ESWS Engineering Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
What type of boilers and how many do we have onboard the ESL? - CORRECT
ANSWER We have 2 600 psi D type boilers
What type of fuel oil is onboard? - CORRECT ANSWER F76/ Diesel Fuel Marine
(DFM)
What is F76 used for onboard the ESL? - CORRECT ANSWER Boilers, EDG, small
boats and P-100 pumps
In regard to the F/O service system, how many fuel oil SERVICE tanks do we have
onboard?What is their total combined capacity? - CORRECT ANSWER 2 F/O service
tanks with a combined capacity of 18,000 gallons
In regard to the F/O service system, how many fuel oil STORAGE tanks do we have
onboard?What is their total combined capacity? - CORRECT ANSWER 24 F/O
storage tanks with a combined capacity of 1.9 million gallons
What is the purpose of the superheater? - CORRECT ANSWER Heats steam from the
boilers above its saturation temperature
What is the normal range of the superheater? - CORRECT ANSWER 750-875 degrees
What is the purpose of the economizer? - CORRECT ANSWER Preheats incoming
feed water from DFT
At what temperature does the feed water enters and exits the economizer? - CORRECT
ANSWER Enters: 250 degrees; Exits: 350-450 degrees
, How many economizers are there per boiler? in total? - CORRECT ANSWER 1 per
boiler; 2 in total
What is a soot blower's purpose? - CORRECT ANSWER Uses steam to blow soot off
boiler tubes
How many soot blowers do we have per boiler? in total? - CORRECT ANSWER 7 per
boiler; 14 in total
How many turbine forced draft blowers are there per boiler? in total? What are they driven
by? - CORRECT ANSWER 2 per boiler; 4 in total
They are steam driven
How many light off blowers are there per boiler? in total? - CORRECT ANSWER 1
per boiler; 2 in total
What is the purpose of the Chelant boiler water treatment system? - CORRECT
ANSWER Injects chemicals into the boiler to maintain boiler water chemistry through
the DFT
It has continuous blowdown to rid the boiler of contaminants
Aides in the De-areation process of feedwater, coats the internal piping and boiler tubes to
minimize the possibility of corrosion and rust build up
If the boiler chemistry is poor, what will it cause? - CORRECT ANSWER Failure of
the boiler tubes
What is the purpose of the De-aerating Feed Tank (DFT)? - CORRECT
ANSWER Stores feed water at 15 psi and 250 degrees
How many main feed pumps are there? What are they driven by? - CORRECT
ANSWER 2 turbine driven pumps
QUESTIONS AND CORRECT ANSWERS
What type of boilers and how many do we have onboard the ESL? - CORRECT
ANSWER We have 2 600 psi D type boilers
What type of fuel oil is onboard? - CORRECT ANSWER F76/ Diesel Fuel Marine
(DFM)
What is F76 used for onboard the ESL? - CORRECT ANSWER Boilers, EDG, small
boats and P-100 pumps
In regard to the F/O service system, how many fuel oil SERVICE tanks do we have
onboard?What is their total combined capacity? - CORRECT ANSWER 2 F/O service
tanks with a combined capacity of 18,000 gallons
In regard to the F/O service system, how many fuel oil STORAGE tanks do we have
onboard?What is their total combined capacity? - CORRECT ANSWER 24 F/O
storage tanks with a combined capacity of 1.9 million gallons
What is the purpose of the superheater? - CORRECT ANSWER Heats steam from the
boilers above its saturation temperature
What is the normal range of the superheater? - CORRECT ANSWER 750-875 degrees
What is the purpose of the economizer? - CORRECT ANSWER Preheats incoming
feed water from DFT
At what temperature does the feed water enters and exits the economizer? - CORRECT
ANSWER Enters: 250 degrees; Exits: 350-450 degrees
, How many economizers are there per boiler? in total? - CORRECT ANSWER 1 per
boiler; 2 in total
What is a soot blower's purpose? - CORRECT ANSWER Uses steam to blow soot off
boiler tubes
How many soot blowers do we have per boiler? in total? - CORRECT ANSWER 7 per
boiler; 14 in total
How many turbine forced draft blowers are there per boiler? in total? What are they driven
by? - CORRECT ANSWER 2 per boiler; 4 in total
They are steam driven
How many light off blowers are there per boiler? in total? - CORRECT ANSWER 1
per boiler; 2 in total
What is the purpose of the Chelant boiler water treatment system? - CORRECT
ANSWER Injects chemicals into the boiler to maintain boiler water chemistry through
the DFT
It has continuous blowdown to rid the boiler of contaminants
Aides in the De-areation process of feedwater, coats the internal piping and boiler tubes to
minimize the possibility of corrosion and rust build up
If the boiler chemistry is poor, what will it cause? - CORRECT ANSWER Failure of
the boiler tubes
What is the purpose of the De-aerating Feed Tank (DFT)? - CORRECT
ANSWER Stores feed water at 15 psi and 250 degrees
How many main feed pumps are there? What are they driven by? - CORRECT
ANSWER 2 turbine driven pumps
