P99 LOW PRESSURE STEAM
BOILERS EXAM QUESTIONS AND
THEIR REVIEWED ANSWERS
Boilers are classified on the basis of one or more of
the following characteristics:
use
pressure
materials
size
fuel
relationship of the fluid to the products of combustion
method of draft control
furnace position
general shape
What is the definition of ASME
American Society of Mechanical Engineers
The ASME code classifies boilers by what
characteristics?
1. Low-pressure heating boilers - (all steam boilers
operating at pressures not in
excess of 103 kPa (15 psig).)
2. Power boilers are boilers in which steam or other
vapour is produced at
pressures greater than 15 psig (103 kPa gauge).
What type of boiler operates with a pressure of 15 psig
(103 kpa) and under?
Low-preassure boilers
, What type of boiler operates with a pressure greater
than 15 psig (103 kpa)?
Power boilers
What are some different types of materials that boilers
are constructed from?
Steel
Cast iron
Copper
special alloys
What are the materials that make up the two different
types of steam boiler heat exchangers?
Cast iron and copper
Cast iron and stainless steel
What materials make up the different types of Flash
boiler heat exchangers?
Steel tube
Copper tube
Who sets the standards based on size ratings for
heating boilers?
Institute of Boiler and Radiator Manufactures (IBR)
Steel Boiler Institute (SBI)
The SBI rating code for steel boilers standardizes the
size and rating of what types of boilers?
-Steel firebox boilers
-Scotch boilers
-boiler-burner units
-steel heading boilers
-(except vertical types for over 15 psi steam service).
What are the different sources in which boiler water
can be heated?
BOILERS EXAM QUESTIONS AND
THEIR REVIEWED ANSWERS
Boilers are classified on the basis of one or more of
the following characteristics:
use
pressure
materials
size
fuel
relationship of the fluid to the products of combustion
method of draft control
furnace position
general shape
What is the definition of ASME
American Society of Mechanical Engineers
The ASME code classifies boilers by what
characteristics?
1. Low-pressure heating boilers - (all steam boilers
operating at pressures not in
excess of 103 kPa (15 psig).)
2. Power boilers are boilers in which steam or other
vapour is produced at
pressures greater than 15 psig (103 kPa gauge).
What type of boiler operates with a pressure of 15 psig
(103 kpa) and under?
Low-preassure boilers
, What type of boiler operates with a pressure greater
than 15 psig (103 kpa)?
Power boilers
What are some different types of materials that boilers
are constructed from?
Steel
Cast iron
Copper
special alloys
What are the materials that make up the two different
types of steam boiler heat exchangers?
Cast iron and copper
Cast iron and stainless steel
What materials make up the different types of Flash
boiler heat exchangers?
Steel tube
Copper tube
Who sets the standards based on size ratings for
heating boilers?
Institute of Boiler and Radiator Manufactures (IBR)
Steel Boiler Institute (SBI)
The SBI rating code for steel boilers standardizes the
size and rating of what types of boilers?
-Steel firebox boilers
-Scotch boilers
-boiler-burner units
-steel heading boilers
-(except vertical types for over 15 psi steam service).
What are the different sources in which boiler water
can be heated?
