HCL Quiz

A device that senses a physical parameter and converts it into a corresponding electric signal is called as

• Signal Conditioning Device

• Sensor

• Actuator

• Solenoid

A sensor that produces continuous output is called as

• active sensor

• passive sensor

• digital sensor

• analog sensor

A sensor that requires an external power source to work is called as

• active sensor

• passive sensor

• analog sensor

• digital sensor

Example of passive sensor is

• Thermocouple

• Potentiometer

• LVDT

• Strain gauge

Which among the following is used to measure force?

• LVDT

• Load cell

• Ultrasonic sensor

• IR Sensor

Which among the following is a proximity sensor?

• Thermocouple

• Hall Effect Sensor

• LDR

• Thermistor

___________ of the sensor is the difference between the maximum and minimum input values.

• Accuracy

• Span

• Range

• Precision

True value = 40 kg. The sensor readings are 24 kg, 24.1kg, 23.9 kg. The sensor is said to be ____

• Accurate

• Precise

• Both accurate and precise

• Neither accurate nor precise

The ability of the sensor to maintain the same output for the same value of the input over a period of time is 

• impedance

• stability

• response time

• dead band

If you want to measure the light intensity, which among the following will you choose? 

• Photoresistor

• LVDT

• Ultrasonic sensor

• Eddy Current Sensor