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Marine Engineering Knowledge Quiz
Test your understanding of marine engineering with this comprehensive quiz consisting of 85 multiple-choice questions. From basic principles of buoyancy to advanced calculations for areas and volumes, this quiz covers essential topics vital for aspiring marine engineers and professionals.
In this quiz, you will explore:
- Simpson’s rules and their applications
- Freshwater allowance and its implications
- Hydrostatic principles in naval architecture
- Practical calculations relevant to maritime operations
1. In the calculation of areas and volumes, the common interval “h” _____.
Is the equal length of the ordinates
Can be determined by dividing the length by the number of ordinates minus one
Both A and B are correct
Neither A nor B are correct
2. Which length is used when calculating the area of the waterplane at any draught?
Neither A nor B
Length between perpendicular
Length between perpendicular length overall Both A and B Neither A nor B
Length between perpendicular length overall Both A and B Neither A nor B
3. Which is/are TRUE regarding Simpson’s rules?
Error is reduced by using small intervals Error is reduced by combining Simpson’s rules 1, 2, and 3 Both A and B Neither A nor B
Error is reduced by using small intervals Error is reduced by combining Simpson’s rules 1, 2, and 3 Both A and B Neither A nor B
Error is reduced by using small intervals Error is reduced by combining Simpson’s rules 1, 2, and 3 Both A and B Neither A nor B
Error is reduced by using small intervals
4. Which formula is used to find the area under the curve between 0º and 30º angle of heel?
Simpson’s rule #2
Simpson’s rule #1
Simpson’s rule #3
Simpson’s rule 1, 2, and 3
5. Which can be used to determine an area whose side is an irregular shape?
Trapezoidal rule
Either A or B
Simpson’s rules
Neither A nor B
6. Which should be used for better approximation for an area under the curve?
Trapezoidal rule
Simpson’s rule #2
Simpson’s rule #1
Simpson’s rule #3
7. Which combinations of Simpson's rules are applicable if there are twelve ordinates? I. Combination of rule 1 and rule 2 II. Combination of rule 1 and rule 3 III. Combination of rule 2 and rule 3
I and II
I only
II and III
I, II and III
8. Which Simpon/s rule/s are applicable if there are eleven ordinates? I. Rule 1 II. Combination of rule 1 and rule 3 III. Combination of rule 2 and rule 3
I only
I and II
I and III
II and III
9. Which Simpson's rule is appropriate for better accuracy when solving for areas and volumes involving seven ordinates?
Rule 2
Rule 1
Combination of rule 1 and rule 2
Combination of rule 1 and 3
10. Which of the following rules states that the area between any three consecutive ordinates is equal to the sum of the end ordinates plus four times the middle ordinates, all multiplied by one third of the common interval?
Trapezoidal Rule
Simpsons Second
Simpson’s fiv-eight rule
Simpsons First Rule
11. Which Simpson’s rules are applicable if there are twelve (12) ordinates? I. Combination of Rule 1 and Rule 2 II. Combination of Rule 1 and Rule 3 III. Combination of Rule 2 and Rule 3
I only
II only
II and III
I and II
12. The Tons per centimeter immersion of a ship, __________.
Varies at different draughts.
Is constant at different draughts.
Inversely proportions to its draft.
All options are correct
13. The Total volume of enclosed spaces above the load waterline is the ______.
Basis for computing the ships's statutory free board ship's present free board Basis for computing the ships's deadweight capacity Ship's statuary loadline
Basis for computing the ships’ statutory free board.
Basis for computing the ships's deadweight capacity
Ship's statuary loadline
14. Dock water density may change due to
Tidal change and rain
Falling tides due to flooding current
Rising tides due to ebbing current
Precipitation alone
15. The Centre of buoyancy (B) ________
Acts vertically downwards
Does not change location when the ship heels
Is the Centre of the underwater volume of the ship
Does not change when the ship trims
16. Which is/are TRUE regarding a vessel’s freshwater allowance?
It is the vertical distance between the summer and freshwater load line
It is applicable at any vessel’s draught
Both A and B
Neither A nor B
17. Which is the change of draught of a vessel when it moves from seawater to fresh water?
FWA
TPC
TPI
DWA
18. TPC can be defined as _____.
The mass which must be loaded or discharged to change the ship’s mean draught by one inch
The weight of water bounded by two waterplanes separated by one centimeter
Both A and B
Neither A nor B
19. The water in which the vessel floats provide vertical support. What is the point through which this support is assumed to act on?
