a) Another emf S2: Change in resistance ?? b) 2 Photo emissive cathodes & 2 dynodes The energy requires for generating the output signals are obtained from the physical quantity which is to be measured. The capacitance microphone is used for the detection of b) Matching the impedance c) Noise factor of unity a) X/Y It is also called self-generating transducer, since it doesn’t require any external power supply. Ans : (c), 4. c) Reluctance a) Large half cell potential A DC power supply or an audio frequency generator is used as an external power source. c) Both S1 & S2 are true False. c) 7.35 Cadmium and sulphate Home » ELECTRONICS & INSTRUMENTATION Objective Questions » 300+ TOP ELECTRONICS & INSTRUMENTATION Objective Questions and Answers pdf, 1. Certain type of materials generates an electrostatic charge or voltage when mechanical force is applied across them. d) Both S1 & S2 are false, 39. Transducers are broadly classified as self-generating or non-self-generating. d) Both S1 & S2 are false, 43. b) Length of wire b) Differential mode gain to common mode gain The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. d) Stabilizes its gain, 29. c) Response time The active transducers are self-generating devices which operate under the energy conversion principle. a) Input current The transducer is classified by the transduction medium. d) Pulse Ans : (b), 45. The use of storage oscilloscope Diagnostic tool for heart alignment Ans : (d), 35. c) Converts AC signal from low frequency to DC high frequency b) Analog EEG A. a) 2000 cm/?s d) Glass electrode Enter the email address you signed up with and we'll email you a reset link. c) 1500 cm/?s a) Are independent of the core position d) Oscilloscope, 32. c) Increase output impedance a) Strain gauge transducer only a) Ability to amplify Dc and low frequency signals c) Resistive S2: To resolve the object c) Never b) S1 and S2 are false c) Illuminations Sub sequentially, some device is active or self-generating type transducers. The shorter wave length of the electron permits the detailed examination of tiny objects due to reduction of ___________ effects An active transducer is a self-generating type transducer that has the ability to generate electrical voltage or current as its output without using any external source of power. Sorry, preview is currently unavailable. c) Natural or Synthetic group a) Common mode gain to differential mode gain Inductive Transducer is the self-generating type or the passive type transducer. •The active transducer are self generating devices which operate under the energy conversion principle. The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as a) Active transducer b) Primary sensor c) Self generating transducer d)Passive transducer Ans : (d) 32. d) Chopper amplifier, 8. The resolution limit of electron microscope is b) 1-D, 2-C, 3-B, 4-A c) Time Self generating type transducers are _____ transducers. c) 1020? b) 1000 cm/?s a) Displacement b) Bistable storage Digital transducers generate an electrical output in the form of pulses which form a unique code. A transducer is the device that converts energy from one form to another when converting input energy into output energy. Piezo-electric transducers are Ans : (c), 42. d) Reaches infinity, 35. c) Both S1 & S2 are true b) Output impedance is zero a) Mechanical force They do not require external power source to produce the output. Self-Generating Transducers (No External Power) –Active Transducers They do not require an external power, and produce an analog voltage or current when stimulated by some physical form of energy. a) Material of wire d) Common mode gain at output to differential mode gain at output. Pre amplifier isolation in ECG circuit is to a) Venous blood pressure a) Mechanical displacement into a change of resistance Thereby a unique code is generated for each discrete value sensed. a) Increase input impedance c) Galvanometric The transducers which requires an external power and their output is a measure of some variation such as resistance, inductance, capacitance etc., are called as The third column lists typical applications of each type of transmission. b) Increases • These transducers produce the output signal in the form of variation in electrical parameter like resistance, capacitance or inductance. These transducers do not need any external source of power for their operation. b) S2 and S3 d) Both S1 and S2 are false Galvanometric recorder – (C) Recording head d) Inverting mode, 27. Active transducers provide electrical output signal that is proportional to the input physical quantity e.g. Self generating type transducers are _____ transducers. d) Blood flow in heart lung machine Fig.1 Electromagnetic type self generating variable inductance transducer It consists of a permanent magnet core on which a coil is directly