Engine Sensors Quiz (Level 3)

How does an inductive sensor generate a signal?

• Through a change in resistance

• By altering capacitance

• Through electromagnetic induction

• By reflecting light

What type of waveform is typically produced by an inductive sensor?

• Square wave

• Sine wave

• Sawtooth wave

• Pulse width modulation (PWM) wave

How can an inductive sensor be tested with a multimeter?

• Measure resistance across its terminals

• Test for voltage output with power applied

• Check for continuity only

• None of the above

What could cause a weak signal in an inductive sensor?

• Excessive distance between the sensor and the trigger wheel

• Low supply voltage

• Excessive heat

• High fuel pressure

What characteristic distinguishes an active sensor from a passive one?

• Active sensors generate their own power

• Active sensors require an external power source

• Active sensors have moving parts

• Active sensors are only used in engine management systems

Which type of waveform is produced by most active sensors?

• Sine wave

• Square wave

• Triangular wave

• Sawtooth wave

How can you test an active sensor using a multimeter?

• Check for voltage with the engine off

• Measure signal output while the sensor is connected

• Measure resistance

• Check for polarity

What principle does a Hall effect sensor operate on?

• Change in capacitance

• Electromagnetic induction

• Effect of magnetic field on voltage

• Thermal conductivity

What type of waveform is generated by a Hall effect sensor?

• Square wave

• Sine wave

• Sawtooth wave

• Triangular wave

What is the correct method to test a Hall effect sensor?

• Check resistance between terminals

• Measure output voltage in response to a magnetic field

• Apply direct current

• Check for changes in capacitance