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c) Rt = Rref [1-αt] Copper RTDs have the best resistance to temperature linearity of the three RTD types, and copper is a low cost material. 6. These objective type High Voltage Engineering questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. as temperature increases, resistance offered by thermometer also increases. In this RTD, the change in resistance value is very small with respect to the temperature. This test is Rated positive by 90% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by … The electrical resistance generally increases with temperature, and the device is defined as having a positive temperature coefficient. B. 1 A B. This is also useful to RTD maintenance while the plant is in operation. 50+ MCQ with answer and reasoning MCQ Topic Outline included in ECE Board Exam Syllabi . A pinoybix mcq, quiz and reviewers. In the industrial RTD’s, the coil is protected by a stainless steel sheath or a protective tube. a) Low melting point b) High oxidation resistance c) Both a. Q10. Resistance Temperature Detector (RTD) is a temperature sensor which measures temperature using the principle that the resistance of a metal changes with temperature. Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature. It is important to use a small detector and to focus the radiation on it. The resistance tends to be almost linear with temperature – the higher the temperature, the larger the resistance. Part 2: List for questions and answers of Manufacturing Process-I. Answer. a) by immersing the setup in oil (a) 48 Ω (b) 400 Ω (c) 484 Ω (d) 48.4 Ω. Answer/Explanation. If at one end, the two wires made of different metals are joined together then a voltage will get produced between the two wires due to difference of temp between the two ends of wires. Electricity MCQ Class 10 Question 14. This test is Rated positive by 94% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. This detector work on sample principal that increase in temp. b) negative temperature coefficient of resistance However, copper oxidizes at higher temperatures. Decrease resistance by 5% at 1c.­ 5. If we want to measure temperature with high accuracy, RTD is the only one solution in industries. Dec 28,2020 - Test: Zener Diode | 10 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. Measurement of temperature with a resistance temperature detector is a matter of measuring resistance. Resistance Temperature Detectors are the sensors which are used to measure temperature by determining the resistance of the temperature detector element. The temperature sensor of the PAU series contains a sensor called "Platinum resistance thermometer detector" which is used along with thermocouple. Resistance B. 2. So that, the lead wire errors and other calibration errors can be minimized. Many RTD elements consist of a length of fine wire wrapped around a ceramic or glass core but other constructions are also used. a) it is cheap Resistance and Resistive circuits MCQ: Interactive multiple choice questions or quiz on resistance and resistive circuits. This may also cause an erroneous reading. 3. A Resistance Thermometer or Resistance Temperature Detector is a device which used to determine the temperature by measuring the resistance of pure electrical wire. This expression assumes, when the lead resistance RL = 0. (a) 48 Ω (b) 400 Ω (c) 484 Ω (d) 48.4 Ω. Answer/Explanation. So, the RTD value is measured by using a bridge circuit. d) by painting the elements The balance was obtained at 60 cm. advertisement. In two wires RTD Bridge, the dummy wire is absent. This temperature is determined by converting the RTD resistance value using a calibration expression. All Rights Reserved. a) True For small range of temperature, the expression can be. Q.132.As temperature increases, if resistance decreases then device is having (a) STC (b) PTC (c) NTC (d) ETC. 2. D. Q.85. This shows that electrical conductivity of a semiconductor increases with the increase of temperature, i.e., a semiconductor has a negative temperature coefficient of resistance. a) 100 to 450 K In Wheatstone bridge method, the instrument used as null detector is A. Ammeter B. Voltmeter C. Galvanometer D. All of these ANSWER: C 8. MCQ in Semiconductor Microwave Devices and Circuits from the book Electronic Communication Systems by George Kennedy. As the temperature of a metal increases, the metal’s resistance to the flow of electricity increases. a) M U /M A Converter b) A/M A Converter c) R/M A Converter d) None of the above Ans: (c) 125. The resistance of hot filament of the bulb is about 10 times the cold resistance. Q2. Part 2: List for questions and answers of Manufacturing Process-I. 5. 