EOOW UPDATED Exam Questions and
CORRECT Answers
Define the term "clear and bright." - CORRECT ANSWER-✔✔ Clear is the absence of
particulate matter (sediment),
Bright is the absence of free water
When are LO samples required? - CORRECT ANSWER-✔✔ 24 hours prior to start,
Daily while operating (include equipment in auto start),
Upon receipt of new oil,
Within 8 hours prior to transfer of oil,
When unusual conditions exist,
After an equipment casualty,
Test purifier sample 30 minutes after starting and at least one every four hours,
Equipment with sump capacities with 1 gallon or more
Discuss the requirements for a lube oil sample drawn from the MRG LO System -
CORRECT ANSWER-✔✔ The MRG LO system is purifiable and therefore a sample is
UNSAT if it fails to meet the clear and bright test. The system can still be operated and a
BS&W must be conducted. The system must be placed on purification. Refer to NSTM 262
for flow chart and more details
Discuss the requirements for a lube oil sample drawn from the CPP LO system - CORRECT
ANSWER-✔✔ This uses NSTM 245 to determine sample criteria. A sample is considered
UNSAT after it fails the BS&W test with more than .1 SED and more than .4 comb
Discuss the requirements for lube oil sample drawn from a LSB - CORRECT ANSWER-✔✔
This is a non-purifiable system/sump. If the sample fails the clear and bright, the transparency
test or the visible sediment test must be preformed. If it still fails those test then a BS&W test
must be performed and if it is less than .1 SED and less than .4 comb it is an SAT sample
At what speed and how long is the centrifuge used for when conducting a BS&W test? -
CORRECT ANSWER-✔✔ 1500 RPM for 15 minutes
,How do you conduct a transparency test on non-purifiable samples? - CORRECT ANSWER-
✔✔ Place a MRC behind bottom and read, if it can be read the sample is SAT
How do you conduct a visible sediment test? - CORRECT ANSWER-✔✔ Let bottle sit for
10 minutes, the place the bottle on its side for 10 minutes. If sediment is greater than 1/8th an
inch or forms a solid unbroken line along the bottom, the sample is UNSAT
How long is the LOQM log kept on board? - CORRECT ANSWER-✔✔ 2 years
What is the testing criterion for fuel filter separator discharge samples? - CORRECT
ANSWER-✔✔ Free Water Detection test max allowable outcome is 40ppm, contaminated
Fuel Detection test allowable outcome is 2.64mg/L sediment
Discuss the test requirements for a fuel service tank sample - CORRECT ANSWER-✔✔
clear and bright
Where is the fuel service tank sample drawn from? - CORRECT ANSWER-✔✔ Filter
separator if tank is online,
Purifier discharge if tank is on recirculation
What is the minimum flashpoint of F-76? - CORRECT ANSWER-✔✔ 140 degF
How often is fuel sampled during normal fuel service system operation? (service tank that is
online) - CORRECT ANSWER-✔✔ Eight hours prior to use, the filter/separator for the
online service tank is tested 5 minutes after tank placed online and every 4 hours after that
What are the maximum limits of BS&W during UNREP? - CORRECT ANSWER-✔✔ 0.1%
max
How often are head tank samples taken? - CORRECT ANSWER-✔✔ Monthly
,How is linear motion translated into radial motion in the CPP system? - CORRECT
ANSWER-✔✔ The crosshead moves in a lineal direction, and is connected to the blades
creating the radial motion
How full can the tanks get during re-fueling operations? - CORRECT ANSWER-✔✔ 95% at
sea and 85% in-port
How long is the FOQM log kept onboard? - CORRECT ANSWER-✔✔ 6 months
How long are the Fuel, Oil and Water reports kept on board? - CORRECT ANSWER-✔✔ 1
year
When is a heat stress survey required? - CORRECT ANSWER-✔✔ when DB reaches >90
degF, prior to EOCC drills that will last longer than 3 hrs, upon CO request, in the event of a
heat stress casualty
When is a follow up heat stress survey required? - CORRECT ANSWER-✔✔ DB increases
or decreases 5 degF from previous surveys
When do you need to rush survey results to the CO? - CORRECT ANSWER-✔✔ The current
watch rotation exceeds the recommend heat stress stay time
When is a time weighted mean? - CORRECT ANSWER-✔✔ Allows watch standers to stay
