Assessment: Operations in Polar Waters - Machinery and Engineering
- 15
- Questions
- No time limit
- 2
- Attempts left
- 70%
- Passing threshold
Question 1 of 15
Is this statement true or false? 'It is common to have significant cladding and protections for the propeller. This extra steel does not affect the performance overly, but it is there to ensure that larger pieces of floating ice do not strike the propeller directly.'
Correct; well done. True. It is common to have significant cladding and protections for the propeller. This extra steel does not affect the performance overly, but it is there to ensure that larger pieces of floating ice do not strike the propeller directly.
Incorrect - You should review the Propulsion and Steering Systems used in Polar Waters section.
Question 2 of 15
How many polar classes are defined under the general descriptions of the polar code?
Correct - The polar code lists 7 general classes for ice.
Incorrect - You should review the Polar Class Ships section.
Question 3 of 15
Is this statement true or false? 'While MARPOL regulations may allow for more relaxed discharge criteria for some of these substances, there is a general consensus that polar waters (and especially the Antarctic waters below 60° South) should remain as "carry in and carry out" for all polluting substances.'
Correct - This statement is true. While MARPOL regulations may allow for more relaxed discharge criteria for some of these substances, there is a general consensus that polar waters (and especially the Antarctic waters below 60° South) should remain as "carry in and carry out" for all polluting substances.
Incorrect - You should review the Precautions when Transiting MARPOL Special Areas or PSSAs section.
Question 4 of 15
What is considered to be the most prevalent threat to Polar Waters?
Correct - Oil pollution is considered to be the most prevalent threat to polar waters from vessels.
Incorrect - You should review the Precautions when Transiting MARPOL Special Areas or PSSAs section.
Question 5 of 15
Which of the following is important to be checked before entering polar areas?
Correct - Important checks before entering polar waters may include but not be limited to; draining of the freshwater lines on deck, draining of the fire main, greasing and lubricating all exposed machinery, purging airlines and checking for condensation.
Incorrect - You should review the Preparation Prior to Entry in Polar Waters section.
Question 6 of 15
What main advantage does an azimuth drive have over a conventional propeller drive in polar waters?
Correct - Azimuth drive has no rudder which means fewer components that may be damaged by ice.
Incorrect - You should review the Propulsion and Steering Systems used in Polar Waters section.
Question 7 of 15
Due to the way ice interacts with the pressure fields of ships created as they pass through the water, certain areas require greater strengthening than others. Which are these areas?
Correct - Due to the way ice interacts with the pressure fields of ships created as they pass through the water, certain areas require greater strengthening than others. These are found around the stern and propeller, along the waterline of the vessel from below the lightest draft to above the deepest and at the bow.
Incorrect - You should review the Design and Strength of Vessels section.
Question 8 of 15
Is this statement true or false? 'With the numerous ice classification levels, all features change depending on the class.'
Correct - This statement is false. Despite the numerous ice classification levels, certain features remain constant across all of them. These include; Engine cooling arrangements that include inlets and outlets that are designed to remain ice-free.
Incorrect - You should review the Design and Strength of Vessels section.
Question 9 of 15
Is this statement true or false? 'Double bottoms over the entire breadth and length between the forepeak and afterpeak bulkheads must be available on all polar class ships.'
Correct - This statement is true. Double bottoms over the entire breadth and length between the forepeak and afterpeak bulkheads must be available on all polar class ships.
Incorrect - You should review the Polar Class Ships section.
Question 10 of 15
'Polar Class 7 (PC7) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
Correct - This statement is true. Polar Class 7 (PC7) is the lowest level of classification and has the smallest window of operation in polar waters.
Incorrect - You should review the Polar Class Ships section.
Question 11 of 15
What may occur in polar waters due to icing on the superstructure?
Correct - Accretion of ice may lead to a reduction of positive stability and a dangerous condition.
Incorrect - You should review the Preparation Prior to Entry in Polar Waters section.
