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WorksheetsKOE034: Sensors and Instruments
Total questions: 11
Worksheet time: 11mins
Sensor is a type of transducer.
True
False
A semiconductor can act as ___________________
Insulator
Semi conductor
Pure conductor
All of the mentioned
Which of the following is not a conductive paste?
Copper
Carbon particles
Silver particles
None of the mentioned
Every hot body emits IR radiation.
True
False
Energy of emitted radiation from a body increases with ______________
Increase in temperature
Decrease in temperature
No relation with temperature
Net energy cannot be changed
Which of the following is correct for proximity sensors?
Inductive type
Capacitive type
Ultrasonic wave type
All of the mentioned
Following is (are) true for Hall Effect sensors.
They can operate as switches of high frequency
Potential develops in the current carrying conductor
Magnetic lines of forces are at 90o to the current carrying conductor
All of the above
Following acts as detector in Optical sensor
Light emitting diode
Photo diode
Transistor
All of the above
Inductive proximity sensors can be effective only when the objects are of _____ materials.
Ferro magnetic
non metals
plastics
All of the above
Following type of sensors are used to generate information in object grasping and obstacle avoidance.
Hall Effect sensor
Proximity sensor
Light sensor
Optical sensors
A piezo-electrical crystal generates voltage when subjected to ____ force.
Electrical
Mechanical
Gravity
All of the above