in the space longer by allowing them to take breaks and cool off in a location cooler than the
watchstation
When are time weighted means applied during the course of standing watch? - CORRECT
ANSWER-✔✔ In a hot environment where reduced stay times have been imposed on
watch/work stations
How do you verify an installed WBGT sensor is working properly? - CORRECT ANSWER-
✔✔ DB>WB or GT>DB
, What is the WBGT index? - CORRECT ANSWER-✔✔ It is the combination of the WBGT,
WB, & DB temps, that actually affect you
Where are Dry Bulb thermometers required to be hung? - CORRECT ANSWER-✔✔ Where
watch stations are stood in which a heat stress environment may occur, Non-ventilated spaces
that are normally not manned, but personnel may work in
Where are the required to be installed within the space - CORRECT ANSWER-✔✔ In a spot
that provides a good representative sample of the entire spaces temp, should be located at
least 2 feet away from any ventilation sources, shall be hung with a non-metal heat
transferring material
What does PHEL stand for? - CORRECT ANSWER-✔✔ Physiological Heat Exposure Limit
What is the recovery time for personnel who has reached the heat stress exposure limit? -
CORRECT ANSWER-✔✔ It should be equal to twice the exposure limit or 4 hrs whichever
is less
What happens with the exposure of fuel combustion gases/fuel vapors in a space? -
CORRECT ANSWER-✔✔ The detection of stack gas or fuel vapor reduces the stay time by
2/3 normal time, to calculate new stay time dived the old stay time by 3
How long does it take a new person to acclimate to the environmental conditions? -
CORRECT ANSWER-✔✔ 3 - 4 weeks
When should a tag out audit be conducted? - CORRECT ANSWER-✔✔ On MASON every
week (TUMS requires every other week), the day before getting underway, every week if
ship in yards/overhaul
When is CO's authorization needed to tag out a system? - CORRECT ANSWER-✔✔ Single
valve protection to the sea,
Installed Damage Control equipment,
When removing a pump from the fuel oil service system
CORRECT Answers
Define the term "clear and bright." - CORRECT ANSWER-✔✔ Clear is the absence of
particulate matter (sediment),
Bright is the absence of free water
When are LO samples required? - CORRECT ANSWER-✔✔ 24 hours prior to start,
Daily while operating (include equipment in auto start),
Upon receipt of new oil,
Within 8 hours prior to transfer of oil,
When unusual conditions exist,
After an equipment casualty,
Test purifier sample 30 minutes after starting and at least one every four hours,
Equipment with sump capacities with 1 gallon or more
Discuss the requirements for a lube oil sample drawn from the MRG LO System -
CORRECT ANSWER-✔✔ The MRG LO system is purifiable and therefore a sample is
UNSAT if it fails to meet the clear and bright test. The system can still be operated and a
BS&W must be conducted. The system must be placed on purification. Refer to NSTM 262
for flow chart and more details
Discuss the requirements for a lube oil sample drawn from the CPP LO system - CORRECT
ANSWER-✔✔ This uses NSTM 245 to determine sample criteria. A sample is considered
UNSAT after it fails the BS&W test with more than .1 SED and more than .4 comb
Discuss the requirements for lube oil sample drawn from a LSB - CORRECT ANSWER-✔✔
This is a non-purifiable system/sump. If the sample fails the clear and bright, the transparency
test or the visible sediment test must be preformed. If it still fails those test then a BS&W test
must be performed and if it is less than .1 SED and less than .4 comb it is an SAT sample
At what speed and how long is the centrifuge used for when conducting a BS&W test? -
CORRECT ANSWER-✔✔ 1500 RPM for 15 minutes
,How do you conduct a transparency test on non-purifiable samples? - CORRECT ANSWER-
✔✔ Place a MRC behind bottom and read, if it can be read the sample is SAT
How do you conduct a visible sediment test? - CORRECT ANSWER-✔✔ Let bottle sit for
10 minutes, the place the bottle on its side for 10 minutes. If sediment is greater than 1/8th an
