Cooling System Technology | Baamboozle - Baamboozle

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Vehicle Cooling

Study Slideshow

Which of the following is not a true statement about the functions of an engine cooling system?

It maintains a proper engine operating temperature.

It removes engine heat.

It keeps the engine from reaching operating temperature too

It provides a means of warming the passenger compartment.

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The temperature of the combustion flames can reach ____°F.

3900

4500

2600

3200

15

Typical radiator cap pressure in an automotive cooling system is ____ psi.

18–20

20–26

12–16

7–10

15

The correct coolant/antifreeze mixture for use in most vehicles is ____.

pure ethylene glycol

pure water

50% antifreeze/50% water

25% antifreeze/75% water

15

When a thermostat is closed, which of these permits coolant circulation through the engine?

Both of the above.

None of the above.

Bypass valve.

Bypass thermostat.

15

Some cooling systems can use plain water instead of antifreeze.

False

15

One of the functions of antifreeze is to lubricate the water pump.

True

15

Liquid cooling systems are the most common for passenger cars.

True

15

A block heater is often used on diesel engines to aid winter starting.

True

15

The radiator's primary function is to store engine heat.

False

15

Air cooling systems circulate fresh air through internal engine passages to carry away engine heat.

False

15

Open cooling systems are no longer used on vehicles.

True

15

The worm drive hose clamp is seldom used in cooling systems.

False

15

High thermostat heat ranges are used in modern vehicles to reduce exhaust emissions.

True

15

A flex fan alters airflow in response to engine speed.

True

15

Large cooling ______________________________ on the cylinder are an essential feature of air cooling systems.

fins

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