Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". c) does not reaches peak current Each NTC thermistor composition or mix, has a specific ratio of metal oxides which defines the thermistor’s physical dimensions, R/T curve and its resistance at 25°C. Thermistor is more sensitive than platinum resistance thermometer The resistance of thermistor is solely a function of its absolute temperature whether the source of heat is external or internal Thermistor has linear temperature-resistance relationship E-Mail* D. FET. First off, they are much much cheaper than all the above! Quick Questions. Thermistors are classified into two types. 900 J kg-1 °C-1 C. 1350 J kg-1 °C-1 D. 1800 J kg-1 °C-1 MCQ 2: In a laboratory, bunsen burner is used to increase the temperature of lime from 10 °C to 50 °C with the thermal energy of 80000 J. a) Anderson’s bridge Choose from here the video type. Thermistor has c) sense small changes in temperature One Comment to “A thermistor has_____?” Fighter says: 02/12/2018 at 7:43 PM. Thermistor has a resistance of ________ Its temperature coefficient is A. Please choose the appropriate section so the question can be searched easily. C. Reverse- biased pin junction diode. Electrical signal into non electrical quantity ... Thermistor is a transducer. Variable inductance: transducer is a linear variable differential transformer Variable capacitance: transducer is a parallel plate capacitor with a variable gap Synchros and resolvers: used to measure angular displacement Advantages of LVDT: 30. Thermistors are available in two types: PTC (positive temperature coefficient) and NTC (negative temperature coefficient). Is this question is a poll? ... Thermistor. c) KCL The main electrical displacement transducers work on the principle of. This is the Multiple Choice Questions Part 9 of the Series in Industrial Electronics: Principles and Applications as one of the Electronics Engineering topic. cant find the answer or any suggestions in the notes! 450 J kg-1 °C-1 B. b) 50 ῼ to 10 kῼ Participate in the Sanfoundry Certification contest to get free Certificate of Merit. When an RV fridge starts to generate excess frost and turns the milk into popsicles, it is time to check the thermistor. The RTD’s non-linearities can be corrected through proper design of resistive bridge networks. True. Youtube d) Maxwell’s bridge Function of transducer is to convert A. b) cannot sense any change in temperature Facebook a question in a previous exam paper for college. Sanfoundry Global Education & Learning Series – Electrical Measurements. a) positive temperature coefficient Thermistor is a contraction _________ a) thermal resistor b) laser resistor c) electric resistor d) mechanical resistor 2. By asking your question, you agree to the, Thermistor MCQ – Thermistor Multiple Choice Questions with Answers, Which of the following is a practical application of thermistors, Which of the following is correct for thermistors, The temperature range of thermistor is when compared to RTD is, Thermistor can be considered as which type of Resistor. A small change in temperature causes a large change in resistance. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. Thermistor … Please type your E-Mail. Correct Answer. Add a Video to describe the problem better. 1) ... Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. b) False by . MCQ in Industrial Electronics Part 10 of the series as Electronics Engineering topic in ECE Board Exam. An Arduino sketch does not have the traditional main() function that's generally present in C programs. It is a/an . Tags Contains latest information on sensors as well. Measurement of Power & Related Parameters, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Electrical Measurements Questions and Answers – Resistance Temperature Detector, Next - Electrical Measurements Questions and Answers – Pressure Sensor, Electrical Measurements Questions and Answers – Resistance Temperature Detector, Electrical Measurements Questions and Answers – Pressure Sensor, Electrical & Electronics Engineering Questions and Answers, Electrical Engineering Questions and Answers, Linear Integrated Circuits Questions and Answers, Electrical Machines Questions and Answers, Electronic Devices and Circuits Questions and Answers, Design of Electrical Machines Questions and Answers, Basic Electrical Engineering Questions and Answers, Electrical Measurements Questions and Answers, Electrical Measurements Questions and Answers – Strain Gauge Measurement Technique, Electrical Measurements Questions and Answers – Advantages of Bridge Circuits, Electrical Measurements Questions and Answers – Electronic Multimeter, Electrical Measurements Questions and Answers – Measurement of Low Resistance, Electrical Measurements Questions and Answers – Digital Multimeter, Electrical Measurements Questions and Answers – Basic Electronic Voltmeter, Electrical Measurements Questions and Answers – Megger. We'll assume you're ok with this, but you can opt-out if you wish. View Answer. A pinoybix mcq, quiz and reviewers. 1. Vimeo b) under low pressure Commercially available thermistors have nominal values of 1K, 2K, 10K, 20K, 100K, etc. The temperature range of thermistor when compared to RTD is: The temperature range of the thermistor is smaller as compared to RTD. Since thermistors have a higher resistance than RTDs, the measur-ing current through them may be so low The typical size of a thermistor is 0.125mm to 1.5 mm. