COMPETENCE 5 – Operate Fuel, Lubrication, Ballast and Pumping Systems and Other Associated Control Systems
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#1. Cargo hose carried on tank vessels shall be able to withstand a pressure of at least:
Incorrect!
#2. After coolers are used with air compressors to:
Incorrect!
#3. An axial piston pump differs from a radial piston pump as the pistons of an axial piston pump are positioned:
Incorrect!
#4. Heating the fuel oil to an excessively high a temperature in a fuel oil heater will cause:
Incorrect!
#5. A liquid is being transferred by a centrifugal pump. As the liquid passes through the volute, its velocity decreases and:
Incorrect!
#6. A centrifugal pump produces flow with a resulting discharge head by energy conversion. It is typical for the energy conversion to follow the order of:
Incorrect!
#7. 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!
#8. A centrifugal ballast pump has a capacity of 200 gpm. If suction is taken on a ballast tank containing 200 long tons of seawater, how much water will be remain in the tank after discharging for one hour?
Incorrect!
#9. If you attempt to tighten a leaking hydraulic fitting with pressure on the system, you will:
Incorrect!
#10. A hydraulic fluid flow control circuit, controlling linear actuator speed during extension, with the pump operating at system pressure, is known as a:
Incorrect!
There are 10 questions for the actual examination for Competence 5 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 3 mistakes.
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