Joy of Electronics Quiz

A sound sensor converts sound levels to _______ output.

• Sound

• Voltage

• Current

• Power

The resistance of a thermistor __________ with an increase in temperature.

• Decreases

• Increases

• Remains constant

• Fluctuates

Which ______ sensors resistance value varies with respect to light intensity?

• LDR

• Photosensitive

• pH sensor

• Temperature

The pH sensor is used to measure the acidity or alkalinity of a solution based on changes in _______.

• Temperature

• Pressure

• Light intensity

• Hydrogen ion concentration

The piezoelectric effect is the basis for the operation of ________.

• Pressure transducers

• Strain gauges

• Accelerometers

• Load cells

Infrared sensors detect temperature by measuring _______.

• Voltage difference

• Pressure changes

• Infrared radiation

• Sound waves

Which of the following is a type of level sensor?

• pH sensor

• Ultrasonic sensor

• RTD

• Accelerometers

LDR sensor is made up of _______ material.

• Conductors

• Insulators

• Semiconductor

• Tin

Accelerometer is the measurement of ________.

• Velocity/Time

• Energy/Time

• Height/Time

• Angle/Time

_____ sensors detect a quantity of light striking the sensor component.

• Light sensor

• Beam sensor

• Velocity sensor

• Speed sensor