Examination #2 Exam Questions And
Answers
All Boilers should be viewed as - - correct answer ✅Dangerous
regardless of size and pressure
One cubic inch of hot water under pressure expands to - - correct
answer ✅almost one cubic foot of steam at atmospheric pressure
Primary air is usually... - - correct answer ✅Blown into the
combustion chamber, along with the fuel on a gas or oil burner.
Heat always flows from ____ to ____ - - correct answer ✅hot to
cold
An accumulation test is used to determine - - correct answer ✅the
relieving capacity of a safety valve
Staging is a method used to - - correct answer ✅increase the
pressure of a gas or liquid in step rather than all at once.
All vacuum return heating systems require - - correct answer
✅traps
,1st Class Stationary Engineers
Examination #2 Exam Questions And
Answers
Boiler water can be conditioned by - - correct answer ✅heating
addition of chemicals and by blow down
Water which contains scale-forming impurities is termed - - correct
answer ✅hard water
33,478 BTUs equal - - correct answer ✅One boiler horsepower
One purpose of automatic control is to insure - - correct answer
✅the safe operation of a system
Is it possible to find all three types of heat transfer working at the
same time? - - correct answer ✅Yes
A vapor can best be defined as a - - correct answer ✅physical
state between a liquid and a gas
a firetube contains - - correct answer ✅the products of
combustion
, 1st Class Stationary Engineers
Examination #2 Exam Questions And
Answers
a pigtail is used on a steam gauge connection to - - correct answer
✅prevent damage to the gauge
a convection type superheater - - correct answer ✅absorbs its
heat from the hot gases of combustion
All residential air conditioners use - - correct answer ✅Freon
A hydrostatic test is a test for - - correct answer ✅the tightness of
boiler drums and tubes
One of the most important aspects of a boiler plant is the - - correct
answer ✅Boiler supply
One BTU will raise the temperature of one pound of water by - -
correct answer ✅one degree fahrenheit
Steam and water can be found - - correct answer ✅at the same
temperature in a boiler
Superheated steam is always - - correct answer ✅Dry