It is otherwise called as resistive sensors. Transducrs MCQ Questions 1. 35. These transducers require external power source for energy conversion. Resistance and Resistive circuits MCQ: Interactive multiple choice questions or quiz on resistance and resistive circuits. The capacitive transducer works on the principle of variable capacitances. Choose the letter of the best answer in each questions. Resistive transducer. The variable resistance transducers are one of the most commonly used types of transducers. The earthing rod orientation in the pit should be: 45° Horizontal; Vertical; 75° Correct answer: 3. Resistive Type of Sensors - Their Analysis and Applications Debasmit Das 10115039 Batch : E3 2. Transducer Output is Proportional to the Displacement. Basically a resistance potentiometer, or simply a POT, (a resistive potentiometer used for the purposes of voltage division is called a POT) consists of a resistive element provided with a sliding contact. B. 2. 1 and 2, a pressure resistive transducer 10 of the present invention is shown. B. In a pure resistive circuit. c. Laser. The change in resistance of a metal wire owing to strain is due to S1: Change in dimension of wire expressed by factor (1-2µ) S2: Change in resistance ? 3. One-half of Your Comments. MCQ on Electrical Earthing. Vertical. The strain gauge, photoresistor, photodiode, phototransistor, and thermistor come under resistive type passive transducers. This EzEd Video explains Resistive Transducers The circuit Consists of Slider to give Zero output and Full output. 50+ MCQ with answer and reasoning AC Circuit - Resistive Circuit objective questions (mcq) and answers; 1. May 21, 2018 - Practice Resistive Transducers objective questions and answers, Quiz & MCQ to crack any sort of interviews, competitive exams and entrance tests. The dynamic response is limited. ? For example, a photocell (LDR) is a passive transducer which will vary the resistance of … Ground resistance value for sensitive installations is: Less than 5 ohms; 5 – 25 ohms; 50 ohm; 100 ohms; Correct answer: 1. Intensity of light increases with … Pressure transducer for measuring blood pressure is a) Strain gauge transducer only b) Strain gauge or capacitive transducer c) Resistive transducer d) Fiber optic transducer Ans : (b) 36. 30,000 lux. It is a passive transducer that means it requires external power for operation. A. C. One-fourth. to understand the working principle, consider a conductor rod. Capacitive Transducer Definition: The capacitive transducer is used for measuring the displacement, pressure and other physical quantities. a. Photodiodes. B. Potentiometer. Passive Transducers Resistive Transducers. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. Referring now to FIGS. The return point in a circuit, where all voltage measurements are referred. photoelectric transducers? Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. LDR’s are also called _____ a) Photo voltaic cell b) Photo resistive cell c) Photo emissive cell d) All of the mentioned 19. ANSWER: All of these. 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) Passive transducer d) Self generating transducer Ans : (c) 2. They can be used for measuring various physical quantities like temperature, pressure, displacement, force, vibrations etc. They produce an output signal in the form of some variation in resistance, capacitance or any other electrical parameter, which than has to be converted to an equivalent current or voltage signal. The transducer works on the principle of the length of the conductor. Piezoresistive transducers are based on the idea that a mechanical input (pressure, force, or acceleration for example) applied to a mechanical structure of some kind (a beam, a plate, or a diaphragm) will cause the structure to experience mechanical strain. In such transducers electrical parameters i.e resistance inductance or capacitance causes a change in voltage ,current or frequency of the external power source. The capacitive transducer comprises of two parallel metal plates that are separated by the material such as air, which is called as the dielectric material. Question 38. Small piezoresistors attached to the structure undergo the same mechanical strain. a) X ray b) Gamma ray c) Alpha and beta rays d) None of the mentioned 18. Semiconductor layer using silicon and germanium is known as _____ a) Photo diodes b) Photo junction diodes a. Q5. The capacitive transducer or sensor is nothing but the capacitor with variable capacitance. The following are resistive passive transducers, except? Applications of LVDT. A. B. Examples: Mechanical transducer and Electrical transducer Electrical Transducer ANSWER: Inductive transducer. 