PE 4B 140 Boiler Maintenance Exam
Questions & Answers (Grade A+)
When plugging off a tube in the boiler, the plug taper should be
A) 10-1 B) 20-1 C) 15 to 2 -
correct answer ✅20 to 1
Who should be responsible for doing frequent boiler inspections? -
correct answer ✅The boiler operator
A steam heating boiler to be shut down for 6 months during
summer should be:
A) drained, dried, slaked lime inside & left open
B) drained, dried, slaked lime inside & closed up
C) left w/water at normal lvl but open to atm
D) left w/water at normal lvl but under 50 kPa
E) a completely water filled BLR -vent open to atm -
correct answer ✅B) drained, dried, slaked lime inside & closed up
The final step in replacing a fire tube is
A) closing the boiler
B) ensuring tools & debris are removed
C) hydrostatic test
, PE 4B 140 Boiler Maintenance Exam
Questions & Answers (Grade A+)
D) informing boiler inspector tube is replaced -
correct answer ✅hydrostatic test
Who is qualified to do a weld repair on boilers & pressure vessels?
A) shift engineer B) millwright C) Pressure Welder
D) Pipefitter -
correct answer ✅Pressure Welder
State the name of the device that's used to detect fine cracks when
used in combination w/ fluorescent penetrant. -
correct answer ✅Black light
What should you do with a boiler 3 months after installation &
commissioning? -
correct answer ✅Shut down, drain, open it up flush out with High
pressure hose and inspect it.
What are the steps to cleaning fire tubes? -
correct answer ✅Open front & rear doors to reversing camber.
Remove flame retarders, Use a brush to remove soot.
Questions & Answers (Grade A+)
When plugging off a tube in the boiler, the plug taper should be
A) 10-1 B) 20-1 C) 15 to 2 -
correct answer ✅20 to 1
Who should be responsible for doing frequent boiler inspections? -
correct answer ✅The boiler operator
A steam heating boiler to be shut down for 6 months during
summer should be:
A) drained, dried, slaked lime inside & left open
B) drained, dried, slaked lime inside & closed up
C) left w/water at normal lvl but open to atm
D) left w/water at normal lvl but under 50 kPa
E) a completely water filled BLR -vent open to atm -
correct answer ✅B) drained, dried, slaked lime inside & closed up
The final step in replacing a fire tube is
A) closing the boiler
B) ensuring tools & debris are removed
C) hydrostatic test
, PE 4B 140 Boiler Maintenance Exam
Questions & Answers (Grade A+)
D) informing boiler inspector tube is replaced -
correct answer ✅hydrostatic test
Who is qualified to do a weld repair on boilers & pressure vessels?
A) shift engineer B) millwright C) Pressure Welder
D) Pipefitter -
correct answer ✅Pressure Welder
State the name of the device that's used to detect fine cracks when
used in combination w/ fluorescent penetrant. -
correct answer ✅Black light
What should you do with a boiler 3 months after installation &
commissioning? -
correct answer ✅Shut down, drain, open it up flush out with High
pressure hose and inspect it.
What are the steps to cleaning fire tubes? -
correct answer ✅Open front & rear doors to reversing camber.
Remove flame retarders, Use a brush to remove soot.
