M7.10 Springs Flashcards
What happens to springs when exposed to high temperatures?
A) They become overheated which can cause it to be stronger and more flexible.
B) They can become overheated and lose their strength or temper.
C) They become more resistant to corrosion.
B) They can become overheated and lose their strength or temper.
What does blueing on a spring indicate?
A) The spring is more durable.
B) The spring has been overheated.
C) The spring is rust-resistant.
B) The spring has been overheated.
What does pitting on a spring indicate?
A) The spring is extra durable.
B) The spring has been overheated.
C) The spring has undergone corrosion.
C) The spring has undergone corrosion.
What are the 5 key aspects inspected in springs?
- Blueing (indicates overheating)
- Pitting (caused by corrosion)
- Compression strength (Fatigue)
- Free length (Static Measurement)
- Distortion (Load or Deflection)
What happens when extreme blueing on a spring occurs?
A) The spring becomes more flexible.
B) A change in the metal’s color.
C) The spring gains additional strength.
B) A change in the metal’s color.
What does overheating indicate in a spring?
A) Loss of temper or strength.
B)The spring becomes more elastic.
C) The spring improves in durability.
A) Loss of temper or strength.
How can overheating damage be identified on a spring?
A) By a significant increase in flexibility.
B) By a smooth, shiny surface.
C) By blistering of the surface protection or blueing.
C) By blistering of the surface protection or blueing.
What is pitting in a spring?
A) A sign of corrosion.
B) A sign of blueing.
C) A sign of improved elasticity.
A) A sign of corrosion.
Why is it important to inspect springs for corrosion?
A) Corrosion reduces the load capacity of the spring.
B) Corrosion can lead to premature failure.
C) Corrosion improves the spring’s resistance to wear.
A) Corrosion reduces the load capacity of the spring.
Does corrosion affect static springs?
A) No, corrosion only affects dynamic springs.
B) Yes, corrosion can occur on static springs and reduce their load capacity.
C) Corrosion has no significant impact on static springs.
B) Yes, corrosion can occur on static springs and reduce their load capacity.
How is fatigue in springs checked?
A) By visually inspecting the spring for cracks.
B) By measuring the spring’s temperature under load.
C) By comparing them against figures or graphs to determine if they are still suitable for service.
C) By comparing them against figures or graphs to determine if they are still suitable for service.
What does fatigue testing assess in a spring?
A) Whether the spring can handle more weight.
B) Whether the spring is in a suitable condition to continue in service.
C) Whether the spring is rust-resistant.
B) Whether the spring is in a suitable condition to continue in service.
What is the most common check performed on a coil spring?
A) Load or Deflection (Distortion) Check
B) Static measurement (free length).
C) Checking the spring’s surface for pitting.
B) Static Measurement (Free Length)
What does a free length measurement check on a spring?
A) The spring’s maximum load capacity.
B) The unloaded spring’s exact dimension within a small range of tolerance.
C) The spring’s resistance to corrosion.
B) The unloaded spring’s exact dimension within a small range of tolerance.
Who provides the exact dimensions for a spring’s free length?
The manufacturer.
What is the load or deflection check used to measure in springs?
It measures the spring’s response to:
- compressive,
- tensile,
- torsional loading, often to assess distortion.
When is a load or deflection check typically performed on springs?
A) On springs used in more critical areas.
B) On springs that are rust-resistant.
C) On springs with smaller coil diameters.
A) On springs used in more critical areas.
What equipment is used to perform a load or deflection check on a spring?
A) A special test rig with a meter displaying load vs deflection figures.
B) A caliper to measure the spring’s length.
C) A microscope to inspect the spring for cracks.
A) A special test rig with a meter displaying load vs deflection figures.
What does a load or deflection check assess in a spring?
A) The spring’s ability to resist corrosion.
B) The spring’s behavior under different types of loading and any potential distortion.
C) The spring’s maximum temperature tolerance.
B) The spring’s behavior under different types of loading and any potential distortion.
What type of environment is the load or deflection check typically performed on springs?
In a workshop environment.
What is Static Measurement also called?
A) Load measurement
B) Free length measurement
C) Deflection measurement
B) Free length measurement
What is Static Measurement also called?
A) Load measurement
B) Free length measurement
C) Deflection measurement
B) Free length measurement
What is Load or Deflection Check also known as?
A) Stress test
B) Distortion check
C) Fatigue test
B) Distortion check
What is Fatigue also known as?
A) Torsion strength
B) Tensile strength
C) Compression strength
C) Compression strength