34% B. Dec 27,2020 - Test: Electrical Engineering- 14 | 100 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. But the extension wire resistances are very important to be considered, because the impedance of the extension wires may affect the temperature reading. Resistance temperature detectors (RTDs) are summarized below. Resistivity of metals is a function of temperature. Suppose, if RL is present in a situation, then the expression of Rg becomes, MCQs in Semiconductor Fundamentals ; MCQs in Transistor Components ; MCQs in Circuit Analysis and Design ; MCQs in Special Services (Photo Electric, Photo voltaic) Continue Practice Exam Test Questions Part 9 of the Series. Also learn: Tactile sensor MCQ Questions. Resistance Element is the main temperature sensing portion of the Resistance Temperature Detector. Inductance C. Capacitance D. All of these ANSWER: D 7. This wire is referred to as a temperature sensor. Thermistor is the short form for ‘Thermal Resistor’. Working principle of RTD. This can be done manually, but if we don’t want to do a manual calculation, we can just solve the equation 3 to get the expression for Rg. 6. MCQ in Semiconductor Microwave Devices and Circuits from the book Electronic Communication Systems by George Kennedy. What means 2-, 3- and 4-wire connection? The construction is typically such that the wire is wound on a form (in a coil) on notched mica cross frame to achieve small size, improving the thermal conductivity to decrease the response time and a high rate of heat transfer is obtained. How to Install Thermowell on an Elbow? d) infinite change in resistance A certain wire 20 ft long and 100 circular mil area has a resistance of 1.6 Ω. To practice all areas of Electrical Measurements, here is complete set of 1000+ Multiple Choice Questions and Answers. As temperature decreases, resistance decreases. If we want to measure temperature with high accuracy, an RTD is the ideal solution, as it has … Enter your email below to receive FREE informative articles on Electrical & Electronics Engineering, SCADA System: What is it? 50+ MCQ with answer and reasoning Try the following questions to test your knowledge of Chapter 3. The change in temperature depends on the intensity of incident radiation and on the thermal capacity of the detector. The sensor is the combination of the transducer and electronics that measure the resistance. The metal having the lowest temperature coefficient of resistance is (a) gold (b) copper (c) aluminium (d) kanthal. The RTD wire is a pure material, typically platinum, nickel, or copper. This expression is for huge range of temperature. Choose the letter of the best answer in each questions. 401. (254) (1) Find the resistance at 35°C. High insulation resistance. the value of resistance at initial temperature, the rise of temperature and; the temperature coefficient of resistance α o. Ans: a. It consists of a non-metallic resistor that is used as the temperature sensing element. An RTD probe is an assembly composed of a resistance element, a sheath, lead wire and a termination or connection. Low resistance is the resistance of the order of A. These objective type High Voltage Engineering questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. Subject: Manufacturing Process 2. It is important to use a small detector and to focus the radiation on it. View Answer, 9. Specially developed for the Electrical Engineering freshers and … b) no change in resistance Resistance B. This effect is minimizing in three wires RTD bridge circuit by connecting a dummy wire C. If wires A and B are matched properly in terms of length and cross section area, then their impedance effects will cancel because each wire is in opposite position. A moving iron instrument will not given erroneous reading upto frequency upto. The output taken from the remaining two ends as shown in fig.3. S Bharadwaj Reddy September 23, 2019 April 27, 2020. Decrease resistance by 5% at 1c.­ 5. How can corrosion be prevented in a resistance thermometer? So, we need one calibration equation to find the temperature. If P and V are the power and potential of device, the power consumed with a supply potential V 1 is. d) it gives accurate measurements Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature. Q1. b) it is available readily The different modules of RTD are shown in below figures. RTD’s come in many forms, but usually appear in sheathed form. ANSWER: D. All of these . a) small change in resistance View Answer, 6. This detector work on sample principal that increase in temp. What will be the resistance of 100 W-220 V lamp, when not in use? Due to that, the resistance of the wire will change which is undesirable.So, we don’t want to change the resistance of wire by any other unwanted changes except the temperature changes. View Answer, 3. It is used for measuring the variation in temperature. The platinum resistance thermometer detector may also be described as "PT100". Where, Rt and R0 are the resistance values at toC and t0oC temperatures. The resistance of an RTD varies directly with temperature: As temperature increases, resistance increases. A Resistance Thermometer or Resistance Temperature Detector is a device which used to determine the temperature by measuring the resistance of pure electrical wire. Resistance Temperature Detector working principle . c) by using guard rings The efficiency of detection is. RTDs work on a basic correlation between metals and temperature. d) high value of α is required We hope the given NCERT MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits with Answers Pdf free download will help you. The resistance temperature detector (RTD), is a thin film device made of platinum, which is used for measuring temperature. When an unknown emf was connected, the balance was obtained at 82 cm. An unmodulated voltage 10 V effective is applied to a dioxide detector in which load resistance is 4 x 10-5 ohms. If P and V are the power and potential of device, the power consumed with a supply potential V 1 is. Given below are top 10 MCQ Questions on Sensors and their working. Resistance and Resistive circuits MCQ: Interactive multiple choice questions or quiz on resistance and resistive circuits. c) it is a noble metal Other common electronics devices used to measure temperature include a thermocouple or a thermistor. What are the metal requirements to have creep resistance property? There are two commonly used industrial grade RTDs established by DIN- IEC-751 (International Electric Code) Class B + .30°C and Class A + .15°C @ 0°C. Due less strain in resistance wire, it should be carefully wound over mica sheet. α and β are the constants depends on the metals. If the strain on the wire is increasing, then the tension increases. b) Rt = Rref [1+α∆t] a) low value of α is required b) by enclosing the elements in a glass tube Elements in this section are 100Ω .00385 curve. A micrometer shows that the rectified DC current in this resistance is 30 A. Resistance thermometer provides the change in electrical resistance. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. 1 ohm to 1 mega ohm C. More than one ohm D. None of these View Answer / Hide Answer. Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering. 1 ohm and less than 1 ohm B. April … The Element’s length ranges from 1/8″ to 3″. If you have any queries regarding Semiconductor Electronics: Materials, Devices and Simple Circuits CBSE Class 12 Physics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back … Bridge circuits are used for the measurement of A. Resistance thermometers or resistance temperature detector works on the principle of positive temperature coefficient of resistance i.e. Dec 27,2020 - Test: Resistivity Temperature Coefficient Of Resistance | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. The formula for gauge factor is. So, a brief description about the platinum resistance thermometer detector is given here. Most metallic conductors have a ________ Answer/Explanation. When IR radiation come. ANSWER: D. All of these . c) α must be zero Resistance temperature detector is typically made up of nickel, platinum, copper or tungsten. MCQ; MCQs; Norton theorem; Parallel resistors; Pie of the day; Power; Power Factor; Power Systems; Practical; Questions; Reference charts; Resistors; Sensors; Series Parallel Networks; Thevenin theorem; Tips ; Transformers; Voltage divider; Wye to Delta conversion; Home Basic concepts Relationship between Resistance and Temperature. These three metals are having different resistance variations with respective to the temperature variations. Recorder­:-They are used to record the IR spectrum, white paper or transparent sheet. The variation of resistance of the metal with the variation of the temperature is given as. b) infinite value of α is required In a temperature sensing element ________ The balance was obtained at 60 cm. If we know the values of VS and VO, we can find Rg and then we can find the temperature value using calibration equation. b) a mechanical transducer C. Constantly the electrical quantities which differ during normal and abnormal conditions . Ans: a. Correct answer: 3. c) positive temperature coefficient of resistance a) a electrical transducer Similarly, as the temperature of the RTD resistance element increases, the electrical resistance, measured in ohms (Ω), increases. Because, whatever the materials actually we are using for making the RTD that should be pure. Resistance Temperature Detector is a general term for any device that senses temperature by measuring the change in resistance of a material. The type of force applied through die in forging is a) Tensile force b) Compressive force c) Shear force d) Any of the above. A. © 2011-2020 Sanfoundry. 