MN BOILER LICENSE QUESTIONS /
ACTUAL TEST QUESTIONS WITH DETAILED
VERIFIED ANSWERS / ALREADY GRADED A.
Terms in this set (250+)
Question Answer
what are the conditionsc) turbulence, temperature, time 3T's
necessary for good combustion?
a) low sulfur content
b)
Thermal,thermocoupler,
tubular c) turbulence,
temperature, time 3T's
why is secondary air a) Necessary to burn the combustible gases
necessary in hand fired
boilers?
a) Necessary to burn
thecombustible gases
b) if primary air should
fail
c) used only if
sulfurcontent is high
b) decreases
when pressure increases on
steam from a given amount
of water what happens to its
volume and latent heat?
a) increases
b) decreases
c) remains the same
,when pressure increases a) increases
on steam from a given
amount of water what
happens to its
temperature? a) increases
b) decreases
c) remains the same
when carbon monoxide (co) c) more "over the fire" air is needed
is formed and carbon
dioxide (co2) is very high
what does it generally
signify?
a) More "under the fire
air"is needed
b) less "under the fire
air"is required
c) more "over the fire"
air is
needed
d) less "over the fire" is
needed less
excess air is an expression c) air supplied above that theoretically required
that refers to:
a) overabundance of air
b) theoretical amount
ofair
c) air supplied above
thattheoretically required
a) 12%
a good percentage of
carbon dioxide when
burning oil is: a) 12%
b) 8 %
c) 10%
,what is draft on a boiler in b) difference in pressure between atmosphere and furnace or
operation? firebox
a) Flow of gases
throughboiler
b) difference in
pressurebetween
atmosphere and furnace or
firebox
c) difference
betweenatmospheric
pressure and breeching
which has greater heating a) oil (18000 - 19500 BTU) (coal
value per pound? has (6900 - 12910 BTU))
a) oil
b) coal
heavy oil must be heated c) get proper atomization
before entering the burner
to:
a) increase
carboncontent
b) decreased
sulfurcontent
c) get proper
atomization
c) change an operation, causing heat loss, can be detected
why should a daily log be
kept of flue gas
temperature?
a) Valuable information
incase of explosion
b) superintendent
filesthem
c) change an
operation,causing heat loss,
can be detected
, find SWP of a boiler 72 inches b) 143.6
in diameter, thickness of one-
half inch, tensile strength of
55,000 pounds, quadruple
riveted butt and strap joint
(.94) factor of safety 5: a)
14.3
b) 143.6
c) 1436
the total heat of steam is c) 1.07
1,188 BTUs, and feed water
temperature is 182 degrees
Fahrenheit. What is the
factor of evaporation? a) 107
b) 10.7
c) 1.07
why would viscosity be c) effects ease with which it can be handled
important in fuel oil?
a) more heat is
recoveredin water
b) has more
volatilehydrocarbons
c) affects ease with
whichit can be handled
why is too much air b) loss of efficiency
objectionable?
a) Cost too high
b) loss of efficiency
c) corrosive effect
ACTUAL TEST QUESTIONS WITH DETAILED
VERIFIED ANSWERS / ALREADY GRADED A.
Terms in this set (250+)
Question Answer
what are the conditionsc) turbulence, temperature, time 3T's
necessary for good combustion?
a) low sulfur content
b)
Thermal,thermocoupler,
tubular c) turbulence,
temperature, time 3T's
why is secondary air a) Necessary to burn the combustible gases
necessary in hand fired
boilers?
a) Necessary to burn
thecombustible gases
b) if primary air should
fail
c) used only if
sulfurcontent is high
b) decreases
when pressure increases on
steam from a given amount
of water what happens to its
volume and latent heat?
a) increases
b) decreases
c) remains the same
,when pressure increases a) increases
on steam from a given
amount of water what
happens to its
temperature? a) increases
b) decreases
c) remains the same
when carbon monoxide (co) c) more "over the fire" air is needed
is formed and carbon
dioxide (co2) is very high
what does it generally
signify?
a) More "under the fire
air"is needed
b) less "under the fire
air"is required
c) more "over the fire"
air is
needed
d) less "over the fire" is
needed less
excess air is an expression c) air supplied above that theoretically required
that refers to:
a) overabundance of air
b) theoretical amount
ofair
c) air supplied above
thattheoretically required
a) 12%
a good percentage of
carbon dioxide when
burning oil is: a) 12%
b) 8 %
c) 10%
,what is draft on a boiler in b) difference in pressure between atmosphere and furnace or
operation? firebox
a) Flow of gases
throughboiler
b) difference in
pressurebetween
atmosphere and furnace or
firebox
c) difference
betweenatmospheric
pressure and breeching
which has greater heating a) oil (18000 - 19500 BTU) (coal
value per pound? has (6900 - 12910 BTU))
a) oil
b) coal
heavy oil must be heated c) get proper atomization
before entering the burner
to:
a) increase
carboncontent
b) decreased
sulfurcontent
c) get proper
atomization
c) change an operation, causing heat loss, can be detected
why should a daily log be
kept of flue gas
temperature?
a) Valuable information
incase of explosion
b) superintendent
filesthem
c) change an
operation,causing heat loss,
can be detected
, find SWP of a boiler 72 inches b) 143.6
in diameter, thickness of one-
half inch, tensile strength of
55,000 pounds, quadruple
riveted butt and strap joint
(.94) factor of safety 5: a)
14.3
b) 143.6
c) 1436
the total heat of steam is c) 1.07
1,188 BTUs, and feed water
temperature is 182 degrees
Fahrenheit. What is the
factor of evaporation? a) 107
b) 10.7
c) 1.07
why would viscosity be c) effects ease with which it can be handled
important in fuel oil?
a) more heat is
recoveredin water
b) has more
volatilehydrocarbons
c) affects ease with
whichit can be handled
why is too much air b) loss of efficiency
objectionable?
a) Cost too high
b) loss of efficiency
c) corrosive effect
