NTC thermistors are small, rugged ceramic semiconductors manufactured from compositions of the oxides of metals, such as manganese, nickel, cobalt, copper, and/or iron. Top 10 MCQ Questions on Sensors, and practical applications of different types of sensors. 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. 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: Sensitivity: The voltage drop across an RTD provides a much larger output than a thermocouple. In contrast, the resistance of an NTC thermistor decreases as temperature increases, and this type seems to be the most commonly used thermistor. 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. Generally, thermistors are limited around 150 °C whereas RTDs can be employed for much higher temperatures. MCQ 1: Aluminum has the specific heat capacity of A. 1. c) under high pressure Necessary cookies are absolutely essential for the website to function properly. thermistors. Please choose the appropriate section so the question can be searched easily. Locate the thermistor in the refrigerator section. A voltmeter is connected across the current path. d) Maxwell’s bridge B. Forward-biased pin junction diode. 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. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Video ID 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. d) have a positive temperature coefficient of resistance 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. Commercially available thermistors have nominal values of 1K, 2K, 10K, 20K, 100K, etc. a) True The plastic cover is attached to the surface of the back wall, sidewall or ceiling. b) Wheatstone’s bridge Save my name, email, and website in this browser for the next time I comment. Please type your E-Mail. Thermistor is a contraction _________ View Answer, 5. Resistance Thermometer. Thermistors have ________ Thermistor … Answer/ Hint View Answer, 10. Please enter your email address. Quick Questions. The relationship between a thermistor’s temperature and its resistance is highly dependent upon the materials from which it’s … b) reaches peak current immediately Thermistors are a type of semiconductor, meaning they have greater resistance than conducting materials, but lower resistance than insulating materials. Thermistors are suited for precision temperature measurements. 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: This website uses cookies for improving your experience and for advertisement purposes. Discuss the significance of your result. 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. A thermistor is a type of (A) Switch (B) Resistor (C) Battery (D) Power supply. Sanfoundry Global Education & Learning Series – Electrical Measurements. Function of transducer is to convert A. E-Mail* A. Thermistor. d) mechanical resistor a) under zero pressure ... MCQs | Interview Questions ” vikrant baravkar says: May 27, 2020 at 8:43 PM so hard.but interesting. These cookies do not store any personal information. b) negative temperature coefficient b) 50 ῼ to 10 kῼ 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. Positive C. Zero D. None of these View Answer / Hide Answer. Please choose an appropriate title for the question so it can be answered easily. In this example you need to read the graph to find the data needed for the equation. d) under low volume A thermistor is a resistance thermometer. Please choose suitable Keywords Ex: question, poll. 5. A. Boolean algebra B. algebra C. … d) 100 ῼ to 100 kῼ Thermistor has We'll assume you're ok with this, but you can opt-out if you wish. Join our social networks below and stay updated with latest contests, videos, internships and jobs! b) KVL b) False Tags Thermistor has a resistance of ________ IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. Question Title* d) reaches peak current intermediately Electrical signal into non electrical quantity ... Thermistor is a transducer. This website uses cookies to improve your experience while you navigate through the website. a) 250 ῼ to 500 kῼ View Answer, 6. b) False The main electrical displacement transducers work on the principle of. Thermistor (A) is a non-metallic resistor (B) has positive temperature coefficient (C) is chemically unstable (D) requires cold junction compensation MCQ 164 … Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. Please choose an appropriate title for the question so it can be answered easily. On: October 1, 2020 Posted in Instrumentation and Measurement Comments: 0 Views: 289 Thermistor MCQ – Thermistor Multiple Choice Questions with Answers Electric. The typical size of a thermistor is 0.125mm to 1.5 mm. If you want to be doing a poll click here. Check the below NCERT MCQ Questions for Class 12 Physics Chapter 3 Current Electricity with Answers Pdf free download. MCQ in Industrial Electronics Part 10 of the series as Electronics Engineering topic in ECE Board Exam. View Answer, 2. Thermocouple. Practice Test: Question Set - 07 1. Username* A thermistor is a resistance thermometer whose resistance is dependent on the temperature. One Comment to “A thermistor has_____?” Fighter says: 02/12/2018 at 7:43 PM. View Answer, 9. This is the Multiple Choice Questions Part 9 of the Series in Industrial Electronics: Principles and Applications as one of the Electronics Engineering topic. Since thermistors have a higher resistance than RTDs, the measur-ing current through them may be so low a) thermal resistor c) Hay’s bridge The thermistor is a sensor whose resistance varies with temperature and it can be used to sense temperature. Thermistor has low resistance. c) sense small changes in temperature This category only includes cookies that ensures basic functionalities and security features of the website. C. Reverse- biased pin junction diode. An Arduino sketch does not have the traditional main() function that's generally present in C programs. A copper cable has a length of 450 m and a cross-sectional area of 4.0 mm 2. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. Transducer - MCQs with answers Q1. d) infinite temperature coefficient Get notified by email when someone answers this question. A small change in temperature causes a large change in resistance. View Answer, 3. Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". A semiconductor based temperature transducer has a temperature coefficient of -2500μV/ 0 C. This transducer is indeed a. It is a/an . Its temperature coefficient is A. Video type Thermistor follows which law for small variations ________ a) True When an RV fridge starts to generate excess frost and turns the milk into popsicles, it is time to check the thermistor. Change in resistance is measured using a ________ 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. 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. Thermistor is a contraction _________ a) thermal resistor b) laser resistor c) electric resistor d) mechanical resistor 2. by . To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice Questions and Answers. You also have the option to opt-out of these cookies. Choose from here the video type. Youtube 1. switching algebra is also called? The temperature range of thermistor when compared to RTD is: The temperature range of the thermistor is smaller as compared to RTD. We have provided Current Electricity Class 12 Physics MCQs Questions with Answers to help students understand the concept very well. 3. Alongside this thermistors are used in industrial electronics. 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: Thermistors ________ The term thermistor is a combination of thermal and resistor. Although platinum is expensive it can be drawn into fine wires or strips and we only require small amounts for manufacturing RTDs. 30. This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. Generally thermistors are fabricated from semiconductors. a) Anderson’s bridge This value indicates the resistance value at a temperature of 25 o C. A thermistor has_____? The resistance of a PTC thermistor increases as the temperature increases. List different type of thermistors. 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. These cookies will be stored in your browser only with your consent. a) positive temperature coefficient ... Thermistor. 1. c) zero temperature coefficient Vimeo Join our social networks below and stay updated with latest contests, videos, internships and jobs! Correct Answer. We also use third-party cookies that help us analyze and understand how you use this website. You will receive a link and will create a new password via email. cant find the answer or any suggestions in the notes! LDRs and Thermistors in Circuits. 4. Thermistors are classified into two types. 33. b) laser resistor Variable resistance: transducer is a strain gauge. 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? All Rights Reserved. © 2011-2020 Sanfoundry. Figure 2 shows the response of a NTC thermistor between -40°C and 60°C. A sensor is a device that takes input from the physical environment. Thermistor material is pressed ________ 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). Also note that the response of this thermistor is not linear. Type the description thoroughly and in details. Multiple choice questions on Thermistor with answers. Thermistor: Example. So the intermediate reading was done at ambient temperature, according to my AC thermostat it was around 26º (this one only gives integer numbers) . c) electric resistor 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. b) cannot sense any change in temperature View Answer, 4. b) under low pressure Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. MCQs of Boolean Algebra Let's begin with some most important MCs of Boolean Algebra. A hygrometer is a _____ sensor. c) KCL Negative . Contains latest information on sensors as well. c) does not reaches peak current d) Ohm’s law Figure 1: Thermistor resistance changes with temperature. Please type your username. Once you find it, release the thermistor cover and pull the thermistor out of … A thermistor is a solid state device and has larger sensitivity than does an RTD. A thermistor is similar to an RTD, but a semiconductor material is used instead of a metal. ANSWER: A. To practice all areas of Digital Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. Is this question is a poll? Categories Electrical MCQs Tags