PIPE FITTER 2026 LATEST ALL QUESTIONS AND
ANSWERS SURE A+
✔✔What is the input rating of a boiler? - ✔✔The rate at which fuel is supplied to the
boiler
✔✔What is the net rating of the boiler? - ✔✔Amount of heat available from a boiler at
the point of use
✔✔A boiler with a firebox not completely surrounded by water is classified as a
____________ boiler? - ✔✔Firebox
✔✔A boiler consisting of a shell containing an internal firetube and straight tubes
through which the hot gases from the fire travel would be classified as a __________
boiler - ✔✔Firetube
✔✔A boiler consisting of an arrangement of drums and headers interconnected by
tubes is classified as a ____________ boiler - ✔✔Water tube
✔✔The gross rating of a boiler is taken at ___________ - ✔✔Boiler nozzle
✔✔The net rating of a boiler is taken at ____________ - ✔✔Heat emission unit
✔✔Are firebox boilers the least efficient? - ✔✔Yes
✔✔Firebox boilers are made from the thickest boiler steel material - ✔✔True
✔✔What is a pro of a watertube boiler? - ✔✔Chosen for applications having large
variances in load demand. Frequent the load swings over long periods
✔✔What is another pro of watertube boilers? - ✔✔They can respond and adjust to
variances more quickly.
, ✔✔Which boiler is 90% or more efficient? - ✔✔Condensing boiler
✔✔What is a pro of a firetube boiler? - ✔✔Good for use of sudden demands for larger
volumes
✔✔What is another way to classify firetube boilers? - ✔✔High mass boiler
✔✔What is another way to classify watertube boilers? - ✔✔Low mass boiler
✔✔What is the main advantage of steam over hydronic systems? - ✔✔Moves faster
and is more efficient
✔✔The watertube boiler can respond to sudden demands for large volumes of steam
for a short period - ✔✔True
✔✔The firetube boiler can handle wide variations in load over a long period - ✔✔True
✔✔The firebox boiler removes the latent heat from the glue gases and requires a
drainpipe on the venting system - ✔✔True
✔✔What to do when installing a boiler? - ✔✔ALWAYS REFER TO
MANUFACTURER!!!!
✔✔What is "foaming" in a boiler? - ✔✔The formation of non-bursting bubbles that
collect at the top of the boiler water during operation
✔✔What is a sign that foaming, priming or carryover is occurring? - ✔✔Wide
fluctuations of the operating boiler water line
✔✔What is "priming" in a boiler? - ✔✔When there is inadequate space between the
surface of the water in the boiler and the steam take-off nozzles
✔✔What should the PH in boiler water maintain? - ✔✔7-9
✔✔What can the wrong PH level of water in a boiler influence? - ✔✔Foaming
✔✔If the water in a boiler is not pure, what can start happening? - ✔✔Scaling
✔✔When is "blowoff" of a boiler required? - ✔✔To control the concentration of solids in
the boiler
ANSWERS SURE A+
✔✔What is the input rating of a boiler? - ✔✔The rate at which fuel is supplied to the
boiler
✔✔What is the net rating of the boiler? - ✔✔Amount of heat available from a boiler at
the point of use
✔✔A boiler with a firebox not completely surrounded by water is classified as a
____________ boiler? - ✔✔Firebox
✔✔A boiler consisting of a shell containing an internal firetube and straight tubes
through which the hot gases from the fire travel would be classified as a __________
boiler - ✔✔Firetube
✔✔A boiler consisting of an arrangement of drums and headers interconnected by
tubes is classified as a ____________ boiler - ✔✔Water tube
✔✔The gross rating of a boiler is taken at ___________ - ✔✔Boiler nozzle
✔✔The net rating of a boiler is taken at ____________ - ✔✔Heat emission unit
✔✔Are firebox boilers the least efficient? - ✔✔Yes
✔✔Firebox boilers are made from the thickest boiler steel material - ✔✔True
✔✔What is a pro of a watertube boiler? - ✔✔Chosen for applications having large
variances in load demand. Frequent the load swings over long periods
✔✔What is another pro of watertube boilers? - ✔✔They can respond and adjust to
variances more quickly.
, ✔✔Which boiler is 90% or more efficient? - ✔✔Condensing boiler
✔✔What is a pro of a firetube boiler? - ✔✔Good for use of sudden demands for larger
volumes
✔✔What is another way to classify firetube boilers? - ✔✔High mass boiler
✔✔What is another way to classify watertube boilers? - ✔✔Low mass boiler
✔✔What is the main advantage of steam over hydronic systems? - ✔✔Moves faster
and is more efficient
✔✔The watertube boiler can respond to sudden demands for large volumes of steam
for a short period - ✔✔True
✔✔The firetube boiler can handle wide variations in load over a long period - ✔✔True
✔✔The firebox boiler removes the latent heat from the glue gases and requires a
drainpipe on the venting system - ✔✔True
✔✔What to do when installing a boiler? - ✔✔ALWAYS REFER TO
MANUFACTURER!!!!
✔✔What is "foaming" in a boiler? - ✔✔The formation of non-bursting bubbles that
collect at the top of the boiler water during operation
✔✔What is a sign that foaming, priming or carryover is occurring? - ✔✔Wide
fluctuations of the operating boiler water line
✔✔What is "priming" in a boiler? - ✔✔When there is inadequate space between the
surface of the water in the boiler and the steam take-off nozzles
✔✔What should the PH in boiler water maintain? - ✔✔7-9
✔✔What can the wrong PH level of water in a boiler influence? - ✔✔Foaming
✔✔If the water in a boiler is not pure, what can start happening? - ✔✔Scaling
✔✔When is "blowoff" of a boiler required? - ✔✔To control the concentration of solids in
the boiler
