OIC-EW MARINA REVIEWER / QUIZ COMPETENCE 8 – PART 1

COMPETENCE 8 – Appropriate Use of Hand Tools, Machine Tools and Measuring Instruments for Fabrication and Repair on Board

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QUIZ START

#1. A reading of 0.250 on a micrometer with a 1 to 2 inch range is equal to:

Incorrect!

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#2. For cutting thin tubing or sheet metal, the proper hacksaw blade should have:

Incorrect!

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#3. A roller bearing should normally be filled to what fraction of its space cavity?

Incorrect!

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#4. A “thirty pound” steel plate would be:

Incorrect!

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#5. An 8″ diameter wheel is driving a 20″ diameter wheel via a pair of belts The power input is supplied by a 5 HP motor rotating the driving wheel at 300 RPM. If the efficiency of the supplied by a 5 HP motor rotating the driving wheel at 300 RPM. If the efficiency of the transmission is 80%, what RPM and torque is delivered to the driven wheel.

Incorrect!

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#6. A ship travels is 5472 miles in 26 days 12 hours and 24 minutes. Find the average speed for the engine voyage.

Incorrect!

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#7. Bluish smoke in the exhaust of an operating diesel engine can be caused by:

Incorrect!

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#8. Diesel engine piston seizure can be caused by.

Incorrect!

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#9. A reading of 0.625 inch on a micrometer with a 2 to 3 inch range would be equal to:

Incorrect!

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#10. A ballast pump, with a capacity of 200 gpm, takes suction on a tank containing 300 long tons of sea water ballast. How much ballast F3 – 2 will remain in the tank after pumping for one hour?

Incorrect!

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#11. A piece of tapered round stock 36 inches long, 4 inches in diameter at the large end and 2 1/2 inches in diameter at the small end. What tailstock set over was used to machine the taper?

Incorrect!

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#12. Ferrous metals are metals containing:

Incorrect!

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#13. Boiler tube failures can result from:

Incorrect!

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#14. A diesel engine is warmed up and white vapor is noted in the exhaust, this could indicate:

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#15. For mild steel and general work, the correct angle of a drill point is _______degrees.

Incorrect!

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#16. A wear resulting from the grinding action of abrasive contaminants on the oil:

Incorrect!

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#17. Air leaks through the inner or outer casing of a boiler could result in:

Incorrect!

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#18. Babbitt is a metal alloy commonly used for lining:

Incorrect!

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#19. A wrench that completely surrounds a nut, or bolt head is a/an:

Incorrect!

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#20. A diesel engine exposed to widely varying ambient temperatures should use a lubricating oil with:

Incorrect!

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#21. Be in accordance with the engine load and the same quantity of fuel must be delivered to each cylinder for each power stroke at that load. Which of the following statements describes this requirement?

Incorrect!

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#22. An increase in the pressure drop between the inlet and outlet of the feed water heater waterside, not due to a waterside obstruction, would indicate:

Incorrect!

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#23. An eight cylinder, four stroke/cycle, single acting diesel engine has a 650 mm bore and a 1400 mm stroke. What will be the developed indicated metric horsepower if the average mean effective pressure is 30 kg/cm2 at a speed of 100 RPM?

Incorrect!

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#24. A micrometer screw has a pitch of:

Incorrect!

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Finish

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.

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.

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