COMPETENCE 8 – Appropriate Use of Hand Tools, Machine Tools and Measuring Instruments for Fabrication and Repair on Board
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#1. 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.
c
#2. 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!
#3. Lube oil contamination will increase due to normal wear of engine components as a result of:
Incorrect!
#4. 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!
#5. 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!
#6. 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!
#7. Safety valve gags should only be installed hand tight in order to prevent:
Incorrect!
#8. Tapping threads into a blind hole should be finished by using a:
Incorrect!
#9. If the thimble of a micrometer were turned through one complete revolution, the micrometer would open or close by a linear distance of:
Incorrect!
#10. The characteristic of a good quality lubricating oil for use in any machinery should be:
Incorrect!
#11. 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!
#12. How many BTUs must be added to one pound of water at 32°F to raise the temperature to 212°F?
Incorrect!
#13. Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be caused by.
Incorrect!
#14. If a centrifugal pump vibrates and is noisy when operating, the cause could be:
Incorrect!
#15. 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!
#16. The chemical analysis of an oil sample taken form the main propulsion machinery indicates a report of an increase neutralization number, you should be aware that:
Incorrect!
#17. 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!
#18. 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!
#19. In terms of linear measurement, approximately how many “inches” equal one “meter”?
Incorrect!
#20. The number of screw threads per inch for a Standard National Coarse 1/2 inch bolt is:
Incorrect!
#21. If the main propulsion diesel governor works irregularly with a jerking motion, a possible cause can be:
Incorrect!
#22. 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!
#23. 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!
#24. The blade for a power hacksaw should be installed with the teeth:
Incorrect!
There are 24 questions for the actual examination for Competence 8 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 7 mistakes.
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