Center of gravity
Center of flotation
Metacenter
Center of buoyancy
20. When a ship-shaped vessel goes from seawater to fresh water, which of the following statements may occur? I. There will be a shift of the center of gravity. II. The center of flotation will NOT move.
I only
II only
Either I nor II
Neither I nor II
21. What is a measure of the amount of mass which is required to change a vessel’s mean draught by one centimeter?
TPI
TPC
Deadweight
Displacement
22. If the water in the dock is not salt water, which of the statement/s about TPC is/are true? I. TPC in the ship's hydrostatic table can be used at any water density. II. Compute the TPC at a particular draft using formula: TPC = Water-plane are x density of sea water/100
Neither I nor II
I only
II only
Either I or II
23. Which is /are true regarding" Freshwater Allowance"? I. The Vertical distance from the summer to the freshwater load line. II. Applicable only when the vessel is floating at her load draft
Either I or II
I only
II only
Neither I nor II
24. Which is/are true regarding" Freshwater Allowance"? I. The Vertical distance from the summer to the freshwater load line. II. Can be used at any given draft in sea water.
II only
I only
Either I or II
Neither I nor II
25. Which is/are true regarding "Freshwater Allowance"? I. FWA remains the same for a ship’s-shaped vessel. II. FWA decreases as the draft increases.
I only
II only
Either I or II
Neither I nor II
26. M/V MMMA's present mean draft in salt water is 9:00 meters displacing 52,233 MT. If her water-plane area is 6,009.6 square meter compute its TPC if she comes alongside in a dock with a density of 1.005 tonne per cubic meter.
61.6
60.096
60.396
61.598
27. What happens when a ship-shaped vessel goes from seawater to freshwater?
Trim will change
Draft will decrease
Shift of the center of gravity
Displacement will change
28. Where can you place a weight on a ship without causing a change of trim?
At the longitudinal center of buoyancy
At the longitudinal center of flotation
At the longitudinal center of gravity
At the point midway between the perpendiculars
29. Which is/are TRUE about an angle of loll?
Both A and B are correct
At the angle of loll GZ is zero
Angle of loll could either flop to port or starboard when heeled
Neither A nor B are correct
30. A rolling period test is the time taken for one complete oscillation from
Amidships to starboard then to port and back to amidships
Starboard to port and back to starboard
Neither a nor b
Both a and b
31. Which is determined in a rolling period test?
Light KG
Present KG
GZ
GM
32. What happens if an undivided tank is subdivided at the centerline?
Free surface effect is reduced to 1/4 to
Free surface effect is reduced to 1/2
Free surface effect is reduced to 1/8
Free surface effect is reduced to 1/16
33. Why does the metacentric height GM change when a compartment of a vessel is bilged?
New KM as a net result of change in KB + BM
There is a shift of the center of gravity
Additional water in the compartment as a result of flooding
New KM as a result of KG + GM
34. What is a subdivision requirement that specifies the number of compartments for which a ship must be able to sustain flooding and remain afloat?
Floodable length
Permissible length
Criterion of service numeral
Factor of subdivision
35. Free surface effect _____.
Is calculated by dividing the tank’s moment of inertia (M4) with the vessel’s displacement
Is also called loss of GM
Both A and B are correct
Neither A nor B are correct
36. What happens when a ship-shaped vessel goes from seawater to freshwater?
Draught will increase
Trim will change
Both A and B
Neither A nor B
37. What happens to the free surface effect if a tank 20 meters long, 20 meters wide and 1 meter deep is replaced by a tank 20 meters long, 10 wide and 2 meters deep which are both half-filled?
Free surface effect will be the same for both tanks
Free surface effect is reduced to one fourth of its original value
Free surface is reduced by one eight of its original value
Free surface on the which is 2 meter deep is greater
38. Which one of the following is true regarding free surface effect if a slacked ballast tank 20 meters long, 20 meters wide and 1 meter deep is subdivided at the center?
Free surface effect will remain the same
Free surface is reduced by one eight of its original value
Free surface of the tank which is three fourth filled is greater than if its half-filled
Free surface effect is reduce to one fourth of its original value
39. Which has the greatest effect in the calculation of "Free surface"?
Displacement
Density
Length
Breadth
40. What happens when an empty double bottom tank is half filled with seawater? I. Metacentric height becomes larger. II. Rolling period will be shorter.
