AAT 120 Elec Components

A variable resistor can be found in a blower motor circuit.

• True

• False

A thermistor is usually a ________________ type on a vehicle.

• negative coefficient

• positive coefficient

• variable amperage

• photo sensor

An example of a rheostat is?

• Dimmer Switch

• Wiper motor

• Throttle position sensor

• All of the above

An example of a potentiometer is?

• Dimmer swtich

• Coolant temp sensor

• Throttle position sensor

• Wiper swtich

How many wires does a rheostat have?

• 1

• 2

• 3

• 4

How many wires does a potentiometer have?

• 4

• 3

• 2

• 1

If you are checking a temperature sensor and it reads 0.25 K ohms. How much is that equal to?

• 25 ohms

• 250 ohms

• 2,500 ohms

• 2,500,000 ohms

In a negative coefficient type of temperature sensor, what happens at temperature goes up?

• Resistance goes up

• Resistance goes down

• Voltage goes up

• Voltage goes down

Which of these is NOT a thermistor?

• Engine Coolant Temp

• Intake Air Temp

• Mass Air Flow

• Transmission Temp

All resistors are variable resistors in a vehicle.

• True

• False