COMPETENCE 9 – Maintenance and Repair of Shipboard Machinery and Equipment
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#1. If a centrifugal pump vibrates and is noisy when operating, the cause could be:
Incorrect!
#2. Hydraulic pumps most commonly used in steering systems are of the:
Incorrect!
#3. If your ship burns 5 tons of fuel per hour at 23 knots, how many tons per hour will it burn at 18 knots?
Incorrect!
#4. If your ship burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 18 knots?
Incorrect!
#5. Excessive lube oil consumption can result from worn or broken:
Incorrect!
#6. If your ship burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 21 knots?
Incorrect!
#7. If your ship burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 19 knots?
Incorrect!
#8. If the main propulsion diesel governor works irregularly with a jerking motion, a possible cause can be:
Incorrect!
#9. Fuel oil day tanks for diesel engines must be checked and cleaned at regular intervals in order to remove.
Incorrect!
#10. If your ship burns 3 tons of fuel per hour at 19 knots, how many tons per hour will it burn at 15 knots?
Incorrect!
#11. How many BTUs must be added to one pound of water at 32°F to raise the temperature to 212°F?
Incorrect!
#12. If your ship burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 22 knots?
Incorrect!
#13. If your vessel burns 4 tons of fuel per hour at 21 knots, how many tons per hour will it burn at 16 knots?
Incorrect!
#14. If your ship burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?
Incorrect!
#15. If a stateroom has a 6" by 12" opening through which air travels at 100 feet per minute, what is the volume of air being supplied to the stateroom?
Incorrect!
There are 15 questions for the actual examination for Competence 9 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 4 mistakes.
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