About how much of the energy supplied to a marine engine is lost? Select the ONE correct answer:
Ваша відповідь правильна:
About 50 %.
2
According to this module, approximately how much of the cost of running a cargo vessel is due to fuel consumption? Select the ONE best answer:
Ваша відповідь правильна:
50 %.
3
According to this module, how much fuel can be saved by fitting a bulbous bow to some ships? Select the ONE best answer:
Ваша відповідь правильна:
Up to 20 %.
4
According to this module, how often should a traditional antifouling paint be applied? Select the ONE best answer:
Ваша відповідь правильна:
Once a year.
5
According to this module, what is a typical hull roughness value for a new-build ship? Select the ONE correct answer:
Ваша відповідь правильна:
100 microns.
6
According to this module, what is a typical roughness value for a newly polished propeller? Select the ONE best answer:
Ваша відповідь правильна:
10 microns.
7
According to this module, what speed loss would justify an average vessel docking? Select the ONE best answer:
Ваша відповідь правильна:
0,5 knots.
8
An upgraded propeller gives a 10 % decrease in fuel consumption and engine modifications also give a 10 % decrease in fuel consumption. Calculate the overall fuel savings:
Ваша відповідь правильна:
19 %.
9
Choose the most fuel efficient option:
Ваша відповідь правильна:
Large propeller and a slow revolving shaft.
10
For a variable pitch propeller vessel what is the best pitch and propeller speed combination for optimum fuel consumption? Select the ONE correct answer:
Ваша відповідь правильна:
High pitch, low RPM.
11
For a vessel with a variable pitch propeller, what is the best way to adjust the speed of the ship? Select the ONE best answer:
Ваша відповідь правильна:
Adjust RPM.
12
If there is low frequency vibration of the engine at low speed, what is the probable location of the problem? Select the ONE best answer:
Ваша відповідь правильна:
The main propulsion shaft.
13
In general terms, what is the most fuel efficient shape for a vessel? Select the ONE best answer:
Ваша відповідь правильна:
Long and slim vessel.
14
Mark the ONE statement that is TRUE:
Ваша відповідь правильна:
SEEMP implementation is beneficial both financially and environmentally.
15
Select measures taken daily during an engine check:
Ваша відповідь правильна:
Exhaust temperature.; Fuel consumption.; Maximum combustion pressure.; Scavenging air pressure.
16
Select modifications required for de-rating:
Ваша відповідь правильна:
Ignition adjustment.; New injection nozzles.; Turbo-charger’s modification.; Valve system modification.
17
Select the measurements that should be recorded and monitored with special attention on board:
Ваша відповідь правильна:
Time spent at sea.; Time spent at port.; Distance sailed.; Fuel consumption.
18
Select the most optimal way of adjusting the speed of a vessel which uses a variable pitch propeller at full sea speed:
Ваша відповідь правильна:
RPM adjustment.
19
Select the speed loss that justifies docking:
Ваша відповідь правильна:
0,5 knots.
20
Select the statements that are FALSE:
Ваша відповідь правильна:
The minimum instrument requirements for better fuel saving are a fuel gauge and a pressure gauge.; Properly used instruments can reduce fuel consumption by nearly 50 %.
21
What does SEEMP stand for? Select the ONE correct answer:
Ваша відповідь правильна:
Ship Energy Efficiency Management Plan.
22
What is the main reason for de-rating the engine and changing the propeller? Select the ONE best answer:
Ваша відповідь правильна:
A change in the service of the vessel.
23
Which ONE of the given options is the minimal instrumentation necessary to estimate fuel consumption? Select the ONE correct option:
Ваша відповідь правильна:
Fuel gauge and speed log.
24
Which ONE of these would benefit the most from a nozzle (tunnel) propeller? Select the ONE best answer:
Ваша відповідь правильна:
A slow speed ship with a high propeller load.
25
Which THREE of these measures increases the efficiency of steam heating? Select the THREE correct answers:
Ваша відповідь правильна:
Prevent leakage of steam from the pipework system.; Make sure that pipe insulation is fitted and in good condition.; Make sure that the steam leaves the heaters as condensate.
26
Which of these vessels would NOT benefit from using self-polishing antifouling? Select the ONE best answer: