Answer :
Technician A is correct. The liquid cooling an engine maintains a constant operating temperature. Technician B is wrong because the usage of air condition can increase fuel consumption by up to 20%.
Component of systems are a radiator to dissipate heat, a fan or fans to ensure adequate airflow for radiator cooling, a thermostat valve that opens when the desired operating temperature is reached and a water pump (or coolant pump) to circulate coolant through the engine, hoses and other elements. The engine cooling system has responsible for holding it at a stable temperature to avoid damage to the vehicle. There are two kind of cooling systems for engines:
- Air cooling system.
- Water cooling system.
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