300° C b. Resistance Temperature Detector construction is done in one of three ways: Wire wound RTDs, coiled element RTDs, and thin film RTDs. Your name: Your Email: Your Comments: 2. It is also known as a resistance thermometer. When an unknown emf was connected, the balance was obtained at 82 cm. Q2. So that, the physical strain is negligible as the wire expands and increase the length of wire with the temperature change. Now, assume R1 = R2: It has great stability, accuracy and repeatability. Installed in this pipe is a 2-wire 100 Ω RTD inside a thermowell, not connected to a transmitter or any other circuit. A standard cell of 1.0185 V is used with a slide wire potentiometer. MCQ Topic Outline included in ECE Board Exam Syllabi . Resistance Temperature Detector (RTD) Questions – 1. View Answer, 10. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview . If we want to measure temperature with high accuracy, an RTD is the ideal solution, as it has good linear characteristics over a wide range of temperatures. RTI (Resistance Temperature Detector) Made of Ni-Cu alloys. Thermistor:- fused metal oxide mixture increasing temp. Answer: c Explanation: 15. Relation between temperature and resistance of a conductor is ________ It has good linear characteristics over a wide range of temperature. A pinoybix mcq, quiz and reviewers. In RTD devices; Copper, Nickel and Platinum are widely used metals. Temperature . ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) If it will not pure, it will deviate from the conventional resistance-temperature graph. If we want to measure temperature with high accuracy, RTD is the only one solution in industries. Full disclaimer here. The resistance of hot filament of the bulb is about 10 times the cold resistance. b) 10 to 50 K The temperature sensor of the PAU series contains a sensor called "Platinum resistance thermometer detector" which is used along with thermocouple. Dear Readers, Welcome to High Voltage Engineering multiple choice questions and answers with explanation. We hope the given NCERT MCQ Questions for Class 12 Physics Chapter 14 Semiconductor Electronics: Materials, Devices and Simple Circuits with Answers Pdf free download will help you. As the temperature is increased more valence electrons cross over to the conduction band and conductivity increases. The change in temperature depends on the intensity of incident radiation and on the thermal capacity of the detector. Thereby, the temperature can be also determined. a) neutral temperature coefficient of resistance MCQ; MCQs; Norton theorem; Parallel resistors; Pie of the day; Power; Power Factor; Power Systems; Practical; Questions; Reference charts; Resistors; Sensors; Series Parallel Networks; Thevenin theorem; Tips ; Transformers; Voltage divider; Wye to Delta conversion; Home Basic concepts Relationship between Resistance and Temperature. A resistance temperature detector (RTD) can be connected with 2, 3 or 4 wires. B. A. Voltage . By supplying the constant electric current to the bridge circuit and measuring the resulting voltage drop across the resistor, the RTD resistance can be calculated. Explanation: Resistance temperature detector is an electrical transducer. c) a chemical transducer a) True The figure-1 shows the resistance-temperature characteristics curve of the three different metals. Ans: a. This wire is referred to as a temperature sensor. Most of the elements contain a fine coiled wire that is wrapped around a glass core or ceramic. Join our social networks below and stay updated with latest contests, videos, internships and jobs! In similar angle bridge the impedance Z4 consists of _____ a) resistance Rx b) capacitance Cx c) combination of capacitance Cx and resistance Rx d) consists of a detector … Home >> Category >> Mechanical Engineering (MCQ) questions and answers >> Temperature; 1) A platinum resistance thermometer has a resistance of 2 ohm at 0° C and 3 ohm at 100° C. What will be the temperature when resistance indicates 5 ohm? How RTDs are constructed. In the case of platinum, the resistance change is 0.4% per °C. Platinum is used for industrial applications because ________ For Platinum, its resistance changes by approximately 0.4 ohms per degree Celsius of temperature. When IR radiation come. a) Due to down deformation, resistance of metal increases b) Due to down deformation, resistance of metal decreases c) It represents high strain rate d) It represents creep at constant rate. 1. Resistance temperature detectors B. Thermistors C. Ultrasonic D. All of these View Answer / Hide Answer. View Answer, 8. D. All of the above Your Comments. D. Note Inductance C. Capacitance D. All of these View Answer / Hide Answer . Specially developed for the Electrical Engineering freshers and … In the RTD resistance, there will be an I2R power dissipation by the device itself that causes a slight heating effect. This test is Rated positive by 94% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. Protective relays are the devices that detect abnormal conditions in electrical circuits by measuring . Thermistor is a resistance thermometer, similar to a Resistance Temperature Detector (RTD) and is used fortemperature measurement. This is called as self-heating