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