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. d) under low volume Save my name, email, and website in this browser for the next time I comment. Transducer - MCQs with answers Q1. MCQ Exam ON : Process Control and Instrumentation . thermistors. Thermistor is a contraction _________ d) 100 ῼ to 100 kῼ View Answer, 2. MCQs of Boolean Algebra Let's begin with some most important MCs of Boolean Algebra. a) under zero pressure A thermistor is a resistance thermometer. Necessary cookies are absolutely essential for the website to function properly. c) Hay’s bridge c) under high pressure According to Sears Parts Direct, it should be located under a small plastic cover. Answer/ Hint A thermistor is a solid state device and has larger sensitivity than does an RTD. Generally, thermistors are limited around 150 °C whereas RTDs can be employed for much higher temperatures. View Answer, 6. So the intermediate reading was done at ambient temperature, according to my AC thermostat it was around 26º (this one only gives integer numbers) . d) reaches peak current intermediately Please choose suitable Keywords Ex: question, poll. In this example you need to read the graph to find the data needed for the equation. Change in resistance is measured using a ________ At small values of voltage, a thermistor ________ Please choose an appropriate title for the question so it can be answered easily. This value indicates the resistance value at a temperature of 25 o C. d) have a positive temperature coefficient of resistance Multiple Choice Questions and Answers By Sasmita January 9, 2020 Multiple Choice Questions and Answers on Op-Amp ( Operational Amplifier ) In addition to reading the questions and answers on my site, I would suggest you to check the following, on amazon, as well: b) reaches peak current immediately All Rights Reserved. d) infinite temperature coefficient Define thermistor. Instrumentation and Measurement / Thermistor MCQ – Thermistor Multiple Choice Questions with Answers. This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. Sensitivity: The voltage drop across an RTD provides a much larger output than a thermocouple. The thermistor is a sensor whose resistance varies with temperature and it can be used to sense temperature. LDRs and Thermistors in Circuits. 3. A voltmeter is connected across the current path. NTC thermistors are small, rugged ceramic semiconductors manufactured from compositions of the oxides of metals, such as manganese, nickel, cobalt, copper, and/or iron. Join our social networks below and stay updated with latest contests, videos, internships and jobs! Thermistor: Example. A. positive temperature coefficient B. negative temperature coefficient C. zero temperature coefficient D. variable temperature coefficient . Discuss the significance of your result. 5. View Answer, 9. Locate the thermistor in the refrigerator section. Multiple choice questions on Thermistor with answers. 1. switching algebra is also called? This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. View Answer, 3. We also use third-party cookies that help us analyze and understand how you use this website. Dialymotion Join our social networks below and stay updated with latest contests, videos, internships and jobs! Username* c) electric resistor List different type of thermistors. To practice all areas of Digital Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. a) sense large changes in temperature These cookies will be stored in your browser only with your consent. Check the below NCERT MCQ Questions for Class 12 Physics Chapter 3 Current Electricity with Answers Pdf free download. 4. d) mechanical resistor A. Boolean algebra B. algebra C. … Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. Figure 1: Thermistor resistance changes with temperature. To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice Questions and Answers. This website uses cookies for improving your experience and for advertisement purposes. a) 250 ῼ to 500 kῼ From the figure you can see that thermistors have high sensitivity. Lost your password? Which of the following is correct for thermistors: Correct answer: 1. a) True A thermistor is a resistance-based temperature sensor and testing its accuracy is the first step toward determining whether the problem lies here, or elsewhere. Type the description thoroughly and in details. Thermistor follows which law for small variations ________ a) thermal resistor Resistance Thermometer. View Answer, 10. You also have the option to opt-out of these cookies. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. By asking your question, you agree to the Terms of Service and Privacy Policy .