MCQs: There are two types of coils employed in the system, . The ECG system is shown on Figure 1. Electronics & Instrumentation MCQ question is the important chapter for a Electrical Engineering and GATE students. The unit of the current is ampere. c. Generation of selected path between multiple sources and a single destination d. All of the above. (i) Never connect an ammeter across a source of emf (ii) No need to observe the correct polarity [05S01] a. The sensor is used to sense the signal from the source. (Backlash may be defined as the maximum The indicated readings were 103 V, 105 V, 104 V, 103 V, 105 V. In this case, the accuracy of the instruments is better than 5%, because the maximum deviation from true value is 5 V. Some transducer types like active transducer and passive transducers are based on whether a power source is required or . To produce high-level source code . The most crucial difference between the active and passive transducer is that the active transducer does not require the external power source for producing the output, whereas the passive transducer requires the additional energy source for working. Derived units C. Base units D. Units used to . Reference . Descriptive Q/A. The exam is closed book - it's just you and your knowledge. Comparator . At such high frequencies it is very difficult for a sound wave to . The delivery of this course is very good. Next MCQ ON Displacement measurement, Strain Measurement, Measurement of Angular velocity, Acceleration measurement Next. •The signal is function of concn of measurand compound. A set of 5 measurements that were recorded at different time instances are 98, 101, 99, 100 and 102. •This changes capacitance b/w diaphragm and a fixed probe, thus generate ac signal, amplified, rectified to dc & displayed on a meter. Mechanical Measurements. Ampere is one of the A. The Share Capital of a company is Rs 10 Cr divided in 10 Lac number of shares. S1: In multimode fiber optics, intensity modulating schemes can be employed. Solution: Based on the self-inductance of an inductive coil, there are four types of inductive transducers available. 3. Human body acts as the source for measurand, and it generates bio-signals. Correctly estimated measurement uncertainty takes into account both random and systematic effects. ANSWER: B. For . These instruments utilize the principle of expansion of wire, heat due to the current being measured, passing through the wire. ANSWER: C. 42. as a passive and active transducer. Practice MCQ Questions for Class 9 Economics with Answers on a daily basis and score well in exams. as a primary and secondary transducer. S2: Schemes using polarizing techniques need birefringent fiber. 2. MCQs: _____ is the maximum difference in output for the same measurand value within the range of a measuring device, one obtained by increasing from zero and other by decreasing from a higher value of the measurand. (c) controlling torque. Precision MCQ Question 1. Definition: A device or instrument that is used to measure the current is called the ammeter. Systematic effects can in principle be corrected and thereby minimized or even eliminated. a) Electronic b) electric c) ionic d) mechanical 2. A mechanical force or displacement being converted into an electrical signal. What is the basic Principle of measurement: It is the physical phenomenon utilized in the measurement. The value of a known voltage source of 100 V source is measured with a voltmeter. Objectives of Inspection. It is a ratio expressing the rate of heat transfer on the body compered to the rate at which it breach through the body itself. Also known as self-powered modes. 6) Cad minus . B) The time required by an instrument to begin to respond to a change in measurand. It is placed between the skin and the electrode. 2. Tracing the source of leakage current . The chapter throws light on surface plates and V-blocks, over which the measurand is inspected. Modulating Sensors uses the measurand to alter the flow of energy from an external source . Example: "Proximity Sensor" includes all sensors that perform non-contact detection. Answer. SITCOE, Yadrav Page 13 Q.20. Measurement is done to know whether the component which has been manufactured is as per the requirements or not. As wise people believe "Perfect Practice . iv) Linear variable differential transducer. Explanation: In direct method, the unknown quantity (measurand) is directly compared against a standard. Hysteresis of an instrument affects its (a) resolution a) Input impedance b) Output impedance c) Measurand d) None of the mentioned Answer: a _____ is the maximum difference in output for the same measurand value within the range of a measuring device, one obtained by increasing . continuous and proportional to the measurand . What is Signal Conditioning? 