Barabi2
Marine Stability Quiz
Test your knowledge on marine stability and ship construction with our engaging quiz designed for maritime enthusiasts and professionals alike. With 51 carefully crafted questions, you'll explore vital concepts such as buoyancy, draft, and ship construction techniques.
Join the challenge today and discover:
- Essential maritime terminology
- Principles of naval architecture
- Stability factors affecting vessels
53) When a vessel is floating upright, the distance from the keel to the metacenter is called the ---?
Height of the metacenter
Height of the baseline
Metacentric radius
Metacentric diameter
None of the above is correct
54) What is used as an indicator of initial stability?
KG
GM
KM
GZ
None of the above is correct
55) What is the stability term for the distance from the center of gravity (G) to the Metacenter (M), when small-angle stability applies?
Metacentric radius
Height of the metacenter
metacentric height
righting arm
None of the above is correct
56) Addition of weight to a vessel will ALWAYS ---?
Increase righting moments
increase GM
All of the above
reduce reserve buoyancy
None of the above is correct
57) The upward pressure of displaced water is called?
Buoyancy
Deadweight
draft
freeboard
None of the above is correct
58) Freeboard is measured from the upper edge of the ---?
Bulwark
Deck line
gunwale bar
Sheer strake
None of the above is correct
59) Which is an indication of reserve buoyancy?
Righting moment
Rolling period
Freeboard
Metacentric height
None of the above is correct
60) Buoyancy is a measure of the ship's ---?
Deadweight
Freeboard
Midships strength
Ability to float
None of the above is correct
61) What is NOT a motion of the vessel?
Trim
Roll
Pitch
Yaw
None of the above is correct
62) What is the difference between ships and boats?
Ships are generally larger than boats
There is no universally accepted distinction
Ships are generally smaller than boats
None of the above is correct
63) How the ships are constructed?
Using the principles of naval architecture
Using the principles of environmental engineering
Using the principles of naval architecture
None of the above is correct
64) What is the name of the minimum water depth a ship can safely navigate in?
A beam
A tonnage
A draft
None of the above is correct
65) Where are ships usually constructed?
In a shipyard
In a factory
In a ship canal
None of the above is correct
66) How were the ships powered 100 years ago?
Electric powered
Steam powered
Human powered
None of the above is correct
67) Which surface does ship travel?
Land
Air
Water
None of the above is correct
68) What kind of machine is a ship?
A vehicle
A robot
A wheel and axle
None of the above is correct
69) If the deck of a vessel has an upward curve, it is said to have?
flare
camber
deadrise
None of the above is correct
70) The flare of the bow ---?
increases speed
decreases speed
promotes deck dryness
None of the above is correct
71) If the main stiffeners of the hull run from side to side. The arrangement is called a ---?
Transversely framed structure
Longitudinally framed structure
Vertically framed structure
None of the above is correct
72) On a steel vessel, vertical plates fitted transversely to the bottom shell are known as?
roofs
Floors
walls
None of the above is correct
73) The void space between two bulkheads is called?
keel
floor
Cofferdam
None of the above is correct
74) A collision bulkhead must be fitted to all vessels?
Over 16 meters in measured length
over 24 meters in measured length
Over 12 meters in measured length
None of the above is correct
75) All pipes passing through a watertight bulkhead must?
Not carry fuel oil
must be flanged to it
pass directly through it
None of the above is correct
76) In general, the survey requirements require a vessel to be?
Watertight above the freeboard deck
weathertight below the freeboard deck
Watertight below the freeboard deck
None of the above is correct
77) Deadlight is the name given to?
A hinged metal cover on a porthole
Curtains on a window
Generator failure
None of the above is correct
78) Doors in watertight bulkheads can be?
hinged type only
sliding type or hinged
sliding type only
None of the above is correct
79) Watertight seals of closures should?
be kept well-greased
be painted bright orange
should never be painted
None of the above is correct
80) Correct Definition of Offshore?
The word “Offshore” in the oil and gas industry refers to industrial activities in open sea, starting from the search of oil and gas to production and transporting them to the shore
Offshore is a unification of gas and oil companies
Offshore is a ships type which are used to survey the bottom of the sea to make charts for navigation.
None of the above is correct.
81) which type of vessels are Salvage?
Dredgers
Tugs and Diving vessels
Cruisers
None of the above is correct.
82) What differs “Heavy-cargo ships” from other types of ships?
They carry cargo more and more in containers instead of on trays.
These types of vessels are used to carry liquefied cargos
Their construction and stability allow them to carry extremely large and heavy objects.
None of the above is correct.
83) What types of vessels are “bulk carries”?
Bulk carriers are ships especially designed to carry loose cargo in bulk
Bulk carriers are used to carry the crude oil from loading port near an oil field or from the end of a pipeline to a refinery.
Bulk carriers are designed to carry heavy or bulky objects
None of the above is correct.
84) Which type of vessels are Roll-on/Roll-off?
