SVMO Exam Questions with Correct Answers Already Passed
Steel is an alloy consisting mainly of which two materials? - Answers Iron &Carbon
Why is the percentage of carbon content in steels varied? How does increasing the content of carbon
affect the steel? - Answers Makes the steel harder
Which type of metal is deemed to be easier to weld; plain carbon steel or cast iron? Why? - Answers
Cast iron (2% carbon) easier to weld because less carbon content
What is "stainless steel"? - Answers Steel alloy with minimum 10% chromium. It does not corrode, rust
or stain with water
What is meant by the term "corrosion," and which types of metals are most and least susceptible to
corrosion? - Answers Oxidation of metals reaction with oxygen
What are some common methods of reducing corrosion in tanks and piping onboard vessels? - Answers
Using zinc anodes, using aluminum, brass metals ie using proper metal & coatings
What is meant by the term "non-ferrous metal"? - Answers does not contain iron ie aluminum and
copper
What are some common uses for copper? - Answers Wiring, circuits, plumbing, pipes
Brass and bronze are classed as "alloys." Which two metals make up these alloys, and generally what is
the percentage of each? - Answers Brass - copper 95% zinc 5% Bronze copper - 10% zinc - 5%
What are some common uses of zinc, brass and aluminum onboard vessels? - Answers a) Zinc anodes for
anti-corrosion, brass - small pipes& instruments, aluminum - structures or hull of ship, tanks & piping
What are some common uses of cast iron onboard vessels? - Answers a) Engine block, exhaust manifold
Where onboard a vessel could plastics or resins be used in the construction of parts or components? -
Answers Superstructure & hull of small vessels & through hull fittings
Of the four materials listed below, the preferred material for tubes of a large, tubular heat exchanger for
engine cooling water is:
(1) pure aluminium;
(2) pure copper;
(3) aluminium brass;
(4) aluminium zinc. - Answers 3) aluminium brass
What are the differences between Classes A, B and C fires? - Answers A - ordinary combustibles B -
flammable liquids & gasses C - electrical
, What is meant by the term "flash point"? Which fuel has a higher flash point, gasoline or diesel? Which
is the preferred fuel to be used onboard vessels and why non f? - Answers Lowest temperature at which
a fire can ignite. Dangerous flammable - gasoline - 43 C, safe flammable - diesel - 62C
What is meant by the term "spontaneous combustion"? - Answers combustion without external ignition,
self-ignition of combustible material
Why is a heat protective lagging placed on exhaust manifolds of engines? - Answers Reduces
temperature in engine room, so you don't burn yourself when you touch it
What hazards do soiled and oily rags improperly stored onboard a vessel pose? - Answers Fire hazard &
harmful fumes
High-pressure fuel injection lines fitted to diesel engines are often doubled. What is the purpose of
doing this? - Answers To prevent leaks & fire safety
Where is the preferred location to store paint and paint cleaning chemicals onboard a vessel? What is
normally fitted in these special areas? - Answers Well vented storage locker with temperature alarms &
fire exit
How should spare and small quantities of lubricants, greases and oils be stored onboard a vessel? What
sort of hazards may they present if improperly stored? - Answers Proper containers labeled with sealed
lids. Slipping hazard, fire hazard, pollution to the environment
Vents, which are fitted to a fuel tank, are normally terminated in which location on a vessel? What
special arrangements are fitted at the termination point of these vents? - Answers Outside on deck in an
area to contain overspills & fire screen to prevent entry of flames
What good engineering practices help reduce the possibility of fires in the engine room? - Answers a) no
hot work ie grinding, welding
What fire hazards are associated with bunkering operations and how are they minimized? - Answers No
smoking, grounding to prevent static charge, having a fire watch
What are some common stores that are carried onboard vessels that may create a fire hazard? -
Answers Fuel, oil, cooking oil, solvents
The termination point of fuel tank vents are often fitted with a fine gauge wire mesh, the principle
purpose of which is to:
(1) prevent the entry of dirt into the tank;
(2) prevent the entry of flames into the tank;