35) The transducer used for the measurements is / are a. MCQ ON DISPLACEMENT MEASUREMENT,STRAIN MEASUREMENT,MEASUREMENT OF ANGULAR VELOCITY,ACCELERATION MEASUREMENT. Resistive sensors are among the most common in instrumentation. The capacitance of a passive capacitance transducer depends on the following factors, except? CLASSIFICATION OF PASSIVE TRANSDUCERS 17. Transducers which require an external power source for their operation is called as a passive transducer. Resistive Transducers 1. Q.127.The transducers used for measurement of linear displacement are (a) strain gauges and resistive potentiometers (b) LVDTs, capacitive transducers and Hall effect transducers (c) thermocouples, thermistes and RTDs (d) both (b) and (c) Q.128.Which of the following additional is required for measuring pressure with piezoelectric crystal? B. For example resistive capacitive inductive transducers. Less than 5 ohms. One-half of . They can be used for measuring various physical quantities like temperature, pressure, displacement, force, vibrations etc. The working of a resistive transducer can be explained by considering a conductor rod as the transducer. Acting as a secondary transducer, LVDT can be used as a device to measure force, weight & pressure etc. 16. A resistive transducer is mainly used in the calculation of temperature, displacement, pressure, force. Double. Answer : Advantages : Inexpensive Resistive Sensors 1. Definition and General Concept of Transducer Definition The transducer is a device which converts one form of energy into another form. b. Phototransistors . The temperature effects transducers. Current lags behind the voltage by 90 o. Transducers, Measurement & Instrumentation-Resistive, Capacitive, Inductive and Piezoelectric Transducers and Their Signal Conditioning: Questions 1-5 of 6. What Are The Advantages And Disadvantages Of Potentiometer? Q1) The detectors used in optical sensors is. Transducers Prof. B. D. Kanani, EE Department Electrical Measurements and Measuring Instruments (2130903) 1 5.1. C. Linear variable differential transformer (LVDT) D. Photodiode. The variable resistance transducers are also called as resistive transducers or resistive sensors. Resistive Transducer Resistive transducers are those in which the resistance change due to the change in some physical phenomenon . A. 5. Your name: Your Email: Your Comments: 2. In a purely resistive, the average power P av is.....the peak power P max. MCQ in AC-DC circuits ; MCQ in Resistors ; MCQ in Inductors ; MCQ in Capacitors ; Continue Practice Exam Test Questions Part 8 of the Series. The LVDT can be used in all applications where displacement ranging from fractions of a few mm to a few cms have to be measured. A. They have a common working principle, which states that the measured parameter results in a small change in the resistance of a transducer. 36) If the ambient temperature is doubled and pressure fluctuates, then the transmission time of radar through air is a. … B. Transducers, Measurement & Instrumentation: Questions 1-5 of 13. Resistance temperature detectors b. Thermistors c. Ultrasonic d. All of these . The POT is a passive transducer. Start your Research Here! Resistance Hygrometer – The change in … Introduction A resistive sensor is a transducer or electromechanical device that converts a mechanical change such as displacement into an electrical signal that can be monitored after conditioning. Almost unaffected and remains same b. 2. 1. A. node. 50,000 lux. The area of the two parallel plates They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, electrokinetic and optical. Q2) Optical sensors used for the displacement measurement works on the principal that. Q6. It measures temperature, pressure, displacement, force, vibrations, etc. Resistive Transducers Information on IEEE's Technology Navigator. D. Equal to View Answer. Resistance Strain Gauge – The change in value of resistance of metal semi-conductor due to elongation or compression is known by the measurement of torque, displacement or force. 451. Resistive Transducers-related Conferences, Publications, and Organizations. d. Only (a) and (b) e. All the above. A. Distance between the two parallel plates. Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. Sunlight corresponds to about. Strain gauge. MCQ Topic Outline included in ECE Board Exam Syllabi . Resistance Thermometer – The change in resistance of metal wire due to the change in temperature known by the measurement of temperature. MCQ in Transducers ; MCQ in Motor Speed Control Systems ; MCQ in Robotic Principles ; MCQ in Bioelectrical Principles ; MCQ in Instrumentation and Control; MCQ in Sensors; MCQ in Optoelectronics devices ; Continue Practice Exam Test Questions Part 10 of the Series. The most commonly used type of transducer is variable resistance transducer. Choose the letter of the best answer in each questions. 351. INSTRUMENTATION IMPORTANT MCQ ON TRANSDUCERS FOR BARC ISRO ESE PSUS PREPARATION FOR ECE IN EEE ... Resistive & Inductive Transducer - PhotoTransistor - Duration: 18:38. 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