Exam 20: Cooling System Theory

While discussing thermostats, Technician A says that the installation of a lower temperature rating thermostat will result in a cooler running engine. Technician B says that it will simply result in the engine operating temperature being lower during cooler weather. Who is correct?

The MOST-Likely indicator of a slow rise in temperature or a fast rise due to a stuck-closed thermostat is the:

There is a passage (either a hose or a designed-in passage) that allows the coolant to circulate when the coolant is cold and the thermostat is closed. This is called a(n) ____________________.

All of the following statements are true EXCEPT:

If a car has a(n) ____ fuel system, that system will not operate until its sensors have all reached a predetermined operating temperature.