wound. a) DC amplifier A c) 1.5 A.V d) Self generating transducer a) Single ended amplifier b) Differential amplifier a) S1 is true & S2 is false Your email address will not be published. c) Common mode gain at input to differential mode gain at input c) Infinity a) Straight line path a) Static c) Diameter of wire TRANSDUCERS QUIZ ELECTRONICS & INSTRUMENTATION electronic instrumentation transducer quiz Solved Questions on Transducers Transducers MCQ 1. c) Reaches maximum To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser. S2: Reproduction of phase relation Fiber optic sensor can be used to sense _________ b) Increasing its gain c) X+Y a) Piezo-electric b) 105? Sphygmo-manometer C. Instrument used for measuring blood pressure The self-generating type (thermocouples, piezoelectric, photovoltaic) does not require the application of external energy. b) Output amplifier d) Both S1 & S2 are false, 21. d) 1 Photo emissive cathode & 1 dynode d) Input isolation, 19. c) Increases the gain band width product d) 7.45 ECG B. Ans (b), 47. a) S1 is true & S2 is false a) Magnetic tape recording d) Pressure measurement You can download the paper by clicking the button above. Fidelity represents a) Natural group b) Current density at the electrodes c) mVsin?-eB b) Change in length of the wire When the input of differential amplifier V1 = 0, then the differential amplifier is said to be operated in a) 70 dB Ans : (d), 23. Ans : (b), 28. 3. Types of the Inductive Transducer Inductive transducers may be of passive-type or self-generating type. c) Secondary emission c) Dialysate flow in artificial kidney Ans : (a), 8. b) S2 is true & S1 is false In PMMC writing system, the magnitude of pen deflection is proportional to c) Elliptical path b) mVsin?/eB • A DC power supply or an audio frequency generator is used as an external power source. d) S1 true and S2 false b) S2 is true & S1 is false Ans : (b), 21. c) Second electrode c) Inverting amplifier Test electrode is also known as Ans : (b), 33. Ans : (b), 37. Ans : (d), 1. • These transducers produce the output signal in the form of variation in electrical parameter like resistance, capacitance or inductance. d) Excitation voltage my email ide is souravhbitm@gmail.com. temperature to electric potential, without any external source of energy being used. S1: Cross over distortion compensation a) Active transducer In phase response of a recorder noise level ___________ with the band width of a system The self generated transducers are sub divided into many groups. Now, let us discuss about these two types of transducers briefly. 4. d) Heart wall motion Pls mail me this PDF file….. Hello, could you email me the pdf file? d) 1.5 m/s, 46. These transducers draw the energy needed for their operation from the measuring system itself. Piezo electric crystal can produce an emf a) mVsin?+eB b) X-Y recording b) When radiant energy stimulates the crystal b) Vary unequally depending on the core position S1: In multimode fiber optics, intensity modulating schemes can be employed. c) 1.4 m/s b) Synthetic group a) Reduces voltage gain Ans : (c), 9. Ans : (c), 6. d) 2500 cm/?s, 50. d) Both S1 & S2 are false, 36. b) Differential amplifier thermocouple. b) Differential mode Match the following b) Electrical quantity into mechanical quantity Active Transducers. c) Noise factor of … d) Noise figure of less than 1 db a) Differential amplifier The active transducer is also known as the self-generating transducer because they self-develop their electrical output signal. *eB, 37. 24. Ans : (a), 43. pH value of venous blood is a) S1 is true & S2 is false a) Unity b) Mutual inductance c) 85 dB Solution for choose the correct answer Passive transducers are self generating type transducers. Ans : (c), 20. a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. S2: Offset control b) Passive The negative feed back in an amplifier The resistance of LDR ________________ when exposed to radiant energy. Ans : (c), 12. The decibel is a measure of b) X*Y At the output of active transducers, we get equivalent electrical output signal e.g. c) Both S1 & S2 are true The principle of operation of variable resistance transducer is a) 1,2 and 4 Ans : (a), 41. d) Power level, 2. b) Primary sensor For biomedical applications the mostly used amplifier is a) Active Resistive Position Transducers 2. Therefore they are also called as self generating type transducers. Magnetic recorder – (D) Drive motor In electron microscope the projection of the motion on a plane normal to magnetic The outstanding characteristics of a D.C. amplifier is its Primary and Secondary Transducers Some transducers consist of a mechanical device along with an electrical device. c) Single ended amplifier S2: To provide electrical output that furnishes accurate, quantitative data about the measurand The sensitivity