UPSTATIONARY GRADE 3 ENGINEERING
LICENSE EXAM WITH QUESTIONS AND
ANSWERS || LATEST 2024/2025
how can you loose your license? - CORRECT ANSWER : 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? - CORRECT ANSWER
: notify city hall if you change jobs, address or retire
why should you do rounds? - CORRECT ANSWER : 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? - CORRECT ANSWER : 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? - CORRECT
ANSWER : 1) simple
2) designed to accommodate expansion and contraction
3) adequate steam and water space
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 - CORRECT ANSWER : 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? - CORRECT ANSWER : the
area of the boiler where COMPLETE burning of the fuel occurs
what is an internally fired boiler?
-----
name 4 types - CORRECT ANSWER : those in which the
grate and combustion chamber are enclosed within the boiler
shell.
-----
1) Scotch marine
2) Vertical firetube
3) Locomotive
4) Cast iron package boiler
what is an externally fired boiler
-----
name 4 types - CORRECT ANSWER : 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? - CORRECT ANSWER :
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
what is a waterleg on a boiler? - CORRECT ANSWER : 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? -
CORRECT ANSWER : INCLINED 1-3" front to rear to
permit drainage and removal of water impurities
-----
LICENSE EXAM WITH QUESTIONS AND
ANSWERS || LATEST 2024/2025
how can you loose your license? - CORRECT ANSWER : 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? - CORRECT ANSWER
: notify city hall if you change jobs, address or retire
why should you do rounds? - CORRECT ANSWER : 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? - CORRECT ANSWER : 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? - CORRECT
ANSWER : 1) simple
2) designed to accommodate expansion and contraction
3) adequate steam and water space
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 - CORRECT ANSWER : 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? - CORRECT ANSWER : the
area of the boiler where COMPLETE burning of the fuel occurs
what is an internally fired boiler?
-----
name 4 types - CORRECT ANSWER : those in which the
grate and combustion chamber are enclosed within the boiler
shell.
-----
1) Scotch marine
2) Vertical firetube
3) Locomotive
4) Cast iron package boiler
what is an externally fired boiler
-----
name 4 types - CORRECT ANSWER : 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? - CORRECT ANSWER :
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
what is a waterleg on a boiler? - CORRECT ANSWER : 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? -
CORRECT ANSWER : INCLINED 1-3" front to rear to
permit drainage and removal of water impurities
-----
