MA 2ND CLASS FIREMAN’S EXAM AND PRACTICE EXAM
NEWEST 2025 COMPLETE EXAM 400 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
6 advantages of a fire tube package boiler? - - ANS✔️--1. Lower cost
2. Superior quality control
3. Turn-key operation
4. Limited space requirements
5. No setting requirements
6. Automatic operation
How are water tube boilers classified? - - ANS✔️--Straight or bent tube,
and by the number of drums
Why are water tube boilers used in electric generating plants? - -
ANS✔️--High capacity, versatile pressure and flow capacity, can be
,constructed in a variety of sizes, can burn a variety of fuels, lots of
heat recovery options.
5 types of water tube boilers? - - ANS✔️--B&W longitudinal/cross drum
Heine
Stirling Boiler
Universal pressure/Supercritical
Heat recovery steam generator (HRSG)
Name 3 forms of circulation in water tube boilers - - ANS✔️--Natural
Controlled
Forced
How many pressure gauges are required on a boiler and what pressure
should it be capable of reading. - - ANS✔️--At least one pressure gauge
is required and should be required of reading 1 1/2 times the MAWP
, How many safety valves are required on a boiler? - - ANS✔️--At least
one safety valve is required on a boiler, boilers with more than 500 ft/2
of heating surface require 2 safety valves.
Name 3 special purpose boilers. - - ANS✔️--Electric boilers, miniature
boilers, high temperature hot water boilers
What is a longitudinal joint? A circumferential joint? - - ANS✔️--A
longitudinal joint runs the length of the shell
A circumferential joint are used to create the cylinder
what purpose does the water column serve? - - ANS✔️--Where the
turbulence in the drum settles in order to prevent the gage glass from
varying widely during operation.
What are the 3 forms of heat transfer in a boiler? - - ANS✔️--1. Radiation
- heat of flame
2. Conduction - transfer of heat through the tube walls to the water
3. Convection - an oven
NEWEST 2025 COMPLETE EXAM 400 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
6 advantages of a fire tube package boiler? - - ANS✔️--1. Lower cost
2. Superior quality control
3. Turn-key operation
4. Limited space requirements
5. No setting requirements
6. Automatic operation
How are water tube boilers classified? - - ANS✔️--Straight or bent tube,
and by the number of drums
Why are water tube boilers used in electric generating plants? - -
ANS✔️--High capacity, versatile pressure and flow capacity, can be
,constructed in a variety of sizes, can burn a variety of fuels, lots of
heat recovery options.
5 types of water tube boilers? - - ANS✔️--B&W longitudinal/cross drum
Heine
Stirling Boiler
Universal pressure/Supercritical
Heat recovery steam generator (HRSG)
Name 3 forms of circulation in water tube boilers - - ANS✔️--Natural
Controlled
Forced
How many pressure gauges are required on a boiler and what pressure
should it be capable of reading. - - ANS✔️--At least one pressure gauge
is required and should be required of reading 1 1/2 times the MAWP
, How many safety valves are required on a boiler? - - ANS✔️--At least
one safety valve is required on a boiler, boilers with more than 500 ft/2
of heating surface require 2 safety valves.
Name 3 special purpose boilers. - - ANS✔️--Electric boilers, miniature
boilers, high temperature hot water boilers
What is a longitudinal joint? A circumferential joint? - - ANS✔️--A
longitudinal joint runs the length of the shell
A circumferential joint are used to create the cylinder
what purpose does the water column serve? - - ANS✔️--Where the
turbulence in the drum settles in order to prevent the gage glass from
varying widely during operation.
What are the 3 forms of heat transfer in a boiler? - - ANS✔️--1. Radiation
- heat of flame
2. Conduction - transfer of heat through the tube walls to the water
3. Convection - an oven