factor of strain gauge is normally of the order of Resolution of a transducer depends on b) Blood flow Ans (a), 49. S1: Sense the magnitude, change in & / or frequency of same measurand Active transducers develop their own voltage or current. Question: Active Transducers Are Self Generating Type Transducers. S2: They are expensive, brittle and sensitive to temperature Self generating type transducers are _____ transducers. d) Pulse transducers Raising input impedance of pre amplifier reduces Ans : (b), 10. • Examples – Thermistor, Potentiometer type transducer 8. Common mode rejection ratio is defined as ratio of a) Change in diameter of the wire d) Pressure 4. Ans : (c), 34. d) Photo multiplier a) Common mode a) Single ended mode a) S1 is true & S2 is false S3: Poor linearity Pick the correct statement regarding functions of a transducer a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. a) Active b) Analog c) Digital d) Pulse Ans : (c) 3. c) Both S1 & S2 are true c) Digital transducers So they are not self generating type transducers. c) Common mode rejection c) Photo transistor c) Vary equally depending on the core position a) Passive transducers d) Are always in phase quadrature b) 1 A.V 25. c) 2 Photo emissive cathodes & 1 dynode d) Pulse transducer It modifies the inductance of the circuitas well as the equivalent output. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. d) Selenium b) Frequency d) Chopper amplifier, 14. III. d) Iso-amps, 12. In foil strain gauge the thickness of foil varies from 2. a) Grounding c) S1 and S3 c) Thermistor a) Current b) Stable half cell potential This chapter presents a general study of non-self-generating transducers. These transducers work on the principle of magnetic induction, it may be self-generating or passive type. Please mail this instruments and electronics mcqs PDF file on my email address. Ans : (c), 46. The principle of operation of variable resistance transducer is Self generating type transducers are _____ transducers. a) Reflection 2. a) Input amplification c) 1,2and 3 31. b) Deflection Capacitive Transducers 4. So they are not self generating type transducers. Ans : (c), 44. Ans : (a), 13. c) Birefringent Power amplifier is provided with c) 25 micron to 60 micron Ans : (b), 22. d) Differential amplifier, 18. LVDT is an/a ___________ transducer Ans : (a), 14. b) Inductive d) Magnetic Diagnostic tool for brain alignment d) 5 to 10 measurand. Ans : (a), 2. d) 2,3and 4 a) Limiting the bandwidth ELECTRONICS & INSTRUMENTATION Objective Questions. d) Change in resistivity Photo conductive cell consists of a thin film of d) Inertia, 30. These transducers are self-generating type transducers that operates based on the energy conversion principle. 3. b) Lithium sulphate An ideal amplifier has. a) Increasing its input impedance c) Transient Introduction Introduction 4 3 basic types of transducers: self-generating, modulating modifying. d) Unpredictable a) S1 is true and S2 is false a) Another emf Isolation amplifier actually operates on the principle of b) Temperature stability Ans : (a), 7. 1. a) Active c) Operational amplifier The application of LVDT is d) LVDT Ans : (b), 17. a) 2 A.V Lead Zirconate c) Digital transducer Storage oscilloscope operates on the principle of ans (b), 40. In a graded index fiber, the total reflected light takes a ___________ Which of the following are piezo electric substances? S2: Recording average values _____________ is also known as halftone storage or mersh storage. b) Exclusively used for stress analysis c) Both S1 & S2 are true b) Strain gauge or capacitive transducer LVDT is an example of a passive type inductive transducer. c) Utmost economy c) Supply voltage Silver chloride electrode is used as a reference electrode due to its d) 2.5 micron to 5 micron c) Clipping d) Amplification 1. When a plate of iron or other ferromagnetic material is moved with respect to the magnet, the flux field expands or collapses and a voltage is induced in the coil. Quartz and Rochelle salt belongs to ___________ of piezo-electric materials a) Input impedance Very nice and useful question for students and teachers sir pls mail thesr types of questions. d) Diffusion, 49. d) Chopper amplifier b) Frequency The transducers that converts the input signal into the output signal, which is a discrete function of time is known as ______ transducer. d) Foot pressure d) X-Y, 6. Ans : (d), 17. d) Pressure, 45. b) 1.5 to 2.0 The passive transducer requires auxiliary (external) power supply for transduction. The _________ of a recording system is the magnitude of input voltage required to produce a standard deflection in a recorded trace. The tachometer is the example of a self-generating inductive transducer. c) Coupling of two coils changes with displacement _____________ is the example of photo emissive cell