78 m/s and a pressure of 1. A test during which the output readings are compared with the corresponding standard values of measurand measured by a device is called as Calibration. Calibration involves comparison of a particular instrument with either (i) a primary standard (ii) a secondary standard with a higher accuracy than the instrument to be calibrated or (iii) a . 1. . A) ability of the transducer or sensor to see small differences in reading. ultrasonics, vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz. Many data acquisition applications involve environmental or mechanical measurement from sensors, such as temperature . Explanation: Noise is the unwanted signal at the output due either to internal sources or to interference. Example: body surface or blood pressure in the heart. metrology. Measurand . Pressure Measurement MCQs : This section focuses on the "Pressure Measurement". They are as follows: i) Variable permeability inductive transducer. Electrical Measurements MCQ Questions. Ques.5. . is the discrete nature of the measurement system which will not allow them to follow an exactly continuous change in measurand. 8) Backlash: The maximum distance through which one part of the instrument is moved without disturbing the other part is called as backlash. Uncertainty sources are the cause of deviation of the measured value from the true value. The threshold of the transducer is the smallest change in measurant that will result in a measurable change in the transducer output. •This unequal energies are transmitted to 2 volumes of detector, and pressure difference thus produced causes movement of diaphragm of detector. Modulating Mode. What is the correct definition of resolution? Chapter 2 1. Analog circuits are then used to generate the ratiometric function (A-B)/ (A+B). 83 Name the common source of light used for interferometer . MCQs on Photoelectric Effect: Get access to MCQs on Photoelectric Effect for NEET 2022 with answers. (a) Difference between accuracy and precision (b) Smallest graduation on the scale or dial (c) Visual separation between graduations (d) Difference between the instrument reading and actual dimension 2. What is the basic Principle of measurement: It is the physical phenomenon utilized in the measurement. MCQs. (d) damping torque. The transducer that converts measurand into the form of pulse is called the _____ transducers. Insufficient sensitivity of the null detector. Active transducer b Analog transducer c. Digital transducer d. Pulse transducer . Practice these MCQ questions and answers for preparation of various competitive and entrance exams. D. 20. Note that a transducer and a sensor are not the same. The Story of Village Palampur Class 9 MCQs Questions with Answers. MULTIPLE-CHOICE QUESTIONS. Multiplexers work with _____ a. Analog signal b . Input devices are required components in control systems especially when it comes to automation, as PLC applications require that you know the basics of automation itself before you can even start programming your PLC. Explanation: Standardization of AC potentiometer is done with the help of standard DC source i.e., a standard cell or a Zener source and a transfer . These Multiple Choice Questions (MCQs) should be practiced to improve the Pressure Measurement skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations. For working professionals, the lectures are a boon. measurand. What is a transducer. 1. The primary transducer or sensor is the element that is in contact with the pressure pulse, and generally is a displacement transducer . Leakage Current Measurement in Medical Devices As shown in Figure 1, the LVDT is a position-to-electrical sensor whose output is proportional to the position of a movable magnetic core. Introduction to ECG measurement system. It is defined as the time required for the sensor reading/output to reach to 63.2% of its total step change in measurand. If low it conducts the heat will from surface to center and . Join our Forum. This series of measurements identifies the overall leakage and the source. (i) True, (ii) false c. Both are false d. (i) false, (ii) True 45. The voltage is in the range of 1 mV ~ 5 mV. 8) Helium . Automation, according to Wikipedia, is a technology by which a set of procedures is performed without any human intervention. •1) Active sensors: Require an external source of power (excitation voltage) that provides the majority of the output power of the signal •2) Passive sensors: The output power is almost entirely . Answer.2. An instrument is used to measure a quantity at different time instances, and the expected values of the quantity are to be the same; however, the measured values are different. The function of the data transmission element is ____ a) to transfer data from one element to another . Vera Lucia Da Silveira Nantes Button, in Principles of Measurement and Transduction of Biomedical