Neither I nor II are correct
I only
II only
Either I or II
41. The present free surface effect of an undivided rectangular tank is 2 meters. If the tanks are subdivided at the centerline, what would now be the free surface?
0.25 M
0.50 M
1.00 M
2.00 M
42. Which statements would make a vessel’s stability tender? I. Any tank completely filled with ballast. II. Any tank that is ¾ full.
II and III
I and II
I and II I and III II and III I, II and III
I, II and III
43. In a box-shaped vessel, KM is calculated as the sum of KB and BM where BM= I/V. Which is/are TRUE with regards to BM?
Calculated by dividing the square of the breadth with the six times its draught (B²/6D)
BM is the metacentric radius
Both A and B are correct
Neither A nor B are correct
44. Which could be used to find the work done in inclining a vessel to an angle of heel?
Displacement multiplied by the righting arm (GZ)
Both A and B
Displacement multiplied by the area under the curve
Neither A nor B
45. What happens when a weight on board is shifted from the tank top of hold #1 to the main deck of hold #3?
Center of gravity goes up and the vessel will trim by the head
Underwater volume remains the same and the GM becomes smaller
Center of gravity goes down and the vessel will trim by the stern
Underwater volume will increase and the GM becomes smaller
46. Which statement/s/is/are true when LBC and LCG are in the same vertical line. I. There is NO Trim II. Vessel trims about the LCF until LBC and LCG are in the same vertical line.
I only
Either I only II
II only
Neither I nor II
47. A Ship list and trim about the _____.
Center of Flotation
Center Buoyancy
Center of Gravity
Metacenter
48. When the mass of a ship changes, the mass of water is displaced.
Change by an equal amount
Change by an amount less than mass displaced
Change by amount more than the mass displaced
Does not change at all
49. The Term stowage factor is an expression of the __________.
Mass per unit volume
Volume per cargo compartment
Mass loaded per cargo compartment.
Volume per unit mass
50. The amount of space on shipping vessel that is lost during stowage, measured in percentage of total space allocated for break bulk cargoes is called __________
Stowage Factor
Bale Capacity
Grain Capacity
Broken Stowage
51. The amount of volume by which the contestant falls short of filling a compartment, such as fuel or cargo tank is called _______.
Innage
Sounding
Ullage
Air pocket
52. What is the term for the angle between horizontal and the slope by bulk cargoes such as grain or ore?
Righting moment
Flooding angle
Angle of repose
Angle of loll
53. Which is true regarding metacentric height (GM)?
An indication of the vessel’s initial stability
True indication of the vessel’s stability
Both A and B
Neither A nor B
54. What is the metacentric height?
An indication of the ship’s stability at small angles of heel
True indication of the ship’s stability at large angle of heel
The sum of KB and BM
The sum of KG and GM
55. Which is/are TRUE with regards to righting arm? I. An initial indication of a vessel’s stability II. The horizontal distance between the vertical forces of gravity and buoyancy
I only
II only
Either I or II
Neither I nor II
56. Initial KM is calculated from _____?
KG + GM
KB + BM
KB + GM
KG + BM
57. Which angle of heel is a limitation of the formula GZ = GM sine data?
5°
45°
10°
90°
58. What is the limitation of the Wall-sided formula?
40° angle of heel
90° angleof heel
Angle of deck edge immesion
Angle of vanish stability
59. At an angle in excess of 10 the wall-sided formula can be used in determining the right arm the limitation of this formula is at the angle of heel ____.
When the deck edge is immersed
Of contra - flexure
Of vanishing stability
That coincidens with the highest GZ
60. Which statement/s best describes trim? I. A vessel trims about the center of flotation II. If the LCB is located aft of LCG the vessel will trim by the stern III. If the vessel has a trim, LCB and LCG lies in the same vertical line
I and III
I and II
II and III
I, II and III
61. Which statements are true when a vessel is in an even keel condition? I. LBC and LCG are 2 meters forward of the LCF. II. II. LCB and LCG coincide with the LCF. III. III. is 2 meters aft and LCG is 2 meters forward of LCF.
I and III
I and II
II and III
I,II,and III
62. What Happens if the LCB and LCG are both located 2 meters aft of the LCF?
Vessel will be on an even keel
Vessel will be down by the head
Vessel will be down by the head
Vessel will trim to the side of the LCB and LCG
63. Which statements are true when a cargo weighing 100 tonnes is shifted from the tank top to the starboard main deck on an upright vessel? I. Vessel’s GM will move up. II. Vessel will have a starboard list. III. The vessel’s center of gravity will move parallel to the movement of the cargo.
