Omaha 3rd Grade Stationary Engineering Practice
Exam Questions and Answers Latest Version
Question >> 1
What are the advantages of a super heater?
Answer >>
increased efficiency of the boiler delivering dryer steam
dryer steam can be pushed further while maintaining a desired temperature less corrosion
in piping
Question >> 2
What must you do if you change jobs?
Answer >>
You must notify City Hall if you change jobs, change address or retire
Question >> 3
Why should you do rounds?
Answer >>
Page 1 of 51
,Find and correct problems to prevent breakdowns.
keeping permanent records will make it easy to forecast most breakdowns because you will
get to know your equipment
Question >> 4
What is a steam boiler?
Answer >>
A closed vessel partly filled with water, under pressure, that transforms water into steam
with the application of heat.
Question >> 5
What are the requirements of a good boiler?
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
Page 2 of 51
,Question >> 6
Name and describe three types of heat transfer used in boiler operations.
Answer >>
Radiant Heat
Conduction Heat Convection Heat
Question >> 7
Radiant Heat
Answer >>
is heat radiated from a hot to cold body and depends on the temperature difference and
the color of the body that receives the heat. The heat from the sun reaches us by means of
radiation.
Question >> 8
Conduction Heat
Answer >>
is heat that passes from the gas to the tube by physical contact. The heat passes from
molecule of metal to molecule of metal with no displacement of the molecules
Page 3 of 51
, Question >> 9
Convection Heat
Answer >>
is heat transmitted from a hot to cold body by movement of the conveying substance.
Question >> 10
What is a combustion chamber?
Answer >>
The area of the boiler where the complete burning of the fuel occurs.
Question >> 11
What is an internally fired boiler?
Answer >>
Internally fired boilers are those in which the grate and combustion chamber are enclosed
within the boiler shell.
Question >> 12
Name four types of internally fired boilers
Answer >>
Page 4 of 51
Exam Questions and Answers Latest Version
Question >> 1
What are the advantages of a super heater?
Answer >>
increased efficiency of the boiler delivering dryer steam
dryer steam can be pushed further while maintaining a desired temperature less corrosion
in piping
Question >> 2
What must you do if you change jobs?
Answer >>
You must notify City Hall if you change jobs, change address or retire
Question >> 3
Why should you do rounds?
Answer >>
Page 1 of 51
,Find and correct problems to prevent breakdowns.
keeping permanent records will make it easy to forecast most breakdowns because you will
get to know your equipment
Question >> 4
What is a steam boiler?
Answer >>
A closed vessel partly filled with water, under pressure, that transforms water into steam
with the application of heat.
Question >> 5
What are the requirements of a good boiler?
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
Page 2 of 51
,Question >> 6
Name and describe three types of heat transfer used in boiler operations.
Answer >>
Radiant Heat
Conduction Heat Convection Heat
Question >> 7
Radiant Heat
Answer >>
is heat radiated from a hot to cold body and depends on the temperature difference and
the color of the body that receives the heat. The heat from the sun reaches us by means of
radiation.
Question >> 8
Conduction Heat
Answer >>
is heat that passes from the gas to the tube by physical contact. The heat passes from
molecule of metal to molecule of metal with no displacement of the molecules
Page 3 of 51
, Question >> 9
Convection Heat
Answer >>
is heat transmitted from a hot to cold body by movement of the conveying substance.
Question >> 10
What is a combustion chamber?
Answer >>
The area of the boiler where the complete burning of the fuel occurs.
Question >> 11
What is an internally fired boiler?
Answer >>
Internally fired boilers are those in which the grate and combustion chamber are enclosed
within the boiler shell.
Question >> 12
Name four types of internally fired boilers
Answer >>
Page 4 of 51
