DC 3rd Class Test, 3rd Save
class stationary steam
engineer license prep,
Stationary Engineer,
Station engineer exam,
DC 1st Class Boiler
Terms in this set (1264)
The component in which liquid evaporator
vapor by absorbing heat is
called?
the best answer for an Metal stake drive 8 foot into the ground.
electrical grounding method?
,A _____ valve should be used for Globe
throttling purposes?
What is the acceptable range 30-70
for residual sodium sulfite in
the boiler maintain?
What is the BTU content of a 146,000
gallon of #4 fuel oil?
What does a zeolite water brine
softener system use as a means
of regeneration?
What are the 4 steps for a Backwash, Brine, Rinse, Service
Zeolite Rejuvenation water
softener process?
Where medium temperature Condenser
liquid found?
Where is high temperature At the discharge of the compressor or
vapor found? condenser
,What stays are used to support Diagonal Stays
the burner chamber in a scotch
marine boiler?
What type of safety valve is ( Full) Crosby nozzle-type safety valve.
this? Page 365 BOG
Where do you get superheat Take suction line pressure
reading?
Name the wire that connects Grounding electrode conductor
all component of a system to a
physical ground or water pipe?
Where do you get sub-cooling Take liquid line pressure
reading? Cross reference to temperature using a
P/T Chart
Get liquid line temperature
Subtract actual temperature from cross
referenced temperature
Result is Sub cooling
,On the boilers that have both closest to the boiler and followed by the
Quick opening and Screw type screw-type valve
blow down valves, the Quick
opening valve must be
located?
High pressure boilers By opening the Quick opening valve first
equipped with Quick opening and closing it Last.
and Screw type valves are
blown down how?
ASME Code defines a slow One requiring at least 5 full 360 degree
opening valve as what? turns between full open and close
position.
,
, A 300 Horsepower boiler Water In = Water Out
operating at 100psi has an Makeup + Condensate Return = Evaporator
average load of 75% with 80% + Blow Down
condensate return and 5%
blow down. The treatment Average Evaporator Rate = 300 x 34.5 pph
provides a chemical which x .75% load = 7762, 50 pph
costs $8.75 per gallon, and will
treat 600 gallon. Find the 1 Month + .8( 7762.50 pph) = 7762.50 pph +
amount of the chemical 0500 m
needed for the day period, and
the cost of the chemical for a 1 Month + 6210 pph = 7762.50 pph + .0500
30 days period? m
-6210 -6210
1 Month = 1552.5 pph + .0500
.9500 m = 1552.5 pph
.9500m .9500
1Month = 1,634.21 pph
Gallons per Month = 1634..33 x 24 x
30 = 141, 252.24 gallons per month
Chemical needed = 141,252.24 gallon / 600
gallon = 235, 40 gallon
Cost per month = 235, 40 gallon x 8.75 =
$2,059.75
class stationary steam
engineer license prep,
Stationary Engineer,
Station engineer exam,
DC 1st Class Boiler
Terms in this set (1264)
The component in which liquid evaporator
vapor by absorbing heat is
called?
the best answer for an Metal stake drive 8 foot into the ground.
electrical grounding method?
,A _____ valve should be used for Globe
throttling purposes?
What is the acceptable range 30-70
for residual sodium sulfite in
the boiler maintain?
What is the BTU content of a 146,000
gallon of #4 fuel oil?
What does a zeolite water brine
softener system use as a means
of regeneration?
What are the 4 steps for a Backwash, Brine, Rinse, Service
Zeolite Rejuvenation water
softener process?
Where medium temperature Condenser
liquid found?
Where is high temperature At the discharge of the compressor or
vapor found? condenser
,What stays are used to support Diagonal Stays
the burner chamber in a scotch
marine boiler?
What type of safety valve is ( Full) Crosby nozzle-type safety valve.
this? Page 365 BOG
Where do you get superheat Take suction line pressure
reading?
Name the wire that connects Grounding electrode conductor
all component of a system to a
physical ground or water pipe?
Where do you get sub-cooling Take liquid line pressure
reading? Cross reference to temperature using a
P/T Chart
Get liquid line temperature
Subtract actual temperature from cross
referenced temperature
Result is Sub cooling
,On the boilers that have both closest to the boiler and followed by the
Quick opening and Screw type screw-type valve
blow down valves, the Quick
opening valve must be
located?
High pressure boilers By opening the Quick opening valve first
equipped with Quick opening and closing it Last.
and Screw type valves are
blown down how?
ASME Code defines a slow One requiring at least 5 full 360 degree
opening valve as what? turns between full open and close
position.
,
, A 300 Horsepower boiler Water In = Water Out
operating at 100psi has an Makeup + Condensate Return = Evaporator
average load of 75% with 80% + Blow Down
condensate return and 5%
blow down. The treatment Average Evaporator Rate = 300 x 34.5 pph
provides a chemical which x .75% load = 7762, 50 pph
costs $8.75 per gallon, and will
treat 600 gallon. Find the 1 Month + .8( 7762.50 pph) = 7762.50 pph +
amount of the chemical 0500 m
needed for the day period, and
the cost of the chemical for a 1 Month + 6210 pph = 7762.50 pph + .0500
30 days period? m
-6210 -6210
1 Month = 1552.5 pph + .0500
.9500 m = 1552.5 pph
.9500m .9500
1Month = 1,634.21 pph
Gallons per Month = 1634..33 x 24 x
30 = 141, 252.24 gallons per month
Chemical needed = 141,252.24 gallon / 600
gallon = 235, 40 gallon
Cost per month = 235, 40 gallon x 8.75 =
$2,059.75
