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1. What document contains all required procedures for the safe operation of the fuel system?
A. PMS
B. EOP
C. EOSS
D. EOCC
Correct Answer: C. EOSS
2. Which tanks supply purified fuel to propulsion turbines and generator fuel systems?
A. Storage tanks
B. Settling tanks
C. Service tanks
D. Expansion tanks
Correct Answer: C. Service tanks
3. What is the Navy’s preferred fuel oil for shipboard power plants?
A. JP-5
B. Diesel #2
C. F-76
D. LNG
Correct Answer: C. F-76
,4. What is the maximum fill level for fuel storage tanks during replenishment at sea?
A. 85%
B. 90%
C. 95%
D. 100%
Correct Answer: C. 95%
5. What is the primary purpose of an expansion tank?
A. Increase pressure
B. Store fuel
C. Prevent overflow/spillage
D. Filter contaminants
Correct Answer: C. Prevent overflow
6. What device stops fuel flow during an emergency?
A. Relief valve
B. Check valve
C. Emergency cutout valve
D. Gate valve
Correct Answer: C. Emergency cutout valve
7. Which fuel is an acceptable substitute for F-76?
A. Diesel #1
B. JP-5
C. Gasoline
D. Kerosene
Correct Answer: B. JP-5
8. What device is used to measure tank levels using a tape and plumb bob?
A. Dipstick
B. Gauge rod
C. Sounding tape
D. Flow meter
Correct Answer: C. Sounding tape
, 9. What contamination range can a free water detector reliably measure?
A. 0–5 ppm
B. 0–10 ppm
C. 0–20 ppm
D. 0–50 ppm
Correct Answer: C. 0–20 ppm
10. What indicates contamination by volatile substances like gasoline?
A. Density
B. Flashpoint
C. Viscosity
D. Color
Correct Answer: B. Flashpoint
11. What is the minimum flashpoint for F-76 and JP-5 fuels?
A. 100°F
B. 120°F
C. 140°F
D. 160°F
Correct Answer: C. 140°F
12. What term describes the lowest temperature at which fuel ignites without a spark?
A. Flashpoint
B. Boiling point
C. Autoignition Temperature (AIT)
D. Ignition delay
Correct Answer: C. Autoignition Temperature (AIT)
13. What equipment is used for overboard oil spill containment?
A. Oil boom
B. Spill kit
C. Overboard Oil Spill Response Kit