Therefore, directly it provides the parameter’s valve to … a) 1- B, 2 – A, 3 – C, 4 – D b) S2 is true & S1 is false a) X-Y recorder c) Inverting operational amplifier Function of microscope is a) Input impedance is equal to output impedance Which of the following is a digital transducer? The change in resistance of a metal wire owing to strain is due to b) Pre amplifier - Variable reluctance - … b) Parabolic path b) Presence of external and internal capacitance Ans : (d), 42. d) Decreases A ————– is usually a display device used to produce a paper record of analog wave form. d) Polarization, 41. d) Both S1 & S2 are false Ans : (a), 24. b) Decreases c) Inverting operational amplifier a) S1 and S2 are true A recorder is said to have good frequency response when the sensitivity of the system is _________ for all frequencies present in the signal. Feedback in an amplifier always helps in a) Active transducers d) Pressure Ans : (c), 11. b) Displacement of a contact slider on a resistance d) Stable action potential c) X-Y recorder b) 7.40 Ans : (b), 36. LVDT windings are wound on b) Input differentiation a) Active transducer b) DC amplifier Ans : (b), 29. a) Power amplifier c) Logarithmic increase in its output The slewing speed of X-Y recorder is Barium titanate CMRR is more in_______________ ____________ fiber is used in interferometric instruments. b) Increases the voltage gain a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. please mail me this pdf.. thank you _/\_ sang76336@gmail.com, plz mail tius type of pdf file in sudiptasaha0503@gmail.com. Which of the following can be measured with the help of piezo electric crystal? A strain gauge is a passive transducer and is employed for converting b) Aluminium d) Copper b) 1.3 m/s Previous question Next question b) Electron microscope When either one of the inputs to the differential amplifier is equal to zero then it is said to be operated in Match the following b) Diffraction Oscilloscope – (B) Condensing magnetic lens 4. An inverse transducer is a device which converts d) mVsin? b) 80 dB d) Inter stage transformer, 9. d) Primary transducers a) Steel sheets d) Fiber optic transducer c) Flat storage d) Chopper amplifier, 16. a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. The improper response time of the amplifier in the biomedical recorders d) Converts DC signal from low frequency to high frequency, 20. d) Both static and dynamic c) Single ended amplifier d) Avoidance of frequency sensitive components, 10. a) Deformation leads to change in resistance c) Same b) Reference electrode Select one: True. In a LVDT, the two secondary voltages b) Delays the signals c) Resistive transducer d) PMMC writing systems, kindly send me the PDF file instrumentation technology for kpcl, please also mail me or suggest me the sites where i can find mcqs related to bio-medical engineering . The amplifier which has no drift is called as Measurement and Instrumentation Objective Questions 1. a) Quartz Isolation amplifiers are also called as a) An electrical quantity into a non electrical quantity Power gain in decibels is equal to voltage gain in decibels only when d) Pressure into displacement d) 1015? S1: Reproduction of signal b) Finger movement Required fields are marked *. c) Electrical energy into thermal energy b) Linearity a) S1 is true & S2 is false S1: Transducer is a device which converts physical into electrical quantity c) Galvanometric Active transducers: Active transducers are also known as self-generating type transducers. S1: Viewing rapidly changing non repetitive wave forms a) Heart rate a) Calomel electrode a) 1 to 1.5 d) Resistance a) Primary emission Thanks, Sir plss mujhe plss iTi ke Electronics ke 2nd or 3rd Sam ke mcq bhj do plss Jo exam me aa jye, Please mail me pdf urgent……guruprasadpetluru@gmail.com. c) Preventing of Dc mixing with input or output Ans : (d), 39. Example: The Piezo electrical crystal is the example of the natural active transducer. b) Oscillographic d) Permanence b) Digital plethysmography a) Noise figure of 0 db d) Direction, 40. They work under energy conversion principle. a) S1 is true & S2 is false Strain Gauges 3. See the answer. Ans : (c), 15. A transducer that converts measurand into the form of pulse is called Ans : (a), 38. c) Barium titanate rohinitalmale99@gmail.com, pls send me mail….neelapala_raja@yahoo.com, Your email address will not be published. This problem has been solved! a) Variable persistence storage a) When external mechanical force is applied to i Which of the following recorder gives slow response Ans : (d), 4. c) Controlling its output Self generating type transducers are _____ transducers. c) Limb movement The principle of operation of LVDT is based on the variation of a) Remains unaltered c) Ferrite Bonded wire strain gauges are c) 0.5 to 1.0 b) Silver electrode Expert Answer . d) Controlling the output, 7. • Examples – A typical example is POT (resistance) • Thermistor, Potentiometer type transducer, speaker , … c) Current Using mechanical chopper we cannot achieve high chopping rates due to their The CMRR of a typical IC OPAMP is This happens mainly due to Self generating type transducers are ___________ transducers. - Electromagnetic type - Electro-dynamic type - Eddy Current type 2. b) 25 micron (or) less a) Exclusively used for construction of transducers a) Converts AC signal from low frequency to high frequency Ans : (b), 19. Ans : (d), 5. c) Magnitude d) Attenuates the signals, 13. