttling
What percent boiler load do you manually test safety valves? - CORRECT ANSWER
75%
The water column and the gauge glass are to be blown down? - CORRECT ANSWER
Daily
When discussing single, 2-element, and 3-element feed water control, The one type of
control that remains the same would be? - CORRECT ANSWER Drum level
The boiler is priming. How do you remedy this problem? - CORRECT ANSWER
Blowdown boiler to correct level
When does a boiler require 2 blow down valves? - CORRECT ANSWER Over 100 PSI
operating pressure
The boiler feedwater stop valve is located between the ___________ and the
____________. - CORRECT ANSWER boiler; check valve
The primary purpose of the _____ ____ is to provide an accurate reading of the water
level. - CORRECT ANSWER water column
Water columns are to be connected to the boiler using piping with a diameter of no less
than? - CORRECT ANSWER 1 inch
What is the minimum size blowdown line permitted for the gauge glass? - CORRECT
ANSWER 3/8 inch
Accumulation test are not performed on boilers that have? - CORRECT ANSWER
Super heaters
The continuous blow down is designed to control? - CORRECT ANSWER Total
Dissolved Solids (TDS)
Gate valves are primarily used for _____. - CORRECT ANSWER isolation
QUESTIONS & ACTUAL COMPLETE
SOLUTIONS
Globe valves are primarily used for? - CORRECT ANSWER Regulation, Control and
Throttling
What percent boiler load do you manually test safety valves? - CORRECT ANSWER
75%
The water column and the gauge glass are to be blown down? - CORRECT ANSWER
Daily
When discussing single, 2-element, and 3-element feed water control, The one type of
control that remains the same would be? - CORRECT ANSWER Drum level
The boiler is priming. How do you remedy this problem? - CORRECT ANSWER
Blowdown boiler to correct level
When does a boiler require 2 blow down valves? - CORRECT ANSWER Over 100 PSI
operating pressure
The boiler feedwater stop valve is located between the ___________ and the
____________. - CORRECT ANSWER boiler; check valve
The primary purpose of the _____ ____ is to provide an accurate reading of the water
level. - CORRECT ANSWER water column
Water columns are to be connected to the boiler using piping with a diameter of no less
than? - CORRECT ANSWER 1 inch
What is the minimum size blowdown line permitted for the gauge glass? - CORRECT
ANSWER 3/8 inch
Accumulation test are not performed on boilers that have? - CORRECT ANSWER
Super heaters
The continuous blow down is designed to control? - CORRECT ANSWER Total
Dissolved Solids (TDS)
Gate valves are primarily used for _____. - CORRECT ANSWER isolation
