AUT-208 Pre/Post Test

The throttle position sensor is what type of sensor?

• Thermistor

• Rheostat

• Stupid

• Potentiometer

A thermistor is used to measure what?

• Air pressure

• Temperature

• Barometric pressure

• Oil pressure

A speed density system uses what type of sensor?

• Intake air temperature

• Throttle position

• Manifold absolute pressure

• Weight sensor

A crankshaft position sensor does what?

• Monitor engine RPM

• Senses cylinder number one

• Monitors engine misfires by telling the PCM crank speed up and slow down

• All of the above

What is the voltage used by the PCM to monitor sensor feedback called?

• Pretty high voltage

• PCM input voltage

• Signal feedback voltage

• VREF

The APP has what function?

• Sense driver demand

• Sense vehicle speed

• Measure driver's weight and general health

• Input transmission gear ratio

How do negative temperature coefficient sensors operate?

• As temperature goes up the resistance goes down

• As temperature goes up the resistance goes up

• As temperature goes up the voltage increases to 12 volts

• The cannot operate, they are not surgeons

What does PTC stand for?

• Positive temperature coefficient

• Pretty tense class

• Positive temperature climate

• Potentiometer time class

An air/fuel ratio O2 or LTFT oxygen sensor operates at which voltages?

• 0 to 1 volt

• 9 to 12 volts

• 0 to 5 volts

• 1 to 2.5 volts

What is the word for the ideal air/fuel ratio and what is the ideal ratio?

• Barometric ratio- 16.1 to 1

• Stoichiometric- 14.7 to 1

• Air/fuel redundancy- 14.7 to 1

• Premium air/fuel- 22.9 to 1