I and II
I, II and III
I and III
II and III
64. Ice accretion on and the absorption of water by deck cargo
Lowers the KG of the vessel
Lengthens the rolling period of the vessel
Positively trims the vessel
Factor in the reduction or loss of GM
65. The Increase in KG is ______. I. Affected mainly by the breadth of the free surface. II. Is called the free surface effect. III. III. Is dependent on the number of longitudinal subdivisions in the tank.
Both II and III are correct
None of the above is correct
None of the above
Both I and II are correct
66. In loading, discharging or moving weights, trimming tables can be used to __________
Determine the changes in draughts
Determine the location of the transverse metacenter
Calculate the rolling period of the ship for the GM
Only when the vessel is in a listed condition
67. If a tank is full of liquid, its effect on the position of the ship’s center of gravity _______
Is called the free surface effect
Is the same as if the liquid were a solid of the same mass
Cause the ship to roll further than when it is party filled
Is a virtual rise in KG
68. If the ship's center of floatation is amidships floating at an even keel and a weight is loaded midway between the LCF and her aft perpendicular, _________.
She will trim by the head
She will remain at even keel
She will trim by the stern
She will list to a side
69. The center of floatation which may be forward of or abaft amidships, is situated at ________.
The Centre of area of the waterplane
Any of the perpendiculars
The baseline
The tripping center
70. If a mass already on board is moved through a distance forward or aft of the longitudinal center of flotation ______.
A capsizing moment is produced
A trimming moment is produced
An upsetting moment is created
A listing moment is created
71. At what point does the lever to create a moment to change trim by 1 cm (MCT 1 cm) act about?
Center of floatation
Center of Gravity
Center of Buoyancy
Metacenter
72. The two points that interact together to cause the ships to trim are the ________.
VCG and LCB
LCG and the LCB
Metacenter and the LCG
Metacenter and the LCF
73. If the causes of a severe list or trim is off-centered ballast, Counter flooding into empty tanks will _______.
Decrease the list or trim
Increase the righting moment
Increase the righting arm
Increase the list or trim
74. Which would produce a heeling moment?
Head-on sea
Steady beam wind
Both A and B
Neither A nor B
75. Which if the following is the point of intersection of successive buoyancy force vectors as the angle of heel increases by a small angle?
Transverse metacenter?
Longitudinal metacenter
Keel
Center of buoyancy
76. A vessel continually lists to one side and would have a rolling period. Which of the following is TRUE?
The list can be corrected by reduction of its KM
The VCG is along the centerline
There is an asymmetrical distribution of weight in the vessel.
Vessel has negative GM.
77. Which is determined in an inclining experiment?
Light KG
Light displacement
Light KB
Light BM
78. Which is NOT an IMO intact stability criterion for ships?
The GZ should be at least 0.20 m at an angle of heel equal to or greater than 30º
For passenger ships, the angle of heel on account of crowding of passengers to one side should NOT exceed 5º
Maximum GZ should occur at an angle of heel preferably exceeding 30º
The initial metacentric height should NOT be less than 0.15 m
79. A ship will heel when turning until the ____.
Resulting righting moment equals the heeling moment
Centrifugal force is equal to centripetal force
Centrifugal force is greater than centrifugal force
Righting moment is greater than the heeling moment
80. Which statement is true regarding the force that produces the acceleration while turning? I. Act toward the center of the turn II. Act at about the center of gravity of the vessel III. Causes the ships to heel.
I and II
I and III
II and III
I,II and III
81. Which is/are true about rolling of ships? I. A ship with a large GM will have a long rolling period. II. II. Ballasting double bottom tanks full will rolling period.
Neither I nor II
I only
II only
Either I or II
82. Rolling period test is done on vessel with a length up to ___ meters.
15
70
30
100
83. Which is NOT an IMO intact stability requirement for a cargo ship?
Initial solid GM shall NOT be less than 0.15 m
GZ = or > than 0.2 m at angle of heel = or > than 30°
Maximum GZ must be at NOT less than 25° angle of heel
All options are IMO intact stability requirements
84. Which is the minimum allowed GM for ship’s carrying timber throughout the voyage?
0.01 m
0.10 m
0.20 m
0.15 m
85. Volumetric heeling moment values are based on an assumed surface grain shift of _____.
30º for a partly filled compartment
Both A and B are correct
Neither A nor B are correct
15º for a full compartment
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