*. c) zero temperature coefficient Video ID A thermistor is a type of (A) Switch (B) Resistor (C) Battery (D) Power supply. Generally thermistors are fabricated from semiconductors. Top 10 MCQ Questions on Sensors, and practical applications of different types of sensors. The resistance of a PTC thermistor increases as the temperature increases. If you want to be doing a poll click here. Thermistor can be considered as which type of Resistor: The thermistor can be regarded as a resistance thermometer whose resistance is dependent on the temperature. Strain gauge is a b) laser resistor Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. View Answer, 8. These cookies do not store any personal information. We have provided Current Electricity Class 12 Physics MCQs Questions with Answers to help students understand the concept very well. a) True b) Wheatstone’s bridge Positive C. Zero D. None of these View Answer / Hide Answer. This category only includes cookies that ensures basic functionalities and security features of the website. The term thermistor is a combination of thermal and resistor. Get notified by email when someone answers this question. If the thermistor has been at a temperature of 20C for a long time and is suddenly exposed to a temperature of 100C, what will the sensed temperature be after a period equal to 5 time constants? A sensor is a device that takes input from the physical environment. Alongside this thermistors are used in industrial electronics. In contrast, the resistance of an NTC thermistor decreases as temperature increases, and this type seems to be the most commonly used thermistor. c) 1 ῼ to 1 kῼ Negative . 33. Please enter your email address. A semiconductor based temperature transducer has a temperature coefficient of -2500μV/ 0 C. This transducer is indeed a. Thermistors have ________ Thermistors (thermal resistors) change their resistance with temperature, the hotter it gets the lower the resistance. Variable resistance: transducer is a strain gauge. Basic Concepts (Electrical Fundamentals) MCQs With Explanatory Answers. Q4. Negative B. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Figure 2 shows the response of a NTC thermistor between -40°C and 60°C. Practice Test: Question Set - 07 1. Thermocouple. Question Title* d) Ohm’s law Categories Electrical MCQs Tags thermistor Leave a comment Post navigation. Thermistors ________ Sensors MCQ – Top 10 Multiple Choice Questions on Sensors, Tactile Sensor MCQ – Top 5 Multiple Choice Questions on Tactile Sensors, Which of the following is not an analog sensor, Synchronous Generator MCQ Part 1 – Alternator Multiple Choice Questions, Resistance of NTC thermistor increases with increasing temperature, Resistance of PTC thermistor decreases with increasing temperature. ANSWER: A. View Answer, 5. If the resistivity of the copper is 1.72E-8 Ωm, then the resistance of this cable will be: If the resistivity of the copper is 1.72E-8 Ωm, then the resistance of this cable will be: Question is ⇒ A thermistor has, Options are ⇒ (A) positive temperature coefficient, (B) negative temperature coefficient, (C) zero temperature coefficient, (D) variable temperature coefficient, (E) , Leave your comments or Download question paper. B. Forward-biased pin junction diode. Although platinum is expensive it can be drawn into fine wires or strips and we only require small amounts for manufacturing RTDs. Thermistor material is pressed ________ A. Thermistor. A thermistor has_____? b) False a) reaches peak current slowly © 2011-2020 Sanfoundry. A bare 5% thermistor is only 10 cents in bulk. A thermistor is similar to an RTD, but a semiconductor material is used instead of a metal. a) Charle’s law Thermistors are a type of semiconductor, meaning they have greater resistance than conducting materials, but lower resistance than insulating materials. A copper cable has a length of 450 m and a cross-sectional area of 4.0 mm 2. b) negative temperature coefficient Thermistors have some benefits over other kinds of temperature sensors such as analog output chips (LM35/TMP36 (https://adafru.it/aK2) ) or digital temperature sensor chips (DS18B20) or thermocouples (https://adafru.it/cl0). View Answer, 4. Video type Participate in the Sanfoundry Certification contest to get free Certificate of Merit. On: October 1, 2020 Posted in Instrumentation and Measurement Comments: 0 Views: 289 Thermistor MCQ – Thermistor Multiple Choice Questions with Answers Electric. View Answer, 7. Semiconductor based sensor. 1. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. The relationship between a thermistor’s temperature and its resistance is highly dependent upon the materials from which it’s … Three important characteristics of thermistors are: 1. the resistance – temperature characteristics, 2. the voltage – current characteristics, 3. the current – time characteristics. b) KVL Also note that the response of this thermistor is not linear. Thermistor has low resistance. A thermistor is a resistance thermometer whose resistance is dependent on the temperature. Which of the following is a practical application of thermistors: A thermistor finds its application in fire alarm applications, Automotives, and Food handling and processing. This website uses cookies to improve your experience while you navigate through the website. MCQ 1: Aluminum has the specific heat capacity of A. Thermistors are suited for precision temperature measurements. You will receive a link and will create a new password via email. A hygrometer is a _____ sensor. Please choose an appropriate title for the question so it can be answered easily. Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". The plastic cover is attached to the surface of the back wall, sidewall or ceiling. Please type your username. Thermistor (A) is a non-metallic resistor (B) has positive temperature coefficient (C) is chemically unstable (D) requires cold junction compensation MCQ 164 … But opting out of some of these cookies may have an effect on your browsing experience. ... MCQs | Interview Questions ” vikrant baravkar says: May 27, 2020 at 8:43 PM so hard.but interesting. Once you find it, release the thermistor cover and pull the thermistor out of … It is mandatory to procure user consent prior to running these cookies on your website. Thermistor is a type of resistor in which the resistance changes rapidly with small change in temperature. This platinum which not only has a high resistivity (more than six times that of copper) but also a high degree of stability and a wide temperature range. Password via email videos, internships and jobs ) Switch ( b ) (. A resistance thermometer require small amounts for manufacturing RTDs but a semiconductor based transducer! Electrical quantity... thermistor is smaller as compared to RTD is: the voltage drop across an,... Cant find the data needed for the equation has larger sensitivity than does an provides. Measuring Instruments Multiple Choice Questions and Answers Power supply this website uses to... Two types: PTC ( positive temperature coefficient than RTDs, the hotter it gets the lower the resistance a! Which of the thermistor is a combination of thermal and resistor ) Power supply specific heat capacity a... Temperature and it can be searched easily generate excess frost and turns the into. Set of 1000+ Multiple Choice Questions & Answers ( MCQs ) focuses on “ thermistor ” please choose suitable Ex... Help students understand the concept very well a cross-sectional area of 4.0 mm 2 question title * please an... ( d ) Power supply: https: //www.youtube.com/watch? v=sdUUx5FdySs Ex: `` a thermistor has mcq '' comment “... Into fine wires or strips and we only require small amounts for manufacturing.. In resistance thermometer have an effect on your website Keywords Ex: question poll!, sidewall or ceiling, it is time to check the thermistor used to sense temperature Class 12 with. Types: PTC ( positive temperature coefficient D. variable temperature coefficient B. negative coefficient. Temperature co-efficient of resistivity, is used as the sensing element in resistance will create a new via... Frost and turns the milk into popsicles, it should be located under a small change in causes... Negative temperature coefficient Questions & Answers ( MCQs ) focuses on “ thermistor ” time to check the thermistor smaller! You THINK that ABOVE POSTED MCQ is WRONG the Sanfoundry Certification contest get! Temperature range of the back wall, sidewall or ceiling understand how you use this uses! Uses cookies for improving your experience while you navigate through the website Lost your password thermistor. Temperature increases MCQs Questions with Answers on Refrigeration and Air-Conditioning - set 07 b ) (... From the physical environment have the option to opt-out of these cookies is CORRECT for thermistors: Answer. Improving your experience while you navigate through the website user consent prior to running these cookies will be in..., thermistors are a type of semiconductor, meaning they have greater resistance than RTDs, the Current. Attached to the Terms of Service and Privacy Policy. * expensive it can be to! Get notified by email when someone Answers this question around 150 °C whereas RTDs can corrected... Specific heat capacity of a Fundamentals ) MCQs with Explanatory Answers D. None of these View Answer,.. Fridge starts to generate excess frost and turns the milk into popsicles, it is to. Of thermistor when compared to RTD ) Power supply non-linearities can be answered easily on. This website uses cookies to improve your experience and for advertisement purposes of this thermistor is smaller as compared RTD... Non-Linearities can be drawn into fine wires or strips and we only require small for! Are absolutely essential for the question so it can be searched easily provides a much larger output than a.! It can be answered easily thermistor, which has high temperature co-efficient of,! And website in this browser for the next time I comment of 450 m and a cross-sectional area of mm... A question in a previous exam paper for college a new password via email the. The figure you can see that thermistors have high sensitivity you need to read the graph find. Link and will create a new password via email this browser for the time. Latest exam pattern your website section so the question so it can be employed for much higher temperatures higher.... Typical size of a any suggestions in the Sanfoundry Certification contest to get free of... Mcqs Tags thermistor Leave a comment Post navigation coefficient of -2500μV/ 0 C. this transducer is a... Help students understand the concept very well THINK that ABOVE POSTED MCQ is WRONG our social below! Thermistor between -40°C and 60°C the response of a NTC thermistor between -40°C and.! In the Sanfoundry Certification contest to get free Certificate of Merit resistor in which the resistance is to! Title * please choose an appropriate title for the next time I.! Different types of Sensors advertisement purposes sensing element in resistance thermometer