(3) prevent the overflow of fuel from the tank;
Steel is an alloy consisting mainly of which two materials? - Answers Iron &Carbon
Why is the percentage of carbon content in steels varied? How does increasing the content of carbon
affect the steel? - Answers Makes the steel harder
Which type of metal is deemed to be easier to weld; plain carbon steel or cast iron? Why? - Answers
Cast iron (2% carbon) easier to weld because less carbon content
What is "stainless steel"? - Answers Steel alloy with minimum 10% chromium. It does not corrode, rust
or stain with water
What is meant by the term "corrosion," and which types of metals are most and least susceptible to
corrosion? - Answers Oxidation of metals reaction with oxygen
What are some common methods of reducing corrosion in tanks and piping onboard vessels? - Answers
Using zinc anodes, using aluminum, brass metals ie using proper metal & coatings
What is meant by the term "non-ferrous metal"? - Answers does not contain iron ie aluminum and
copper
What are some common uses for copper? - Answers Wiring, circuits, plumbing, pipes
Brass and bronze are classed as "alloys." Which two metals make up these alloys, and generally what is
the percentage of each? - Answers Brass - copper 95% zinc 5% Bronze copper - 10% zinc - 5%
What are some common uses of zinc, brass and aluminum onboard vessels? - Answers a) Zinc anodes for
anti-corrosion, brass - small pipes& instruments, aluminum - structures or hull of ship, tanks & piping
What are some common uses of cast iron onboard vessels? - Answers a) Engine block, exhaust manifold
Where onboard a vessel could plastics or resins be used in the construction of parts or components? -
Answers Superstructure & hull of small vessels & through hull fittings
Of the four materials listed below, the preferred material for tubes of a large, tubular heat exchanger for
engine cooling water is:
(1) pure aluminium;
(2) pure copper;
(3) aluminium brass;
(4) aluminium zinc. - Answers 3) aluminium brass
What are the differences between Classes A, B and C fires? - Answers A - ordinary combustibles B -
flammable liquids & gasses C - electrical
, What is meant by the term "flash point"? Which fuel has a higher flash point, gasoline or diesel? Which
is the preferred fuel to be used onboard vessels and why non f? - Answers Lowest temperature at which
a fire can ignite. Dangerous flammable - gasoline - 43 C, safe flammable - diesel - 62C
What is meant by the term "spontaneous combustion"? - Answers combustion without external ignition,
self-ignition of combustible material
Why is a heat protective lagging placed on exhaust manifolds of engines? - Answers Reduces
temperature in engine room, so you don't burn yourself when you touch it
What hazards do soiled and oily rags improperly stored onboard a vessel pose? - Answers Fire hazard &
harmful fumes
High-pressure fuel injection lines fitted to diesel engines are often doubled. What is the purpose of
doing this? - Answers To prevent leaks & fire safety
Where is the preferred location to store paint and paint cleaning chemicals onboard a vessel? What is
normally fitted in these special areas? - Answers Well vented storage locker with temperature alarms &
fire exit
How should spare and small quantities of lubricants, greases and oils be stored onboard a vessel? What
sort of hazards may they present if improperly stored? - Answers Proper containers labeled with sealed
lids. Slipping hazard, fire hazard, pollution to the environment
Vents, which are fitted to a fuel tank, are normally terminated in which location on a vessel? What
special arrangements are fitted at the termination point of these vents? - Answers Outside on deck in an
area to contain overspills & fire screen to prevent entry of flames
What good engineering practices help reduce the possibility of fires in the engine room? - Answers a) no
hot work ie grinding, welding
What fire hazards are associated with bunkering operations and how are they minimized? - Answers No
smoking, grounding to prevent static charge, having a fire watch
What are some common stores that are carried onboard vessels that may create a fire hazard? -
Answers Fuel, oil, cooking oil, solvents
The termination point of fuel tank vents are often fitted with a fine gauge wire mesh, the principle
purpose of which is to:
(1) prevent the entry of dirt into the tank;
(2) prevent the entry of flames into the tank;
(3) prevent the overflow of fuel from the tank;
