General Studies · Engine Cooling System
What is the primary function of the pressure cap on a radiator?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To completely stop water evaporation
- 2To seal the radiator tightly without pressure release
- 3To maintain and control the pressure within the cooling system to raise the boiling point✓
- 4To artificially decrease the coolant temperature
Correct answer
To maintain and control the pressure within the cooling system to raise the boiling point
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