Cooling System Exam Latest Update
Already Graded A +
A/C Condenser - ANSWER>>Is usually mounted in the front of the radiator
Air Cooling System - ANSWER>>The Cooling Fins increase the surface area of the metal around the
cylinder. This allows enough heat to transfer from the cylinder to the outside air.
Aluminum Melting Temp - ANSWER>>1220 F
Antifreeze - ANSWER>>ethylene glycol mixed with water to produce an engine coolant.I It prevents
winter freeze up, prevents rust and corrosion, lubricates the water pump, and cools the engine.
Closed cooling system - ANSWER>>Uses an expansion tank. Overflow tube is routed into reservoir tank
Cold Engine Operation Info - ANSWER>>The Thermostat is Closed, the coolant circulates inside engine,
the engine warms quickly
Cold System Operation - ANSWER>>When the engine is running, the water pump forces coolant to
circulate through the engine water jackets (internal passages in the engine).
A thermostat regulates engine temperature
Combustion Flame - ANSWER>>Temperatures can reach 4500 degrees F
Conventional Coolant Flow - ANSWER>>Most Common Coolant Flow Direction
Hot coolant flows from the cylinder head to the radiator
After being cooled in the radiator, the coolant flows back into the engine block
Already Graded A +
A/C Condenser - ANSWER>>Is usually mounted in the front of the radiator
Air Cooling System - ANSWER>>The Cooling Fins increase the surface area of the metal around the
cylinder. This allows enough heat to transfer from the cylinder to the outside air.
Aluminum Melting Temp - ANSWER>>1220 F
Antifreeze - ANSWER>>ethylene glycol mixed with water to produce an engine coolant.I It prevents
winter freeze up, prevents rust and corrosion, lubricates the water pump, and cools the engine.
Closed cooling system - ANSWER>>Uses an expansion tank. Overflow tube is routed into reservoir tank
Cold Engine Operation Info - ANSWER>>The Thermostat is Closed, the coolant circulates inside engine,
the engine warms quickly
Cold System Operation - ANSWER>>When the engine is running, the water pump forces coolant to
circulate through the engine water jackets (internal passages in the engine).
A thermostat regulates engine temperature
Combustion Flame - ANSWER>>Temperatures can reach 4500 degrees F
Conventional Coolant Flow - ANSWER>>Most Common Coolant Flow Direction
Hot coolant flows from the cylinder head to the radiator
After being cooled in the radiator, the coolant flows back into the engine block
