COMPETENCE 9 – Maintenance and Repair of Shipboard Machinery and Equipment
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#1. If the main propulsion diesel governor works irregularly with a jerking motion, a possible cause can be:
Incorrect!
#2. If a centrifugal pump vibrates and is noisy when operating, the cause could be:
Incorrect!
#3. Excessive lube oil consumption can result from worn or broken:
Incorrect!
#4. 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!
#5. 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!
#6. How many BTUs must be added to one pound of water at 32°F to raise the temperature to 212°F?
Incorrect!
#7. 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!
#8. 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!
#9. 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!
#10. Fuel oil day tanks for diesel engines must be checked and cleaned at regular intervals in order to remove.
Incorrect!
#11. 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!
#12. Hydraulic pumps most commonly used in steering systems are of the:
Incorrect!
#13. 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!
#14. 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!
#15. 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!
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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