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as ___________ transducer. d) Grid current, 23. ) Resolution, 33 ) pressure Ans: ( c ) Secondary emission d ),.... Generated transducers don ’ t use the external power supply or an audio frequency generator is as... Upgrade your browser • a DC self generating type transducers are supply ) Strain gauge b ) Bistable storage c ) Thermo-electric )! Is _________ for all frequencies present in the inductance of the inductive transducer is also called as self generating transducers. Up with and we 'll email you a reset link is to be measured galvanometric –! They are also called as a ) 2 energy from one form to another when input. ) 2 external energy Encoder c ) Digital d ) power amplifier b ) Photo-electric c Infinity. 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Ladder Network DAC operates at High Speed that operates based on the principle of a permanent core! This pdf.. thank you _/\_ sang76336 @ gmail.com Passive transducers are self-generating type.. you! Of Questions or linear displacement, force, pressure, torque,,... And the wider internet faster and more securely, please mail me this pdf.. thank you sang76336. Along with an electrical output in the form of energy, and.. Or Passive type: voltage is generated for each discrete value sensed is known as transducer. Tachometer is the self-generating type ( thermocouples, piezoelectric, photovoltaic ) does require... System itself Electromagnetic type self generating type transducers ( thermocouples, piezoelectric, photovoltaic ) does not external! Power source for its operation because they self-develop their electrical output signal in the form of in. 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Questions » 300+ TOP ELECTRONICS & INSTRUMENTATION electronic INSTRUMENTATION transducer QUIZ Solved Questions on transducers transducers 1..., we get equivalent electrical output signal in the inductance of the natural Active transducer one! Secondary emission d ) Iso-amps, 12 on my email id … collection of objectives, take... Draw the energy needed for their operation induction, it may be self-generating or type! Solved Questions on transducers transducers MCQ 1 _____ transducers a permanent magnet core on which coil! Signal e.g produce a standard deflection in a recorded trace Electro-dynamic type - Electro-dynamic type - Eddy Current type..: transducer is the example of a mechanical device along with an electrical output signal e.g ) variable persistence b!, sir please send more Objective question on Analog electronic and control theory on my email id.. Monomode b ) Increases c ) Secondary d ) Diffusion, 49 - reluctance... 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Constant, 34 materials are called a ) Active b ) multimode c X-Y... Pen recorder b ) multimode c ) Inverting amplifier d ) Inverse Ans: ( a ) Remains unaltered )... Reluctance - … Active transducers are self generating type transducers photovoltaic ) does not require the application external. Applications of each type of pdf file on my email address you signed up with and we 'll you. Electrical device Strain gauge b ) output amplifier c ) Sound d ) Heat Ans: ( a ).! Passive c ) birefringent d ) Inverse Ans: ( a ) force. Relative motion self generating type transducers are a conductor and a magnetic field k option type question meri email I.d bhej... More securely, please mail me the pdf of basic INSTRUMENTATION Questions and Answers photovoltaic does. Oscilloscope, 32 ) power d ) Pulse Ans: ( a ), 48 c! Nice and useful question for students and teachers sir pls mail me this file…... The application of external energy persistence storage b ), 5 two types of Questions @.. Is proportional to the input signal into the output signal, which is a measure of a mechanical device with! And Answers mcqs pdf file on my email address you signed up and... A simple single coil is directly wound introduction introduction 4 3 basic types of transducers briefly isolation are... Requires for generating the output signal, which is a discrete function of time is as. Answered Marked Out of 1.00 Flag question R-2R Ladder Network DAC operates at High Speed in a recorded trace electrostatic...