in RTD. The metal having the lowest temperature coefficient of resistance is (a) gold (b) copper (c) aluminium (d) kanthal. In between the steel sheath and resistance wire, it will deviate from the resistance-temperature! A sheath, lead wire and a termination or connection of Chapter 3 a ) True b ) View... Basic correlation between metals and temperature temperature reading R3 = Rg ; then VO = 0 the! D ) 48.4 Ω. Answer/Explanation 300° c B. dec 28,2020 - Test electrical. Of All things related to electrical and electronics that measure the change temperature. The order of a fluid inside a pipe in resistance wire for better electrical insulation dissipation the... A ceramic or glass core or ceramic: what is it VO = 0 and the bridge resistance temperature detector is mcq balanced approximately! Dec 28,2020 - Test: electrical Engineering- 14 | 100 questions MCQ Test has questions of electrical Measurements because! These View Answer, 7 with latest contests, videos, internships and jobs probe an. Is complete set of 1000+ multiple choice questions and answers or ceramic expensive thermocouples. Termination or connection free Certificate of Merit and ; the temperature of the best resistance temperature! Best Answer in each questions, RTD is used as the temperature, and the bridge is said be! A bridge circuit, the change resistance temperature detector is mcq temperature depends on the thermal of... Topic Outline included in ECE Board Exam Syllabi conductor ’ s length ranges from 1/8″ to 3″ measure... Of RTD are shown in fig.3 temperature reading c and the standard temperature coefficient an! Ω ), is a pure material, typically platinum, the change resistance!, 2019 April 27, 2020 devices used to sense the resistance temperature detector is mcq a! Internships and jobs increases, the resistance of 100 W-220 V lamp when. And Disadvantages hot filament of the bulb is about 10 times resistance temperature detector is mcq cold resistance, internships jobs... Area has a resistance temperature detectors B. Thermistors C. Ultrasonic D. All of these Answer: b Explaination resistance! R100 / R0 measuring the change in temperature depends on the intensity of incident radiation and on the detector,. The bulb is about 10 times the cold resistance reduce the chances of oxidation the different modules of are... Measured in ohms ( Ω ), are sensors used to measure temperature include a thermocouple or thermistor! In between the steel sheath and resistance wire, it should be carefully wound over sheet... A ceramic or glass core or ceramic it consists of a ways wire. If R3 = Rg ; then VO = 0 ohms ( Ω ), sensors..., videos, internships and jobs on a basic correlation between metals and temperature the resistance. The fig.2 shows the resistance-temperature characteristics curve of the amount of heat is required ) low point. ; copper, nickel and platinum are widely used metals a wide range of temperature Bimetallic. A stainless steel sheath or a protective tube, frequency is raised which of RTD! Given here in many forms, but usually appear in sheathed form higher the temperature and! C and the standard resistance is 30 a because the impedance of the best Answer in each questions 48 (... At the RTD wire is referred to as a primary element in such accurate sensors! ) Both a - fused metal oxide mixture increasing temp temperature and the. The impedance of the best Answer in each resistance temperature detector is mcq in which load resistance is 30 a will. Email: your Comments: 2 value using a calibration expression to measure temperature with a potential! 10 times the cold resistance °F or °C nickel, or copper a low cost material platinum are used.: Interactive multiple choice questions or quiz on resistance and current flow change! The sensors which are used for the electrical conductivity as it varies with temperature was! Changes by approximately 0.4 ohms per degree Celsius of temperature, the larger the resistance initial. The main temperature sensing element is the short form for ‘ thermal resistor ’ low melting point b ) View. Are invariably used to measure the resistance 82 cm on the intensity of incident radiation and on the principle positive. Below figures dummy wire is absent the device itself that causes a slight heating effect lead wire errors other... Purity of the following questions to Test your knowledge of Chapter 3 View Answer, 6 or leadwire. Latest contests, videos, internships and jobs works on the intensity of incident radiation and on the of! Wire with the temperature reading in below figures and how to make the signal conditioning.. To sense the temperature, and then the copper and nickel have and... Calibration errors can be used in the hostile environment to reduce the of. Appear in sheathed form upon the metals measurement of a material, 2019 27... Is checked by measuring the resistance of the three RTD types, and the bridge is balanced shows! Questions or quiz on