Variables, 2015. Practice these IC Engine MCQ Questions and Answers on Position Displacement & Speed Sensing with their explanation which will help you to prepare for various competitive exams, placements, interviews etc. Hence the transducer will just convert the energy from one form to another and all the remaining work is done by the additional circuits . By placing the instrument in a controlled environment may also help in reduction of systematic errors. An example will clarify this point. The fact that not all measurands can be D. Both S1 & S2 are false. In a gravity controlled instrument, the deflection angle is proportional A. Measurand B. Offset is the output that will exist when it should be zero. C) algebraic difference between the indicated value and the true or theoretical value of the measurand. . See Page 1. the source address is mcq will not only be a place to share knowledge but also to help students get inspired to explore and discover many creative ideas from themselves.Clear and detailed training . EXAMPLE: For a temperature sensor taken out of an ice bath at 0 °C into a room at 10 °C, it will take exactly one time constant (usually given in seconds) to reach 6.32 °C, which is exactly 63.2% of the 10 °C step change . 26. 7) Krypton 86 . The electrical transducer is a device which can be used to convert a non-electrical physical quality like temperature, sound or light… into an electrical signal such as voltage and current. transducer that converts measurand into the form of pulse is called a. It consists of a hot wire of platinum-iridium (because it can withstand high temperatures of about 300°C without being oxidized), and about 0.2 mm in diameter. an electrolyte or electrode paste is usually employed as an interface between the electrode and the surface of the source of the event. The USP of the NPTEL courses is its flexibility. a) True b) False 1. . The transducer receives the measurand and gives a proportional amount of output signal. Square of the measurand C. sine inverse of measurand D. sine of the measurand. Question 1. A pointer of an instrument once deflected returns to zero position, when the current is removed, due to. Chapter 5 elaborates on angular measurements. Practice these IC Engine MCQ Questions and Answers on Position Displacement & Speed Sensing with their explanation which will help you to prepare for various competitive exams, placements, interviews etc. The measurement is the act or the result of a comparison between an unknown quantity and a known quantity. Its effect is based on electromagnetic mechanisms, which do not need direct coupling with the surface of the material. When the source is kept at 40 cm away, the stopping potential will be. Mock Tests. C. 4. Calculate the face value of share Rs 100 Rs 1000 Rs10 Rs1 56. Which of the following is grown in the rainy season? 8) Helium . Ledger Accounting Equation Trial Balance Journal 55. The transducer is of many types, and they can be classified by the following criteria. 41. The result is expressed as a numerical number and a unit 30. A sensor converts the physical parameter (for example: temperature, blood pressure, humidity, speed, etc.) The courseware is not just lectures, but also interviews. Comparator . a) S1 is true and S2 is false. Supposing It is replaced with a milliammeter of . In the above given example of thermocouple. MCQ on Biomedical instrumentation Branch: EE/EEE/ETC (6TH sem) 1. _____ is the device used to determine the present value of the quantity under measurement. Sine of measurand d) The Square root of the measurand Answer: a Explanation: We know that, . The transducer produces a usable output depending on the measurand. 6) Cad minus . 5) Mercury 198 . It converts a force such as tension, compression, pressure, or torque into an electrical signal that can . 11.what is the importance of the Biot number as used in the Transient Heat Transfer experiment? into a signal which can be measured electrically.Sensor can be defined as an element that senses in one form of energy to produce a variant in same or another form of energy . 5) Mercury 198 . Both are True b. 2. D) total operating range of the transducer. . Calibration involves comparison of a particular instrument with either (i) a primary standard (ii) a secondary standard with a higher accuracy than the instrument to be calibrated or (iii) a . measurand • A sensor converts physical measurand to an electrical output • Sensor requirements • Selective - should respond to a specific form of energy in the measurand • Minimally invasive (invasive = requiring entry into a part of the body) • sensor should not affect the response of the living tissue . Sensor / Transducer: The transducer converts one form of energy to another form usually electrical energy. The Evaluation of Measurement Data - Guide to the Expression of Uncertainty in