WorksheetsEMAT
Total questions: 15
Worksheet time: 8mins
What is the main characteristic of ferrous metals?
a) They are lightweight
b) They are non-magnetic
c) They are iron-based
d) They are resistant to corrosion
Which of the following metals is considered non-ferrous?
a) Steel
b) Aluminum
c) Cast iron
d) Stainless steel
What is the primary alloying element in carbon steel?
a) Chromium
b) Nickel
c) Copper
d) Carbon
Which metal is widely used for ship propellers due to its corrosion resistance?
a) Copper
b) Bronze
c) Aluminum
d) Stainless steel
Which of the following is a key disadvantage of ferrous metals in marine applications? a) High strength
a) High strength
b) Heavy weight
c) High cost
d) Poor electrical conductivity
What makes non-ferrous metals like aluminum ideal for ship superstructures?
a) High strength
b) High density
c) Low corrosion resistance
d) Lightweight and corrosion resistance
Which non-metal material is commonly used for insulation in ship cabins?
a) Stainless steel
b) Ceramics
c) Polymers
d) Aluminum
What property makes ferrous metals ideal for load-bearing parts on ships?
a) High corrosion resistance
b) High tensile strength
c) Low density
d) Non-magnetic nature
Which of the following materials is prone to developing rust?
a) Cast iron
b) Bronze
c) Polymers
d) Copper
In which of the following applications are non-metals like ceramics typically used in ships?
a) Engine parts
b) Electrical wiring
c) High-temperature insulation
d) Anchors
Non-ferrous metals are iron-based and magnetic.
a) True
b) False
Stainless steel is a ferrous metal known for its resistance to corrosion.
a) True
b) False
Non-metals are primarily used in load-bearing parts of a ship.
a) True
b) False
Non-ferrous metals are generally heavier than ferrous metals.
a) True
b) False
Polymers, a type of non-metal, are commonly used in ship coatings to prevent corrosion.
a) True
b) False