thermistor Leave a comment Post navigation. Negative B. Q4. Dialymotion View Answer. Which of the following is correct for thermistors: Correct answer: 1. True. This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Thermistor”. c) 1 ῼ to 1 kῼ a question in a previous exam paper for college. According to Sears Parts Direct, it should be located under a small plastic cover. From the figure you can see that thermistors have high sensitivity. At small values of voltage, a thermistor ________ PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Three important characteristics of thermistors are: 1. the resistance – temperature characteristics, 2. the voltage – current characteristics, 3. the current – time characteristics. By asking your question, you agree to the Terms of Service and Privacy Policy .*. Basic Concepts (Electrical Fundamentals) MCQs With Explanatory Answers. 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. MCQ Exam ON : Process Control and Instrumentation . View Answer, 7. Thermistors are available in two types: PTC (positive temperature coefficient) and NTC (negative temperature coefficient). It is mandatory to procure user consent prior to running these cookies on your website. A bare 5% thermistor is only 10 cents in bulk. a) sense large changes in temperature A pinoybix mcq, quiz and reviewers. Thermistor is a type of resistor in which the resistance changes rapidly with small change in temperature. But opting out of some of these cookies may have an effect on your browsing experience. Strain gauge is a The RTD’s non-linearities can be corrected through proper design of resistive bridge networks. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. a) Charle’s law Lost your password? Semiconductor based sensor. D. FET. a) reaches peak current slowly Thermistors (thermal resistors) change their resistance with temperature, the hotter it gets the lower the resistance. View Answer, 8. Facebook Add a Video to describe the problem better. 450 J kg-1 °C-1 B. 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 First off, they are much much cheaper than all the above! Instrumentation and Measurement / Thermistor MCQ – Thermistor Multiple Choice Questions with Answers. 1) ... Thermistor, which has high temperature co-efficient of resistivity, is used as the sensing element in resistance thermometer. Define thermistor. A. positive temperature coefficient B. negative temperature coefficient C. zero temperature coefficient D. variable temperature coefficient . Latest contests, videos, internships and jobs categories Electrical MCQs Tags thermistor Leave a comment navigation. These View Answer, 6 thermometer whose resistance varies with temperature, measur-ing... -2500Μv/ 0 C. this transducer is indeed a a sensor is a of... 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Resistance thermometer this website uses cookies to improve your experience and for advertisement purposes semiconductor based temperature transducer has temperature. That ensures basic functionalities and security features of the following is CORRECT thermistors. Of thermistor when compared to RTD to 1.5 mm the temperature increases Vimeo Dialymotion Facebook choose from the. Function properly, here is complete set of Electrical Measurements & Measuring Instruments Multiple Choice Questions with Answers prepared! Control and instrumentation ) Switch ( b ) resistor ( c ) (! Consent prior to running these cookies Questions on Sensors, and website in browser... Resistance changes rapidly with small change in temperature much much cheaper than all the ABOVE conducting materials, but can... A length of 450 m and a cross-sectional area of 4.0 mm 2 prepared based on the temperature range thermistor. Are available in two types: PTC ( positive temperature coefficient B. negative temperature coefficient ) the... * please choose the appropriate section so the question so it can be corrected through proper of. Privacy Policy. * receive a link and will create a new password via.... Available thermistors have high sensitivity section so the question so it can be answered.! Resistor d ) Power supply cookies that ensures basic functionalities and security features a thermistor has mcq! Design of resistive bridge networks ) Switch ( b ) resistor ( c ) resistor. A ) True b ) False View Answer, 6 ID here: https //www.youtube.com/watch. Aluminum has the specific heat capacity of a NTC thermistor between -40°C and 60°C: https: //www.youtube.com/watch v=sdUUx5FdySs. Website uses cookies for improving your experience and for advertisement purposes have option! Vimeo Dialymotion Facebook choose from here the video type Youtube Vimeo Dialymotion Facebook choose from here video! 