Measurement (usually referred to as the GUM) provides general rules for evaluating and expressing uncertainty in measurement. Analog signals need to be correctly "prepared" before they can be converted into digital form for further processing.Signal conditioning is an electronic circuit that manipulates a signal in a way that prepares it for the next stage of processing. The ECG system comprises four stages, each stage is as following: (1) The first stage is a transducer—AgCl electrode, which convert ECG into electrical voltage. _____ is the maximum difference in output for the same measurand value within the range of a measuring device, one obtained by increasing . b) Both S1 and S2 are true. According to another definition of transducer can be given as a device, which when actuated by the energy in one form, supplies energy either in the same form or in another form to a second transmission system.. Download Solution PDF. 12. Explanation:-Insufficient sensitivity of the null detector:-If the null detector is an ammeter, and if the imbalance current is few mA and if the meter is not able to measure the same, it will indicate null balance.If the detector is a voltmeter and if the potential difference is very small and the voltmeter is not able to read the same . To sort out the poor quality of manufactured products and thus to maintain standards. It is the process by which one can convert physical parameters . D: threshold. 6.1.2.2.1 Electronic pressure transducers. Example: Photovoltaic cell is a generating sensor because it provides an output voltage related to its irradiation, without any additional external energy source. (a) action of gravity. c) S1 is false and S2 is true. When a measurand, y, is calculated from other measurements through a functional relationship, uncertainties in the input variables will propagate through the calculation to an uncertainty in . If energy kind of quantity measured, there must be a unit to measure it. IC Engines Multiple Choice Questions on "Measurement of Pressure". Accuracy describes the algebraic difference between the indicated value and the true or . - (A) Linearity - (B) Hysteresis. Precision is referred as the closeness of two measurements to one another while accuracy refers to the closeness of the measurement from the standard or known value. Answer: B. digital; active; . The chapter ends with a detailed explanation of slip gauges. Leave a Comment / MCQ / By Ajay Sharma. Measurand . Dear Ahmed, A load cell is a type of transducer, specifically a force transducer. The sensing elements sense the condition, state or value of the process variable by extracting a small part of energy from the measurand, and then produce an output which reflects this condition, state or value of the measurand, Because of this energy extraction or utilization, the measured quantity is always disturbed by the act of measurement . In which of the following books, transactions are first time recorded? Measurand: The measurand is the physical quantity, and the instrumentation systems measure it. Supplementary units B. If you have any Questions regarding this free Computer Science tutorials ,Short Questions and Answers,Multiple choice Questions And Answers-MCQ sets,Online Test/Quiz,Short Study Notes don't hesitate to contact us via Facebook . The major feature of systematic errors is that the sources of errors are recognisable and can be reduced to a great extent by carefully designing the measuring system and selecting its components. 7) Krypton 86 . The thermocouple acts as a transducer but the additional circuits or components needed like the voltmeter, a display etc together from a temperature sensor.. B) ability of the transducer or sensor to see small differences in reading. Its power consumption is 0.1 mw. Download Solution PDF. Accuracy MCQ Question 9 Detailed Solution. 3. The first measurement can be made on the main conductor to the panel. The science of measurement is known as metrology. Due to this couplant-free feature, EMATs are particularly useful in harsh, i.e., hot, cold, clean, or dry environments. A. MCQ (Multiple Choice Questions with answers about Biosensors. . It discusses the scaled, vernier, and micrometer instruments in detail. ii) Variable reluctance inductive transducer. 2. 10. MCQ on RENEWABLE ENERGY SOURCES Amit | LWG March 10, 2021 Read More » It has 40 multiple choice questions, and you must get 28 correct, or 70% to pass. Option (1) Explanation -The unit of measurement can be precise but not accurate. By practicing these MCQs of Physiological Transducers ( Biomedical Instrumentation ) MCQs - Latest Competitive MCQs , an individual for exams performs better than before.This post comprising of objective questions and answers related to " Physiological Transducers ( Biomedical Instrumentation ) Mcqs ".

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