Practice question
When riding during the first 15 minutes of rainfall following a prolonged dry period in Bahrain, why is the roadway exceptionally treacherous?
- Raindrops chemically dissolve tyre rubber
- Rainwater mixes with accumulated engine oil, grease, rubber dust, and desert dirt on the asphalt, creating a slick soapy emulsion before washing clean
- The asphalt expands and cracks open instantly
- Rain causes brake discs to weld to the brake pads
Answer: B — Rainwater mixes with accumulated engine oil, grease, rubber dust, and desert dirt on the asphalt, creating a slick soapy emulsion before washing clean
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