What is the primary characteristic of multi-grade engine oil?

Understanding Multi-Grade Engine Oils

Interactive Video
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Physics
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9th - 10th Grade
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Hard

Patricia Brown
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is only suitable for cold climates.
It changes viscosity with temperature changes.
It is only suitable for hot climates.
It remains the same viscosity regardless of temperature.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the oil grade 5W30, what does the '5W' indicate?
The oil's thickness when cold.
The oil's thickness when hot.
The oil's viscosity at low temperatures.
The oil's viscosity at high temperatures.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the '30' in 5W30 oil represent?
The oil's viscosity at high temperatures.
The oil's thickness when hot.
The oil's thickness when cold.
The oil's viscosity at cold temperatures.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a single-grade oil behave when the engine is cold?
It provides optimal lubrication immediately.
It becomes too thin to lubricate effectively.
It remains the same viscosity as when hot.
It is too thick to reach engine components quickly.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would happen if a 5W oil stayed at 5 viscosity as the engine heated up?
It would thicken and protect the engine.
It would remain unchanged and be ineffective.
It would provide optimal lubrication.
It would become too thin and cause engine damage.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What transformation occurs in a 5W30 oil as the engine heats up?
It remains a cold 5 viscosity.
It transforms into a hot 30 viscosity.
It becomes a cold 30 viscosity.
It stays as a hot 5 viscosity.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a multi-grade oil like 5W30 benefit an engine compared to a single-grade oil?
It remains thick at all times.
It provides consistent viscosity regardless of temperature.
It is only effective in cold conditions.
It adjusts its viscosity to suit the engine's temperature.
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