COMPETENCE 9 – Maintenance and Repair of Shipboard Machinery and Equipment
Results
Congratulations! Share the result
Try again. There is always a chance. Review the results.
#1. It is the physical or chemical property of the fuel or diesel oil which contain the amount of heat released by the combustion of a mass of fuel?
Incorrect!
#2. If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 19 knots?
Incorrect!
#3. Safety valve gags should only be installed hand tight in order to prevent:
Incorrect!
#4. It is the amount of heat released by a substance during complete combustion of unit of mass of that said substance:
Incorrect!
#5. The purpose of an oil mist detector in a main propulsion diesel engine is to warn of:
Incorrect!
#6. If your vessel burns 6 tons of fuel per hour at 22 knots, how many tons per hour will it burn at 17 knots?
Incorrect!
#7. Leakage over the ends of the blade tips, as a result of the pressure differential between each row of blades in a reaction turbine, can be reduced with a blade design known as.
Incorrect!
#8. In the case of a variable speed centrifugal pump:
Incorrect!
#9. Prior to relieving the watch you should first check the fire room status by verifying the boiler water level and:
Incorrect!
#10. To obtain a 1/2 inch per foot taper on an 18 inch work piece, the tailstock of the lathe must be set over:
Incorrect!
#11. The best type of chisel to use for cutting a keyway is the:
Incorrect!
#12. Lube oil contamination will increase due to normal wear of engine components as a result of:
Incorrect!
#13. Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be caused by.
Incorrect!
#14. It is the tendency of a material to suddenly break with little or no prior deformation:
Incorrect!
#15. Tapping threads into a blind hole should be finished by using a:
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.
DISCLAIMER
The questionnaires contained in this “reviewer” are extracted from the post released by MARINA on their official website and other review materials. Please note that Seaman Kowts is not affiliated with, endorsed by, or connected to the official website of MARINA. The information provided on this website is for general informational and educational purposes only and should not be relied upon as official or authoritative. If you require official information or services, please visit the official website or any relevant review center. We do not assume any responsibility or liability for any consequences resulting from the use of information or services provided on this website.
