Exam (elaborations)
NCCER (1)
Exam of 3 pages for the course nr360 at nr360 (NCCER (1))
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NCCERWhen spotting a channel head for installation, what bolts should be installed? - ANS-Bolts
behind nozzle/pad
When filling or draining a vessel for a hydrostatic test, should it be vented to avoid potential
problems? - ANS-Yes
If you were to fill an exchanger with water through a bleeder on the channel head, you would be
hydrostatically testing the side of what exchanger? - ANS-Tube Side
Identify part 6 of the Heat Exchanger - ANS-Shell
Identify part 5 of the Heat Exchanger - ANS-Tubes
Identify part 4 of the Heat exchanger - ANS-Baffle
Identify part 3 of the Heat Exchanger - ANS-Channel Head
Identify part 2 of the Heat Exchanger - ANS-Dollar Plate
Identify part 1 of the Heat Exchanger - ANS-Tube Sheet
When pulling a tube bundle which of the following precautions should be observed? - ANS--Pull
using eyebolts
-Support bundle on baffles
-Ensure no explosive vapors are present
-All of the above
Why are lockouts/tagouts used on valves, switches, and equipment? - ANS-To prevent
operation
A Boilermaker MUST remove a channel head from a threaded tubesheet without breaking which
of the following parts? - ANS-The seal between the tubesheet and the shell
After a bundle has been removed, the next step is to? - ANS-Clean it
When storing valves outside, what is the best option? - ANS-Store them upright
When rigging valves, you should rig valves by the? - ANS-Body
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