Top 150+ Solved Sensors and Transducers MCQ Questions Answer
Q. Today, almost all electronic weighing scales use ________ for the measurementof weight
a. Load cell
b. Strain gauge
c. Magentoresistance
d. Gyroscope
Q. To obtain the GMR effect, the spacer layers must be ____________
a. Thick
b. Thin
c. Both a) and b)
d. None of the above
Q. __________ load cells dominate the weighing industry.
a. Hydraulic
b. Pneumatic
c. Capacitance
d. Strain gauge
Q. In Hall Effect sensor, an electric current is _______ to the direction of themagnetic flux.
a. Parallel
b. Perpendicular
c. 180 degree phase shift
d. None of the above
Q. ______ Gyroscope was applied extensively in aircraft navigation.
a. Mechanical
b. MEMS
c. Ring laser
d. Fiber optic gyroscope
Q. When the magnetic layers are aligned in the opposing direction, then electronsoriginating in one layer are __________ from the adjacent layer
a. Freely
b. Blocked
c. rest on
d. All the above
Q. The Hall Effect is possessed by ________
a. Metals
b. Insulator
c. Semiconductor
d. both metals and semiconductor
Q. The operating principle of all mechanical gyroscopes is based on the ________
a. Ohm law
b. conservation of angular momentum
c. Faradays law
d. Tesla principle
Q. Sensors are used to detect the presence of any object without the need for anyphysical contact _ _ _ _ _ _
a. Motion sensor
b. Heading sensor
c. Proximity sensor
d. Temperature sensor
Q. Identify which type of material will have high resolution?
a. Carbon composition
b. Wirewound
c. Conductive plastic
d. Thermal composition
Q. _ _ _ _ _ Jockey /wiper materials used in potentiometric sensors
a. Chromium
b. Nickel
c. Platinum
d. Copper
Q. _ _ _ _ _ _ _ is a standard for short-range radio communications, originallydeveloped as a cable replacement to connect portable devices
a. Radio beacon
b. Bluetooth
c. GPS
d. All the above
Q. GPS satellite orbiting the earth at an altitude of about _ _ _ _ _ above the surfaceof earth.
a. 19,200 Km
b. 20,200 Km
c. 21,200 Km
d. 22,200 Km