inch or forms a solid unbroken line along the bottom, the sample is UNSAT
How long is the LOQM log kept on board? - CORRECT ANSWER-✔✔ 2 years
What is the testing criterion for fuel filter separator discharge samples? - CORRECT
ANSWER-✔✔ Free Water Detection test max allowable outcome is 40ppm, contaminated
Fuel Detection test allowable outcome is 2.64mg/L sediment
Discuss the test requirements for a fuel service tank sample - CORRECT ANSWER-✔✔
clear and bright
Where is the fuel service tank sample drawn from? - CORRECT ANSWER-✔✔ Filter
separator if tank is online,
Purifier discharge if tank is on recirculation
What is the minimum flashpoint of F-76? - CORRECT ANSWER-✔✔ 140 degF
How often is fuel sampled during normal fuel service system operation? (service tank that is
online) - CORRECT ANSWER-✔✔ Eight hours prior to use, the filter/separator for the
online service tank is tested 5 minutes after tank placed online and every 4 hours after that
What are the maximum limits of BS&W during UNREP? - CORRECT ANSWER-✔✔ 0.1%
max
How often are head tank samples taken? - CORRECT ANSWER-✔✔ Monthly
,How is linear motion translated into radial motion in the CPP system? - CORRECT
ANSWER-✔✔ The crosshead moves in a lineal direction, and is connected to the blades
creating the radial motion
How full can the tanks get during re-fueling operations? - CORRECT ANSWER-✔✔ 95% at
sea and 85% in-port
How long is the FOQM log kept onboard? - CORRECT ANSWER-✔✔ 6 months
How long are the Fuel, Oil and Water reports kept on board? - CORRECT ANSWER-✔✔ 1
year
When is a heat stress survey required? - CORRECT ANSWER-✔✔ when DB reaches >90
degF, prior to EOCC drills that will last longer than 3 hrs, upon CO request, in the event of a
heat stress casualty
When is a follow up heat stress survey required? - CORRECT ANSWER-✔✔ DB increases
or decreases 5 degF from previous surveys
When do you need to rush survey results to the CO? - CORRECT ANSWER-✔✔ The current
watch rotation exceeds the recommend heat stress stay time
When is a time weighted mean? - CORRECT ANSWER-✔✔ Allows watch standers to stay
in the space longer by allowing them to take breaks and cool off in a location cooler than the
watchstation
When are time weighted means applied during the course of standing watch? - CORRECT
ANSWER-✔✔ In a hot environment where reduced stay times have been imposed on
watch/work stations
How do you verify an installed WBGT sensor is working properly? - CORRECT ANSWER-
✔✔ DB>WB or GT>DB
, What is the WBGT index? - CORRECT ANSWER-✔✔ It is the combination of the WBGT,
WB, & DB temps, that actually affect you
Where are Dry Bulb thermometers required to be hung? - CORRECT ANSWER-✔✔ Where
watch stations are stood in which a heat stress environment may occur, Non-ventilated spaces
that are normally not manned, but personnel may work in
Where are the required to be installed within the space - CORRECT ANSWER-✔✔ In a spot
that provides a good representative sample of the entire spaces temp, should be located at
least 2 feet away from any ventilation sources, shall be hung with a non-metal heat
transferring material
What does PHEL stand for? - CORRECT ANSWER-✔✔ Physiological Heat Exposure Limit
What is the recovery time for personnel who has reached the heat stress exposure limit? -
CORRECT ANSWER-✔✔ It should be equal to twice the exposure limit or 4 hrs whichever
is less
What happens with the exposure of fuel combustion gases/fuel vapors in a space? -
CORRECT ANSWER-✔✔ The detection of stack gas or fuel vapor reduces the stay time by
2/3 normal time, to calculate new stay time dived the old stay time by 3
How long does it take a new person to acclimate to the environmental conditions? -
CORRECT ANSWER-✔✔ 3 - 4 weeks
When should a tag out audit be conducted? - CORRECT ANSWER-✔✔ On MASON every
week (TUMS requires every other week), the day before getting underway, every week if
ship in yards/overhaul
When is CO's authorization needed to tag out a system? - CORRECT ANSWER-✔✔ Single
valve protection to the sea,
Installed Damage Control equipment,
When removing a pump from the fuel oil service system