Question 12 of 15
'Polar Class 1 (PC1) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
Correct - This statement is false. Polar Class 1 (PC1) is the highest level of classification and has the most open window of operation in polar waters.
Incorrect - You should review the Polar Class Ships section.
Question 13 of 15
Which of the following is not found on the hull of an Ice-Class ship?
Correct - No hull protrusions, such as fin stabilisers, that would become damaged from striking ice
Incorrect - You should review the Design and Strength of Vessels section.
Question 14 of 15
Where can the information with regards to Areas to Be Avoided (ATBAs) be found?
Correct - Areas to be avoided (ATBAs) are published for Arctic and Antarctic waters and these should be noted and duly avoided. More information on ATBAs can be found in IMO SN.1/Circ.331.
Incorrect - You should review the Precautions when Transiting MARPOL Special Areas or PSSAs section.
Question 15 of 15
Where are polluting emissions defined?
Correct - Polluting emissions are all defined under Annex VI of MARPOL.
Incorrect - You should review the Precautions when Transiting MARPOL Special Areas or PSSAs section.
You Passed This Quiz. Let’s Move On!
Is this statement true or false? 'It is common to have significant cladding and protections for the propeller. This extra steel does not affect the performance overly, but it is there to ensure that larger pieces of floating ice do not strike the propeller directly.'
How many polar classes are defined under the general descriptions of the polar code?
Is this statement true or false? 'While MARPOL regulations may allow for more relaxed discharge criteria for some of these substances, there is a general consensus that polar waters (and especially the Antarctic waters below 60° South) should remain as "carry in and carry out" for all polluting substances.'
What is considered to be the most prevalent threat to Polar Waters?
Which of the following is important to be checked before entering polar areas?
What main advantage does an azimuth drive have over a conventional propeller drive in polar waters?
Due to the way ice interacts with the pressure fields of ships created as they pass through the water, certain areas require greater strengthening than others. Which are these areas?
Is this statement true or false? 'With the numerous ice classification levels, all features change depending on the class.'
Is this statement true or false? 'Double bottoms over the entire breadth and length between the forepeak and afterpeak bulkheads must be available on all polar class ships.'
'Polar Class 7 (PC7) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
What may occur in polar waters due to icing on the superstructure?
'Polar Class 1 (PC1) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
Which of the following is not found on the hull of an Ice-Class ship?
Where can the information with regards to Areas to Be Avoided (ATBAs) be found?
Where are polluting emissions defined?
Too Bad! But That Wasn't Enough
Is this statement true or false? 'It is common to have significant cladding and protections for the propeller. This extra steel does not affect the performance overly, but it is there to ensure that larger pieces of floating ice do not strike the propeller directly.'
How many polar classes are defined under the general descriptions of the polar code?
Is this statement true or false? 'While MARPOL regulations may allow for more relaxed discharge criteria for some of these substances, there is a general consensus that polar waters (and especially the Antarctic waters below 60° South) should remain as "carry in and carry out" for all polluting substances.'
What is considered to be the most prevalent threat to Polar Waters?
Which of the following is important to be checked before entering polar areas?
What main advantage does an azimuth drive have over a conventional propeller drive in polar waters?
Due to the way ice interacts with the pressure fields of ships created as they pass through the water, certain areas require greater strengthening than others. Which are these areas?
Is this statement true or false? 'With the numerous ice classification levels, all features change depending on the class.'
Is this statement true or false? 'Double bottoms over the entire breadth and length between the forepeak and afterpeak bulkheads must be available on all polar class ships.'
'Polar Class 7 (PC7) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
What may occur in polar waters due to icing on the superstructure?
'Polar Class 1 (PC1) is the lowest level of classification and has the smallest window of operation in polar waters.' Is this statement true or false?
Which of the following is not found on the hull of an Ice-Class ship?
Where can the information with regards to Areas to Be Avoided (ATBAs) be found?
Where are polluting emissions defined?
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