COOLING SYSTEMS

What is the operating pressure of the cooling system

• 0.9 bar

• 2.5 bar

• 3.0 bar

• 1.5 bar

At what temperature does the thermostat typical open at ?

• 85 Degrees Centigrade

• 100 Degrees Centigrade

• 75 Degrees Centigrade

• 110 Degrees Centigrade

How is a typical water pump operated ?

• Fan belt driven

• Cambelt driven

• Switch on the dashboard

• Thermostatic switch

what should the coolant / water be mixed at

• 70/30

• 80/20

• 60/40

• 50/50

why is the cooling system pressurized ?

• to lower the boiling point

• to heat the passenger compartment

• to raise the boiling point

• to cool the engine

What is this tool used for?

• Checking the specific gravity of coolant

• Checking the operation of the cooling fan

• Checking the operation of the thermostat

• Checking the condition of the radiator