Top 50+ Solved Optical, Pressure and Temperature Sensors MCQ Questions Answer
Q. Signal conditioning is carried out in ______________
a. Transducer housing
b. Processor
c. Network interface
d. None of the mentioned
Q. Output of smart sensors will of ________________
a. Analog
b. Digital
c. Analog and digital
d. None of the mentioned
Q. Which of the following defines smartness of sensor?
a. Quality of data
b. Circuit size
c. Circuit components
d. All of the mentioned
Q. Input data of smart sensor will be _____________
a. Analog
b. Digital
c. Analog and digital
d. None of the mentioned
Q. LDR’s are also called _______________
a. Photo voltaic cell
b. Photo resistive cell
c. Photo emissive cell
d. All of the mentioned
Q. Which of the following is not correct for fibre optic sensors?
a. Immune to electro magnetic interference
b. Immune to radiation hazard
c. Can be used in harsh environments
d. None of the mentioned
Q. Epoxy material in fibre optics is intended for ________________
a. Better optical properties
b. Better reflection
c. Better sealing
d. Reducing noise
Q. Optical fiber sensors are electrically ____________
a. active
b. passive
c. active as well as passive
d. cannot be determined
Q. Optical fibers are not immune to ________
a. electronic disturbances
b. magnetic disturbances
c. ambient light interference
d. electromagnetic disturbances
Q. In which of the following optic fiber sensor the fiber is simply used to carry lightto and from an external optical device where the sensing takes place?
a. extrinsic fiber optic sensor
b. energized fiber optic sensor
c. all fibers are used to simply carry light to and from the external optical devices
d. intrinsic fiber optic sensor
Q. Other name for tactile sensor is______________
a. Pressure sensor
b. Humidity sensor
c. Touch sensor
d. Temperature sensor
Q. Which sensor is used in mobile phones?
a. Capacitive touch sensor
b. Temperature sensor
c. Humidity sensor
d. Weight sensor
Q. The nano particles from iron and palladium are used to produce ________
a. Magnets
b. Magnetic lens
c. Magneto meters
d. Magnetic storage devices
Q. Nano particles target the rare _______ causing cells and remove them fromblood.
a. Tumour
b. Fever
c. Infection
d. Cold
Q. ___________ is the field in which the nano particles are used with silica coatediron oxide iron oxide.
a. Magnetic applications
b. Electronics
c. Medical diagnosis
d. Structural and mechanical materials