Boiler Maintenance Exam Questions and
Answers 100% Solved
What must be done to the tube to prevent an increase in pressure
and the possibility of blowing the plug out of the tube after
plugging if a boiler tube cannot be removed immediately because
of its location in the boiler and a decision is made to plug the tube -
correct answer ✅Puncture
What is the proper procedure for dipping the bricks in mortar when
laying firebrick with mortar in place -
correct answer ✅Dip one end of the brick into the mortar, and
then with a wiping motion dip the bottom of the brick
How is mortared firebrick tapped in place once the mortared fire
brick is laid into position -
correct answer ✅Tap it firmly, both side wise and backwards, so
that it will be forced into position
What is the required size of mortared joints when installing
firebrick -
correct answer ✅1/16"
Which type of burner front cracks are caused by stresses resulting
from normal expansion and contraction -
correct answer ✅Radial
,Boiler Maintenance Exam Questions and
Answers 100% Solved
Which type of burner front cracks eventually results in extensive
damage and run approximately parallel to the surface of the burner
front -
correct answer ✅Parallel
An excess of which substance was probably used in mixing the
material during installation of a castable burner if the front breaks
up after very little use -
correct answer ✅Water
What is the loss of firebrick through cracking and subsequent
breaking or crumbling called -
correct answer ✅Spalling
Spalling along with what else are the two main causes of refractory
deterioration -
correct answer ✅Slagging
What is formed by ash and other unburnable materials such as
seawater solids that react with brick work -
correct answer ✅SLAG
, Boiler Maintenance Exam Questions and
Answers 100% Solved
Which type of firebrick damage can be caused by lowering boiler
furnace temperatures too rapidly -
correct answer ✅Deep fractures
Where is Firebrick likely to break at when raising the boiler furnace
temperature too rapidly -
correct answer ✅Anchor bolts
What is installed to provide space for the refractories to expand
without putting pressure on the linings -
correct answer ✅Expansion joints
Castable should not be mixed until all preparations have been made
for installing the burner front since the material begins to set at
once and must be discarded if it is not used within how many
minutes -
correct answer ✅30
Plastic is vented at how many inch intervals along the center line
when using plastic fire clay for burner cone installation -
correct answer ✅2"
Answers 100% Solved
What must be done to the tube to prevent an increase in pressure
and the possibility of blowing the plug out of the tube after
plugging if a boiler tube cannot be removed immediately because
of its location in the boiler and a decision is made to plug the tube -
correct answer ✅Puncture
What is the proper procedure for dipping the bricks in mortar when
laying firebrick with mortar in place -
correct answer ✅Dip one end of the brick into the mortar, and
then with a wiping motion dip the bottom of the brick
How is mortared firebrick tapped in place once the mortared fire
brick is laid into position -
correct answer ✅Tap it firmly, both side wise and backwards, so
that it will be forced into position
What is the required size of mortared joints when installing
firebrick -
correct answer ✅1/16"
Which type of burner front cracks are caused by stresses resulting
from normal expansion and contraction -
correct answer ✅Radial
,Boiler Maintenance Exam Questions and
Answers 100% Solved
Which type of burner front cracks eventually results in extensive
damage and run approximately parallel to the surface of the burner
front -
correct answer ✅Parallel
An excess of which substance was probably used in mixing the
material during installation of a castable burner if the front breaks
up after very little use -
correct answer ✅Water
What is the loss of firebrick through cracking and subsequent
breaking or crumbling called -
correct answer ✅Spalling
Spalling along with what else are the two main causes of refractory
deterioration -
correct answer ✅Slagging
What is formed by ash and other unburnable materials such as
seawater solids that react with brick work -
correct answer ✅SLAG
, Boiler Maintenance Exam Questions and
Answers 100% Solved
Which type of firebrick damage can be caused by lowering boiler
furnace temperatures too rapidly -
correct answer ✅Deep fractures
Where is Firebrick likely to break at when raising the boiler furnace
temperature too rapidly -
correct answer ✅Anchor bolts
What is installed to provide space for the refractories to expand
without putting pressure on the linings -
correct answer ✅Expansion joints
Castable should not be mixed until all preparations have been made
for installing the burner front since the material begins to set at
once and must be discarded if it is not used within how many
minutes -
correct answer ✅30
Plastic is vented at how many inch intervals along the center line
when using plastic fire clay for burner cone installation -
correct answer ✅2"
