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ASVAB · General

What does the cooling system (radiator and coolant) do in a vehicle?

Correct answer

Removes excess heat from the engine to prevent overheating

  1. A Lubricates the engine
  2. B Removes excess heat from the engine to prevent overheating
  3. C Generates electricity
  4. D Provides fuel to the engine

Why this is the answer

The COOLING SYSTEM removes excess HEAT from the engine to prevent OVERHEATING. ASVAB Auto Information tests the cooling system. COOLANT (antifreeze mixed with water) circulates through the engine, absorbing heat, then flows to the RADIATOR where airflow cools it; the WATER PUMP circulates the coolant, and the THERMOSTAT regulates temperature. Overheating can cause severe engine damage. Knowing the cooling system's job (removing heat to prevent overheating) and its main components (radiator, coolant, water pump, thermostat) is commonly tested.
Source: ASVAB Auto Information — Cooling System

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