NCCER BOILERMAKER CORRECT EXAMS QUESTIONS
AND ANSWERS SET A+
✔✔On site, who determines what grade of material to be used for repair? - ✔✔QA/QC
✔✔What is the best tool to be used to prepare XXH 2-inch tubing for welding? -
✔✔Milling Motor
✔✔All of the following tools are used in preparation of the butt weld of a tube except? -
✔✔Chipping Gun
✔✔What preparation must be made for the Spring-Can hangers of a section of a pipe
before hydro testing can be - ✔✔No preparations must be made
✔✔Which of the following connecting units are used on pipe hangers? - ✔✔Eye Bolts,
Turnbuckles, Threaded Rods
✔✔Which of the following materials may be used to safely secure scaffold boards to a
platform? - ✔✔#9 Tie wire
✔✔For high temperature service, one end of a stud should be? - ✔✔Marked B16
✔✔How should bolts on a 8-bolt flange be tightened? - ✔✔In a cross over pattern
✔✔What is the primary reason for high-point vents in hydrotesting? - ✔✔To purge air
pockets
✔✔What are the most commonly used fasteners? - ✔✔Threaded bolts
✔✔Why must spring cans be adjusted after they are put into service? - ✔✔Because the
lines become heavier when they are in service
, ✔✔Variable spring-can supports should be used in what type of piping? - ✔✔Piping that
must be supported at all times during thermal expansion and contraction
✔✔Which of the following fasteners is used on concrete? - ✔✔Expansion anchor bolt
✔✔After installation of a variable pipe support, A boilermaker should verify the? -
✔✔Proposed length of travel has no obstruction
✔✔How should tubes be attached in drum holes? - ✔✔Rolled
✔✔Which of the following is most important when fitting up thick wall boiler tubing? -
✔✔The inside diameter must match up
✔✔What should be used to plug a tube at either end of a well to prevent air circulation?
- ✔✔Purge paper
✔✔What should be done before furnace fittings for tube replacements are ground? -
✔✔The inside of the fitting should be inspected
✔✔A reboiler in a tower is being hydrotested. The water should be at what level? -
✔✔Above the re-boiler
✔✔What is the preferred socket for tray work? - ✔✔12 point
✔✔How many types of bubble caps are there? - ✔✔6
✔✔Why does a boilermaker use a test tree that has a bleed valve when hydrotesting as
exchanger - ✔✔To drain condensation
✔✔What determines the type of bolts to be put back in an exchanger so that it can be
bolted back together? - ✔✔The service of the exchanger
✔✔What type of exchanger needs only one end for plugging tubes? - ✔✔Hairpin
✔✔The tube to tube sheet joint achieved by mechanical or explosive expansion of the
tube hole in the tube sheet is the? - ✔✔Expansion joint "J" Factor
✔✔What type of tank has legs on the roof? - ✔✔Floating roof
✔✔What information is required to locate a nozzle that will be installed on a vessel
shell? - ✔✔The elevation and degree of the center-line of the nozzle
AND ANSWERS SET A+
✔✔On site, who determines what grade of material to be used for repair? - ✔✔QA/QC
✔✔What is the best tool to be used to prepare XXH 2-inch tubing for welding? -
✔✔Milling Motor
✔✔All of the following tools are used in preparation of the butt weld of a tube except? -
✔✔Chipping Gun
✔✔What preparation must be made for the Spring-Can hangers of a section of a pipe
before hydro testing can be - ✔✔No preparations must be made
✔✔Which of the following connecting units are used on pipe hangers? - ✔✔Eye Bolts,
Turnbuckles, Threaded Rods
✔✔Which of the following materials may be used to safely secure scaffold boards to a
platform? - ✔✔#9 Tie wire
✔✔For high temperature service, one end of a stud should be? - ✔✔Marked B16
✔✔How should bolts on a 8-bolt flange be tightened? - ✔✔In a cross over pattern
✔✔What is the primary reason for high-point vents in hydrotesting? - ✔✔To purge air
pockets
✔✔What are the most commonly used fasteners? - ✔✔Threaded bolts
✔✔Why must spring cans be adjusted after they are put into service? - ✔✔Because the
lines become heavier when they are in service
, ✔✔Variable spring-can supports should be used in what type of piping? - ✔✔Piping that
must be supported at all times during thermal expansion and contraction
✔✔Which of the following fasteners is used on concrete? - ✔✔Expansion anchor bolt
✔✔After installation of a variable pipe support, A boilermaker should verify the? -
✔✔Proposed length of travel has no obstruction
✔✔How should tubes be attached in drum holes? - ✔✔Rolled
✔✔Which of the following is most important when fitting up thick wall boiler tubing? -
✔✔The inside diameter must match up
✔✔What should be used to plug a tube at either end of a well to prevent air circulation?
- ✔✔Purge paper
✔✔What should be done before furnace fittings for tube replacements are ground? -
✔✔The inside of the fitting should be inspected
✔✔A reboiler in a tower is being hydrotested. The water should be at what level? -
✔✔Above the re-boiler
✔✔What is the preferred socket for tray work? - ✔✔12 point
✔✔How many types of bubble caps are there? - ✔✔6
✔✔Why does a boilermaker use a test tree that has a bleed valve when hydrotesting as
exchanger - ✔✔To drain condensation
✔✔What determines the type of bolts to be put back in an exchanger so that it can be
bolted back together? - ✔✔The service of the exchanger
✔✔What type of exchanger needs only one end for plugging tubes? - ✔✔Hairpin
✔✔The tube to tube sheet joint achieved by mechanical or explosive expansion of the
tube hole in the tube sheet is the? - ✔✔Expansion joint "J" Factor
✔✔What type of tank has legs on the roof? - ✔✔Floating roof
✔✔What information is required to locate a nozzle that will be installed on a vessel
shell? - ✔✔The elevation and degree of the center-line of the nozzle
