COMPETENCE 9 – Maintenance and Repair of Shipboard Machinery and Equipment
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#1. Why is it necessary to have a relief valve protect the deserating feed tank from internal pressure?
Incorrect!
#2. Which of the following problems is the main source of fuel pump and injection system malfunctions?
Incorrect!
#3. Which of the listed metals can usually be drilled without lubrication?
Incorrect!
#4. What could be the possible cause why a diesel generator engine freely turns over but fails to ignite properly?
Incorrect!
#5. When inspecting piston rings through the ports of a two- stroke/cycle diesel engine, what indicates black areas on the sealing surfaces.
Incorrect!
#6. What is the theoretical lift of a pump handling fresh water at atmospheric pressure?
Incorrect!
#7. Which of the following listed pressures is the maximum acetylene gas pressure that can be safely used in gas welding?
Incorrect!
#8. Which of the files listed will have coarsely spaced teeth?
Incorrect!
#9. Which of the wrenches listed is least likely to slip off a bolt head or nut?
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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