SVMO EXAMS QUESTIONS |
GUARANTEED ACCURATE ANSWERS
|LATEST VERSION 2025\26
Steel is an alloy consisting mainly of which two materials? - ACCURATE ANSWERS✔✔ Iron
&Carbon
Why is the percentage of carbon content in steels varied? How does increasing the content of
carbon affect the steel? - ACCURATE ANSWERS✔✔ Makes the steel harder
Which type of metal is deemed to be easier to weld; plain carbon steel or cast iron? Why? -
ACCURATE ANSWERS✔✔ Cast iron (2% carbon) easier to weld because less carbon content
What is "stainless steel"? - ACCURATE 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? - ACCURATE ANSWERS✔✔ Oxidation of metals reaction with oxygen
What are some common methods of reducing corrosion in tanks and piping onboard vessels? -
ACCURATE ANSWERS✔✔ Using zinc anodes, using aluminum, brass metals ie using proper
metal & coatings
What is meant by the term "non-ferrous metal"? - ACCURATE ANSWERS✔✔ does not contain
iron ie aluminum and copper
What are some common uses for copper? - ACCURATE 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? - ACCURATE ANSWERS✔✔ Brass - copper 95% zinc 5% Bronze
copper - 10% zinc - 5%
What are some common uses of zinc, brass and aluminum onboard vessels? - ACCURATE
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? - ACCURATE ANSWERS✔✔ a) Engine
block, exhaust manifold
Where onboard a vessel could plastics or resins be used in the construction of parts or
components? - ACCURATE 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. - ACCURATE ANSWERS✔✔ 3) aluminium brass
What are the differences between Classes A, B and C fires? - ACCURATE 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? - ACCURATE
ANSWERS✔✔ Lowest temperature at which a fire can ignite. Dangerous flammable - gasoline -
43 C, safe flammable - diesel - 62C
GUARANTEED ACCURATE ANSWERS
|LATEST VERSION 2025\26
Steel is an alloy consisting mainly of which two materials? - ACCURATE ANSWERS✔✔ Iron
&Carbon
Why is the percentage of carbon content in steels varied? How does increasing the content of
carbon affect the steel? - ACCURATE ANSWERS✔✔ Makes the steel harder
Which type of metal is deemed to be easier to weld; plain carbon steel or cast iron? Why? -
ACCURATE ANSWERS✔✔ Cast iron (2% carbon) easier to weld because less carbon content
What is "stainless steel"? - ACCURATE 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? - ACCURATE ANSWERS✔✔ Oxidation of metals reaction with oxygen
What are some common methods of reducing corrosion in tanks and piping onboard vessels? -
ACCURATE ANSWERS✔✔ Using zinc anodes, using aluminum, brass metals ie using proper
metal & coatings
What is meant by the term "non-ferrous metal"? - ACCURATE ANSWERS✔✔ does not contain
iron ie aluminum and copper
What are some common uses for copper? - ACCURATE 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? - ACCURATE ANSWERS✔✔ Brass - copper 95% zinc 5% Bronze
copper - 10% zinc - 5%
What are some common uses of zinc, brass and aluminum onboard vessels? - ACCURATE
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? - ACCURATE ANSWERS✔✔ a) Engine
block, exhaust manifold
Where onboard a vessel could plastics or resins be used in the construction of parts or
components? - ACCURATE 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. - ACCURATE ANSWERS✔✔ 3) aluminium brass
What are the differences between Classes A, B and C fires? - ACCURATE 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? - ACCURATE
ANSWERS✔✔ Lowest temperature at which a fire can ignite. Dangerous flammable - gasoline -
43 C, safe flammable - diesel - 62C
