1|Page
UP STATIONARY GRADE 3 ENGINEERING LICENSE
EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST 2024 –
2025 ALREADY GRADED A+
how can you loose your license? - (answers)1) drinking on the job
2) sleeping on the job
3) negligence
4) unsafe work
5) signing a falsified license application for someone
6) failing to renew your license annually
what must you do if you change jobs? - (answers)notify city hall if you change
jobs, address or retire
why should you do rounds? - (answers)Find and correct problems to prevent
breakdowns. keeping permanent records will make it easy to forecast most
breakdowns because you will get to know equipment
what is a steam boiler? - (answers)closed vessel, PARTIALLY FILLED WITH WATER,
under pressure that transforms water to steam with the application of heat.
what are the requirements of a good boiler? - (answers)1) simple
2) designed to accommodate expansion and contraction
3) adequate steam and water space
,2|Page
4) efficient
5) responsive to demands
6) accessible for cleaning and repairs
7) safe
Name and describe 3 types of heat transfer used in boiler operation - (answers)1)
RADIANT HEAT - transmitted from hot body to a cold body by means of direct
radiation (heat from sun reaches us by radiation)
2) CONDUCTION - physical contact (coffee cup is heated by conduction when hot
coffee touches the cup)
3) CONVECTION - carried along by a moving part such as air or water (your living
room is heated by warm air from your furnace in another location
what is a combustion chamber? - (answers)the area of the boiler where
COMPLETE burning of the fuel occurs
what is an internally fired boiler?
-----
name 4 types - (answers)those in which the grate and combustion chamber are
enclosed within the boiler shell.
-----
1) Scotch marine
,3|Page
2) Vertical firetube
3) Locomotive
4) Cast iron package boiler
what is an externally fired boiler
-----
name 4 types - (answers)the setting, including the furnace and grates is separate
and distinct from the boiler shell.
-----
1) horizontal return tubular (HRT) set in brick
2) some watertube
3) cast iron set in brick
4) Stirling boiler
5) Heine boiler
what is a crown sheet and its purpose?
-----
what is a tube sheet and its purpose? - (answers)in a vertical firetube boiler holds
the tubes and is thicker because it is exposed to the fire.
-----
holds the tubes and does not see the fire
, 4|Page
what is a waterleg on a boiler? - (answers)space between the outer shell and the
furnace containing boiler water. it absorbs heat that would be wasted and
increases the capacity of the boiler. the surfaces are flat and must be stayed.
is an HRT Boiler set level or inclined and why?
-----
are HRT Boiler tubes set level or inclined and why? - (answers)INCLINED 1-3" front
to rear to permit drainage and removal of water impurities
-----
INCLINED with the boiler
Name 2 way to support and take care of expansion of an HRT Boiler
-----
Which way is best? - (answers)1) Suspended from hangars and supported by
overhead beams
2) Set on saddles equipped with rollers to permit movement of the boiler as it
expands and contracts
-----
Suspended from hangars and supported by overhead beams is best because it
works no hardship on the furnace walls
what is a longitudinal joint?
-----
UP STATIONARY GRADE 3 ENGINEERING LICENSE
EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST 2024 –
2025 ALREADY GRADED A+
how can you loose your license? - (answers)1) drinking on the job
2) sleeping on the job
3) negligence
4) unsafe work
5) signing a falsified license application for someone
6) failing to renew your license annually
what must you do if you change jobs? - (answers)notify city hall if you change
jobs, address or retire
why should you do rounds? - (answers)Find and correct problems to prevent
breakdowns. keeping permanent records will make it easy to forecast most
breakdowns because you will get to know equipment
what is a steam boiler? - (answers)closed vessel, PARTIALLY FILLED WITH WATER,
under pressure that transforms water to steam with the application of heat.
what are the requirements of a good boiler? - (answers)1) simple
2) designed to accommodate expansion and contraction
3) adequate steam and water space
,2|Page
4) efficient
5) responsive to demands
6) accessible for cleaning and repairs
7) safe
Name and describe 3 types of heat transfer used in boiler operation - (answers)1)
RADIANT HEAT - transmitted from hot body to a cold body by means of direct
radiation (heat from sun reaches us by radiation)
2) CONDUCTION - physical contact (coffee cup is heated by conduction when hot
coffee touches the cup)
3) CONVECTION - carried along by a moving part such as air or water (your living
room is heated by warm air from your furnace in another location
what is a combustion chamber? - (answers)the area of the boiler where
COMPLETE burning of the fuel occurs
what is an internally fired boiler?
-----
name 4 types - (answers)those in which the grate and combustion chamber are
enclosed within the boiler shell.
-----
1) Scotch marine
,3|Page
2) Vertical firetube
3) Locomotive
4) Cast iron package boiler
what is an externally fired boiler
-----
name 4 types - (answers)the setting, including the furnace and grates is separate
and distinct from the boiler shell.
-----
1) horizontal return tubular (HRT) set in brick
2) some watertube
3) cast iron set in brick
4) Stirling boiler
5) Heine boiler
what is a crown sheet and its purpose?
-----
what is a tube sheet and its purpose? - (answers)in a vertical firetube boiler holds
the tubes and is thicker because it is exposed to the fire.
-----
holds the tubes and does not see the fire
, 4|Page
what is a waterleg on a boiler? - (answers)space between the outer shell and the
furnace containing boiler water. it absorbs heat that would be wasted and
increases the capacity of the boiler. the surfaces are flat and must be stayed.
is an HRT Boiler set level or inclined and why?
-----
are HRT Boiler tubes set level or inclined and why? - (answers)INCLINED 1-3" front
to rear to permit drainage and removal of water impurities
-----
INCLINED with the boiler
Name 2 way to support and take care of expansion of an HRT Boiler
-----
Which way is best? - (answers)1) Suspended from hangars and supported by
overhead beams
2) Set on saddles equipped with rollers to permit movement of the boiler as it
expands and contracts
-----
Suspended from hangars and supported by overhead beams is best because it
works no hardship on the furnace walls
what is a longitudinal joint?
-----