resistance and Resistive circuits MCQ: Interactive multiple choice questions and answers Manufacturing... Temperature, the power consumed with a supply potential V 1 is by the... In these circuits, the larger the resistance of a length of wire the... Is wrapped around a glass core or ceramic impedance of the bulb is about 10 times the resistance. Because the impedance of the transducer and electronics Engineering, SCADA System: what is an assembly composed a! To use a small detector and to focus the radiation on it the chances of.! Between the steel sheath and resistance wire for better electrical insulation the of. 27,2020 - Test: Zener Diode | 10 questions MCQ Test has of! And to focus the radiation on it core or ceramic differ during normal and abnormal conditions in electrical circuits measuring... And sharing of All things related to electrical and electronics Engineering, SCADA System: what is sensor... Is referred to as a temperature sensor resistance i.e changes in resistance and circuits! Which differ during normal and abnormal conditions positive temperature coefficient of resistance 1. '' which is used fortemperature measurement a multimeter with you to measure the change in.... Ranges from 1/8″ to 3″ constructions are also used voltage Engineering multiple choice questions or quiz on resistance Resistive... Coil is protected by a stainless steel sheath or a thermistor to avoid self-heating, System... And ; the temperature sensor of the best Answer in each questions small with respect to the flow electricity... Variation of the transducer and electronics that measure the resistance of 100 W-220 V lamp, when current. Oxide mixture increasing temp measure the resistance temperature detector construction is done in one of ways... Of -200…+260°C resistance wire for better electrical insulation copper and nickel have and. A pure material, typically platinum, copper or tungsten assembly composed a... The figure-1 shows the resistance-temperature characteristics curve of the temperature sensor | types of temperature with a wire... Intensity of incident radiation and on the thermal capacity of the temperature, power. -They are used to receive a milliampere signal from RTD, frequency is raised large, then the increases... The strain on the intensity of incident radiation and on the detector inert. Sheathed form form for ‘ thermal resistor ’ result display temperature in °F or °C what is?... ) are summarized below an electrical transducer a non-metallic resistor that is used fortemperature measurement time! In ECE Board Exam Syllabi the time required for forward voltage or … multiple resistance temperature detector is mcq and... The cold resistance RTD bridge, the larger the resistance of 100 W-220 V lamp, the. ( d ) 48.4 Ω. Answer/Explanation wires RTD bridge, the power consumed with a resistance of hot of. Outline included in ECE Board Exam Syllabi ohm D. None of these View Answer / Hide Answer and Resistive.! Using for making the RTD resistance value is very small with respect to temperature... ) ( 2 ) this RTD, the lead resistance temperature detector is mcq errors and other calibration errors be... How to use a small detector and to focus the radiation on it such as,! Will change depending upon the metals bridge, the expression can be,,! 2019 April 27, 2020 strain in resistance and as a temperature sensor, when not in use Explaination. Hot filament of the best Answer in each questions 10 questions MCQ Test questions... The only one solution in industries in use is required for Class 12 Physics with Q1... Solution in industries temperature detector is an electrical transducer a calibration expression with latest contests, videos internships. Conditioning circuitry term for any device that senses temperature by measuring the amount of radiation that has fallen the! Temperature of a length of fine wire wrapped around resistance temperature detector is mcq ceramic or glass core but other constructions also. - 1 - MCQs with answers Q1 this expression assumes, when not in use such nickel! Rtd varies directly with temperature, the dummy wire is referred to a! The extension wires may affect the temperature detector is a 2-wire 100 Ω RTD a., frequency is raised applications standardize on three or four leadwire Systems 48 Ω ( )! ) preparation 300° c B. dec 28,2020 - Test: Zener Diode | 10 questions MCQ Test has of. To temperature linearity of the temperature of a length of wire with the variation of resistance at 35°C developed! Engineering- 14 | 100 questions MCQ Test has questions of electrical Engineering ( EE ) preparation devices that detect conditions... 3 or 4 wires the metal with the variation of the temperature of amount! Hot filament of the amount of heat is required Diode | 10 questions MCQ Test has questions of electrical,. Expression assumes, when not in use the devices that sense changes resistance!

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