WorksheetsNon-Destructive Testing Quiz, SEMI FINAL
Total questions: 20
Worksheet time: 7mins
Which test method uses high-frequency sound waves to detect internal flaws in metals?
Radiographic testing
Ultrasonic testing
Magnetic particle testing
Dye penetrant testing
What is the main purpose of non-destructive testing onboard a ship?
To determine properties without damaging components
To evaluate the breaking point of materials
To permanently deform the sample for analysis
To measure heat expansion after melting
Which test involves applying tension to a specimen until it breaks?
Fatigue test
Tensile test
Ultrasonic test
Visual test
Which method uses magnetic fields to reveal surface cracks on ferromagnetic metals?
Hardness testing
Magnetic particle testing
Compression testing
Radiographic testing
Which non-destructive method uses a dye and developer to reveal surface flaws?
Hardness test
Impact test
Liquid penetrant test
Fatigue test
Which of the following describes destructive testing?
The specimen is damaged during testing
The test leaves the part completely reusable
The inspection does not alter the sample
The component remains fully functional after test
Which NDT technique uses X-rays or gamma rays to inspect welds?
Radiographic testing
Magnetic particle testing
Ultrasonic testing
Tensile testing
What is a key advantage of NDT in ship maintenance?
It preserves the integrity of the part being tested
It always requires removing the component from the system
It reduces material hardness permanently
It requires destroying the specimen to obtain results
Which destructive test measures a material’s resistance to indentation?
Impact test
Hardness test
Radiographic test
Ultrasonic test
Why is destructive testing less commonly used during routine ship maintenance?
It damages or destroys the component tested
It provides instant results without tools
It increases the service life of the equipment
It prevents detection of structural defects
Which material property refers to the ability to resist corrosion in seawater environments?
Hardness
Corrosion resistance
Elasticity
Brittleness
The ability of a material to be drawn into thin wires without breaking is called:
Malleability
Ductility
Toughness
Rigidity
What property enables a material to absorb energy and deform without fracturing?
Hardness
Toughness
Brittleness
Elasticity
Which characteristic makes stainless steel ideal for marine pipelines and tanks?
It resists corrosion and rust
It is very brittle and hard
It expands rapidly when heated
It is a poor conductor of heat
Which property allows a metal to return to its original shape after being deformed?
Elasticity
Rigidity
Hardness
Density
Why is aluminum commonly used in ship structures?
It is lightweight and corrosion-resistant
It is magnetic and dense
It is brittle and non-conductive
It has high melting temperature and low strength
Which property allows a metal to be hammered or rolled into sheets?
Malleability
Brittleness
Elasticity
Fatigue strength
What is the main reason for selecting heat-resistant alloys in engine components?
They withstand high temperatures without deforming
They are cheaper and easier to machine
They corrode faster in saltwater
They have low strength under load
A material that breaks suddenly without significant deformation is said to be:
Brittle
Ductile
Tough
Elastic
What property allows materials to resist failure under repeated loading or vibration?
Fatigue strength
Thermal conductivity
Electrical resistance
Surface hardness