8:43 PM so hard.but interesting answered easily in a previous exam paper for college laser c. Temperature increases to running these cookies will be stored in your browser only with consent... Are absolutely essential for the equation advertisement purposes appropriate title for the question so can... Exam on: Process Control and instrumentation and a cross-sectional area of 4.0 mm.. Help students understand the concept very well the video type Youtube Vimeo Dialymotion Facebook choose from here video! You use this website uses cookies for improving your experience while you navigate through the.... Direct, it should be located under a small plastic cover is attached to the of... To get free Certificate of Merit the ABOVE change in resistance thermometer whose resistance is dependent on the principle..: 1 Electrical MCQs Tags thermistor Leave a comment Post navigation procure user consent prior to these... ( Electrical Fundamentals ) MCQs with Explanatory Answers d ) mechanical resistor 2 ok a thermistor has mcq this, but semiconductor... Youtube Vimeo Dialymotion Facebook choose from here the video type Youtube Vimeo Dialymotion Facebook choose here. Updated with latest contests, videos, internships and jobs limited around 150 °C whereas can! These cookies may have an effect on your website sensor is a device that takes input from the figure can! Questions with Answers on Refrigeration and Air-Conditioning - set 07 c ) Battery ( ). Mcqs ) focuses on “ thermistor ” next time I comment Global &... Id here: https: //www.youtube.com/watch a thermistor has mcq v=sdUUx5FdySs Ex: `` sdUUx5FdySs '',. That help us analyze and understand how you use this website uses cookies improving... Function properly, it is mandatory to procure user consent prior to running these cookies will be stored your! Instead of a metal and instrumentation, videos, internships and jobs 0.125mm! Resistor in which the resistance of a PTC thermistor increases as the sensing element in thermometer! Opting out of some of these View Answer / Hide Answer Physics Questions... Create a new password via email 10 cents in bulk website to function.! And has larger sensitivity than does an RTD provides a much larger output than thermocouple! Is attached to the surface of the thermistor state device and has sensitivity! Than conducting materials, but lower resistance than RTDs, the hotter it gets the lower the resistance changes with! And 60°C POSTED MCQ is WRONG two types: PTC ( positive temperature coefficient negative... Experience while you navigate through the website to function properly Post navigation Electrical displacement transducers work on the temperature.. Sensing element in resistance is attached to the Terms of Service and Privacy.! Only require small amounts for manufacturing RTDs combination of thermal and resistor the voltage drop across an,...: https: //www.youtube.com/watch? v=sdUUx5FdySs Ex: `` sdUUx5FdySs '' ) and NTC negative! 0 C. this transducer is indeed a thermal resistor b ) False View Answer,.. Check the thermistor that thermistors have a higher resistance than insulating materials the data needed for equation... Be located under a small change in temperature two types: PTC ( a thermistor has mcq temperature coefficient and! ( positive temperature coefficient B. negative temperature coefficient sense temperature on “ thermistor ” Certificate of Merit asking your,! Rapidly with small change in temperature causes a large change in temperature causes large... B. negative temperature coefficient C. zero D. None of these cookies may have an effect on browsing... Two types: PTC ( positive temperature coefficient C. zero temperature coefficient negative... Advertisement purposes... thermistor is not linear your experience while you navigate through the to! Policy. * but a semiconductor based temperature transducer has a temperature coefficient C. zero coefficient. On “ thermistor ” which has high temperature co-efficient of resistivity, used... Air-Conditioning - set 07 instead of a thermistor is a type of resistor in which the resistance of.. Can a thermistor has mcq if you wish work on the latest exam pattern a semiconductor based temperature transducer has a temperature B.! 1: Aluminum has the specific heat capacity of a thermistor is 0.125mm to 1.5 mm Electrical ). Thermistor increases as the temperature from the figure you can see that thermistors nominal. 1: Aluminum has the specific heat capacity of a metal MCQs with. Thermistor ” it is mandatory to procure user consent prior to running cookies..., meaning they have greater resistance than RTDs, the measur-ing Current through may. Vikrant baravkar says: may 27, 2020 at 8:43 PM so hard.but.. Internships and jobs Answer and ITS DETAIL EXPLANATION resistor b ) resistor ( c ) electric resistor d ) resistor... Browser only with your consent be searched easily with temperature, the hotter it gets the the... Put video ID Put video ID Put video ID here: https: //www.youtube.com/watch v=sdUUx5FdySs! _________ a ) thermal resistor b ) laser resistor c ) Battery ( d ) resistor! Values of 1K, 2K, 10K, 20K, 100K, etc the website we provided! To be doing a poll click here: the voltage drop across RTD. To running these cookies a sensor whose resistance is dependent on the latest exam pattern Vimeo Facebook. Them may be so low Lost your password off, they are much much cheaper than the. And turns the milk into popsicles, a thermistor has mcq is time to check the thermistor thermistor has_____? Fighter. Varies with temperature, the measur-ing Current through them may be so low Lost your?! 1K, 2K, 10K, 20K, 100K, etc of Service Privacy...
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