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