Cruise ships and Sailing/motor yachts
RoRo Freighters and Car and passenger ferries
Multipurpose and container vessels
None of the above is correct.
85) What for are designed “Cable laying ships”?
They are designed to deepen channels and fairways.
They are used to escort large ships along dangerous passages.
Cable laying ships are vessels, which can lay one or more cables on the sea floor.
None of the above is correct.
86) What is the purpose of “Seismic Survey Vessel”?
The purpose of a “Seismic Survey Vessel” is to produce detailed information for oil companies as a basis for actual production drilling.
Their construction and stability allow them to carry extremely large and heavy objects.
They are designed to deepen channels and fairways.
None of the above is correct.
87) What for is used “Drilling ships”?
They are used to escort large ships along dangerous passages.
Drilling ship is used for drilling exploration and production wells in medium to deep water.
These types of vessels are used to carry liquefied cargos
None of the above is correct
88) What for is used Platform Supply vessel (PSV)?
PSV is used for drilling exploration and production wells in medium to deep water.
They are designed to deepen channels and fairways.
PSV is used for the supply of fuel, drilling mud, fresh water, drilling equipment and pipes.
None of the above is correct
89) What for is used Diving Support Vessel (DSV)?
DSV vessels are used to support divers doing inspection, construction or repair work on subsea structures.
DSV is used for the supply of fuel, drilling mud, fresh water, drilling equipment and pipes.
DSV is used for drilling exploration and production wells in medium to deep water.
None of the above is correct
90) What type of vessels are trawlers?
Trawlers are large yachts with a length of 25 meters
They are designed to deepen channels and fairways.
Trawlers are fishing vessels which drag their nets through the water.
None of the above is correct
91) what is bending moments?
The bending moment is the amount of bending caused to the ship's hull by external forces.
When two external parallel forces act in opposite directions on any part of a structure to break it apart or shear it.
When a ship is in a calm water, the total upward force equals the total weight of the ship.
None of the above is correct
92) How is expressed shearing forces?
Shearing forces are expressed in meters
shearing forces are expressed in tons
shearing forces are expressed in volume
None of the above is correct
93) What is hogging?
Sagging is the stress a ship's hull or keel is placed under when a wave is the same length as the ship and the ship is in the trough of two waves.
A bending moment that produces concave bending at midspan of a simply supported beam
Hogging is the stress a ship's hull or keel experiences that causes the center or the keel to bend upward.
None of the above is correct
94) What is sagging?
Sagging is the stress a ship's hull or keel is placed under when a wave is the same length as the ship and the ship is in the trough of two waves.
Sagging is the stress a ship's hull or keel experiences that causes the center or the keel to bend upward.
A bending moment that produces concave bending at midspan of a simply supported beam
None of the above is correct
95) What is pitching of the vessel?
B – It is the tilting motion of the ship from side to side
A – Pitching is a up and down motion of a vessel
C – It is the stress a ship's hull or keel experiences that causes the center or the keel to bend upward.
D – None of the above is correct
96) What IS NOT the function of double bottom and wing tanks?
To increase the transverse and the longitudinal strength of the ship
Additional safety when the bottom is damaged or in case of collision
To store a cargo, in case more space needed
None of the above is correct
97) What is the purpose of the bulbous bow?
Bulbous bow can help to reduce a ship's resistance
Bulbous bow help vessel to sail/move faster
Bulbous bow help to influence the list and the trim
None of the above is correct
98) What is forecastle of the ship?
Forecastle is the midship
Forecastle is the forward deck of the ship
Forecastle is the aft deck of the ship
None of the above is correct
99) What is called monkey deck on the ship?
Monkey deck is a machinery space of the ship
Monkey deck is the forward deck of the ship
Monkey deck refers to a place on the ship which is located at the top most accessible height. Technically, it is a deck located directly above the navigating bridge of the ship.
None of the above is correct
100) What is the “bridge” on the ship?
A bridge or wheelhouse, is a room or platform of a ship from which the ship can be commanded.
A bridge is a machinery space of the ship
A bridge is the forward deck of the ship
None of the above is correct
101) What is “Engine room” on the ship?
ER is a room or platform of a ship from which the ship can be commanded.
the engine room (ER) is the compartment where the machinery for marine propulsion is located.
C – ER is located directly above the navigating bridge of the ship
None of the above is correct
102) What is ships gangway?
Ngway is a passageway from the deck to cargo tanks
Gangway is a pilot ladder
A ship gangway or accommodation ladder, is a passageway that joins a ship's quarterdeck to the forecastle. Also, is for passengers to safely board and exit a ship.
None of the above is correct
103) What is a pilot ladder?
A pilot ladder is a highly specialized form of rope ladder, typically used on board cargo vessels for the purposes of embarking and disembarking pilots.
A pilot ladder is a passageway that joins a ship's quarterdeck to the forecastle. Also, is for passengers to safely board and exit a ship.
Gangway is a passageway from the deck to cargo tanks
None of the above is correct
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