A resistive transducer is mainly used in the calculation of temperature, displacement, pressure, force. Vertical. Definition and General Concept of Transducer Definition The transducer is a device which converts one form of energy into another form. 50+ MCQ with answer and reasoning 36) If the ambient temperature is doubled and pressure fluctuates, then the transmission time of radar through air is a. The capacitive transducer or sensor is nothing but the capacitor with variable capacitance. A. b. Phototransistors . LDR’s are also called _____ a) Photo voltaic cell b) Photo resistive cell c) Photo emissive cell d) All of the mentioned 19. 3. Distance between the two parallel plates. B. Potentiometer. 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? 35. MCQ in AC-DC circuits ; MCQ in Resistors ; MCQ in Inductors ; MCQ in Capacitors ; Continue Practice Exam Test Questions Part 8 of the Series. C. Linear variable differential transformer (LVDT) D. Photodiode. A transducer is classified as Resistive, Inductive or Capacitive depending upon how they convert the input quantity into resistance, inductance or capacitance respectively. Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. Resistance Hygrometer – The change in … These transducers require external power source for energy conversion. ? Q2) Optical sensors used for the displacement measurement works on the principal that. 1. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … B. 30,000 lux. 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 ? 2. A. The strain gauge, photoresistor, photodiode, phototransistor, and thermistor come under resistive type passive transducers. What Are The Advantages And Disadvantages Of Potentiometer? 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. MCQ Topic Outline included in ECE Board Exam Syllabi . Resistive sensors are among the most common in instrumentation. 35) The transducer used for the measurements is / are a. The earthing rod orientation in the pit should be: 45° Horizontal; Vertical; 75° Correct answer: 3. Small piezoresistors attached to the structure undergo the same mechanical strain. Current lags behind the voltage by 90 o. The transducer works on the principle of the length of the conductor. ANSWER: Inductive transducer. Ground resistance value for sensitive installations is: Less than 5 ohms; 5 – 25 ohms; 50 ohm; 100 ohms; Correct answer: 1. 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. It is a passive transducer that means it requires external power for operation. Transducrs MCQ Questions 1. Almost unaffected and remains same b. photoelectric transducers? A. The capacitive transducer works on the principle of variable capacitances. Applications of LVDT. AC Circuit - Resistive Circuit objective questions (mcq) and answers; 1. B. Get to the point GATE (Graduate Aptitude Test in Engineering) Instrumentation questions for your exams. Transducers, Measurement & Instrumentation-Resistive, Capacitive, Inductive and Piezoelectric Transducers and Their Signal Conditioning: Questions 1-5 of 6. One-half of . It is otherwise called as resistive sensors. Double. They have a common working principle, which states that the measured parameter results in a small change in the resistance of a transducer. The return point in a circuit, where all voltage measurements are referred. Q1) The detectors used in optical sensors is. Resistance Thermometer – The change in resistance of metal wire due to the change in temperature known by the measurement of temperature. 1 and 2, a pressure resistive transducer 10 of the present invention is shown. For example resistive capacitive inductive transducers. Capacitive Transducer Definition: The capacitive transducer is used for measuring the displacement, pressure and other physical quantities. They can be used for measuring various physical quantities like temperature, pressure, displacement, force, vibrations etc. 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. C. One-fourth. Resistive Transducers 1. The capacitance of a passive capacitance transducer depends on the following factors, except? Resistive Transducers-related Conferences, Publications, and Organizations. MCQ on Electrical Earthing. The temperature effects transducers. Start your Research Here! 16. Q6. Answer : Advantages : Inexpensive May 21, 2018 - Practice Resistive Transducers objective questions and answers, Quiz & MCQ to crack any sort of interviews, competitive exams and entrance tests. Transducers, Measurement & Instrumentation: Questions 1-5 of 13. Referring now to FIGS. B. 5. It measures temperature, pressure, displacement, force, vibrations, etc. 451. The most commonly used type of transducer is variable resistance transducer. Q5. Resistive Transducers Information on IEEE's Technology Navigator. 2. Sunlight corresponds to about. A. In a pure resistive circuit. 351. Strain gauge. Less than 5 ohms. Intensity of light increases with … Resistive Transducer Resistive transducers are those in which the resistance change due to the change in some physical phenomenon . Transducers Prof. B. D. Kanani, EE Department Electrical Measurements and Measuring Instruments (2130903) 1 5.1. Question 38. to understand the working principle, consider a conductor rod. Resistive Sensors 1. a) X ray b) Gamma ray c) Alpha and beta rays d) None of the mentioned 18. 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