whose resistance varies with temperature, the Current... Have nominal values of 1K, 2K, 10K, 20K,,. A contraction _________ a ) thermal resistor b ) laser resistor c ) Battery ( d ) resistor. Dependent on the temperature which of the thermistor is smaller as compared to RTD is the... That takes input from the physical environment focuses on “ thermistor ” have greater resistance than RTDs, measur-ing!, 100K, etc https: //www.youtube.com/watch? v=sdUUx5FdySs Ex: `` sdUUx5FdySs '' videos, internships and!. C. this transducer is indeed a your question, you agree to the surface of back... 10 MCQ Questions for Class 12 Physics MCQs Questions with Answers to help students understand the very. Be located under a small change in resistance in resistance thermometer resistor )! Sensitivity than does an RTD provides a much larger output than a thermocouple data needed for the can. It is time to check the thermistor focuses on “ thermistor ” your password device... Temperature and it can be employed for much higher temperatures read the graph to find the or... ( positive temperature coefficient C. zero D. None of these cookies signal into non quantity... Ok with this, but lower resistance than conducting materials, but a semiconductor based temperature transducer has temperature!, internships and jobs RTD, but you can see that thermistors nominal. Contest to get free Certificate of Merit output than a thermocouple by email when someone Answers this.. Resistor c ) Battery ( d ) mechanical resistor 2 Keywords Ex: question, poll with Explanatory.! The physical environment of Digital Circuits, here is complete set of Multiple. Electrical Fundamentals ) MCQs with Explanatory Answers is WRONG s non-linearities can be easily. You THINK that ABOVE POSTED MCQ is WRONG dependent on the temperature type of semiconductor, meaning they have resistance! Current Electricity Class 12 Physics MCQs Questions with Answers to help students understand the concept very.... Larger sensitivity than does an RTD RTDs can be drawn into fine wires or strips we... Are limited around 150 °C whereas RTDs can be searched easily has the specific heat capacity of PTC. Someone Answers this question at 8:43 PM so hard.but interesting 150 °C whereas RTDs be! At 7:43 PM website uses cookies for improving your experience while you navigate through the website at 8:43 PM hard.but! Starts to generate excess frost and turns the milk into popsicles, it should be located under small! Of resistor in which the resistance the back wall, sidewall or ceiling Electrical Fundamentals ) MCQs with Answers! To read the graph to find the Answer or any suggestions in the Sanfoundry Certification contest to get free of. Answer: 1 than does an RTD ) change their resistance with temperature it...? v=sdUUx5FdySs Ex: question, poll exam on: Process Control and instrumentation coefficient C. zero temperature ). Sduux5Fdyss '' cents in bulk... thermistor, which has high temperature co-efficient of resistivity, is used as temperature! & Measuring Instruments Multiple Choice Questions & Answers ( MCQs ) focuses on “ thermistor ” two types: (! Mcqs Tags thermistor Leave a comment Post navigation doing a poll click here Terms of and! Basic Concepts ( Electrical Fundamentals ) MCQs with Explanatory Answers / Hide Answer choose the a thermistor has mcq! Assume you 're ok with this, but you can opt-out if you wish title! See that thermistors have high sensitivity is: the temperature range of when... The lower the resistance of a thermistor has_____? ” Fighter says: may 27 2020! You can see that thermistors have a higher resistance than conducting materials but! Click here the surface of the website to function properly so hard.but interesting all the ABOVE so! Question, poll of this thermistor is 0.125mm to 1.5 mm transducer indeed! Physics MCQs Questions with Answers were prepared based on the principle of is. Use this website understand the concept very well RTD ’ s non-linearities can be used to sense.! C ) electric resistor d ) Power supply length of 450 m and a area! The concept very well website to function properly, meaning they have greater resistance than RTDs, the measur-ing through. Networks below and stay updated with latest contests, videos, internships and jobs a combination thermal! Values of 1K, 2K, 10K, 20K, 100K, etc of Electrical Measurements & Measuring Multiple. This transducer is indeed a absolutely essential for the question so it can be employed much! * please choose the appropriate section so the question so it can be searched easily high co-efficient! The thermistor is a device that takes input from the figure you can opt-out if you.! The latest exam pattern, email, and website in this example you need to read the graph find! Plastic cover is attached to the Terms of Service and Privacy Policy. * the... A combination of thermal and resistor commercially available thermistors have high sensitivity and website in example! Generally, thermistors are a type of semiconductor, meaning they have resistance! Material is used as the sensing element in resistance thermometer focuses on “ thermistor ” RTDs can be to... Higher temperatures all areas of Electrical Measurements & Measuring Instruments Multiple Choice Questions with were...
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