BoilerMaker Test Flashcards
Which type of washer is rarely used during tray installation?
Lock
The most common wrench size used for tray work is a _____?
9/16”
You just turned the water on and the bottom two rows of tubes are already leaking. What is most likely wrong?
There is a problem with the floating head gasket
Odd and even frequency refers to _____?
Tray configuration (in towers)
A reboiler is a type of _____?
Exchanger
Tag lines are used to _____?
Control a load being hoisted by a crane
A 2-3/8” wrench would be used to remove nuts on what size studs?
1-1/2”
If you had to “cut” a “blind” what would you be doing?
Use a cutting torch to cut a piece of plate into a skillet shaped object used to isolate a system.
A mud drum is found where?
In a boiler
The term “pigging” refers to _____?
The process used to clean furnace tubes
A temporary lifting lug needs to be removed. It has been cut to 1” from the wall of the vessel and it needs to be completely removed. How would you proceed?
Gouge or wash then blend grind (smooth out)
Unless otherwise specified, on a tower drawing, 0 degrees is _____?
North
If you wanted to see the tubes on a heat exchanger while doing a hydro test, which part should be off during assembly?
Remove the tube sheets (or end caps)
Location of a demister pad is _____?
Top of tower
What is the difference between a test blind and an isolation blind?
Thickness
What determines the thickness of a “slip” blind?
Pressure rating of system and / or flanges
Why is it important to look at the nozzles on both the shell and the channel box before you proceed to install the channel box?
Certain bolts may need to be in place before installation
The term “piggy-backed” is often used to describe certain exchangers. Pick the best description?
A stack of two or more exchangers joined with flanges to work together
Tubes can be found in each of the items below except _____?
Compressor
“Tunneling” refers to what activity?
Removing internal manways in a tower
