The main electrical displacement transducers work on the principle of. Modern moving iron instruments have a d.c. an error of 2% or less. When stress is applied to a strain gauge, the resistance of the strain gauge changes and unbalances the Wheatstone bridge, resulting in a signal output (voltage) that is proportional to the stress. Distance between the two parallel plates . advertisement. 317.  A load cell is a transducer. D. zero, zero The radiation emitted from the patient … Read More The post The Instrumentation for the Medical Use of Radioisotopes Diagnosis appeared […], Answers have been provided at the end. Q2. When the length of the tube becomes longer, it cannot be handled conveniently. These strain gauges are typically used as elements in a Wheatstone bridge circuit, which is used to make the measurement. Variable resistance: transducer is a strain gauge. Also, to reduce the surface tension and capillarity effects. The output across secondary of this transformer is the differential thus it is called so. The measurement range of nickel-nichrome thermocouple is from 600°C to 1000°C. Compression tension cells are used for measurement of a straight-line force ‘pushing together’ along a single axis; typically annotated as the negative force. (A) Displacement (B) Velocity (C) Acceleration (D) All of these. 21. To practice all areas of IOT, here is complete set of 1000+ Multiple Choice Questions and Answers. Load cells typically contain multiple strain gauges aligned and wired in a Wheatstone bridge circuit. Q17. The following are the major functional physiological systems of the body except? 2. The actual value of limiting error can be expressed as Q7. Subject: Metrology and Quality Control 2. In the figure, the pressure at the point above atmospheric pressure is: Low Power Consumption: Most LVDTs consume Less than the watt of power. important short questions and answers transducers study. Q6. Variable capacitance: transducer is a parallel plate capacitor with a variable gap A. MCQ Questions for Entrepreneurship Development. By practicing Class 6 Civics Chapter 5 MCQ with Answers, you can score well in the exam. The height of the liquid in the tube above any point in the fluid indicates the pressure of the liquid at that point. Show Explanation b) Noise figure of more than 0 db. To undertake c. To choose d. To decide Ans: b. The accuracy of a 0-100 mV voltmeter is ±5%. Total radiation pyrometers are used to measure temperature in the range 700°C to 2000°C. The tube is kept vertical and its other end is open to atmosphere. Shear-cell types for load sensors can be the shear beam, bending beam, or single-point bending beam. Thus applications of pyrometer are found in measuring the temperature of molten metals, the interiors of furnaces or the interiors of volcanoes. 1) The scale of the moving iron instruments is not uniform and is cramped at the lower end. Multiple Choice Question (MCQ) of Electronics page-17:241. D. Mass of the two parallel plates. Menu. Here LVDT is called secondary transducer. Q16. Strain gauges are made up of a long, thin strip of conductive material arranged in a zigzag manner. A lead thermometer may be used to measure temperature as low as -250°C and below these temperature constant and manganin thermometers are used. For strain gauge devices, strain gauges (strain-sensitive variable resistors) are bonded to parts of the structure that deform when making the measurement. Principles of Marketing Multiple Choice Questions Books. The term “Entrepreneur” has been derived from the word “entreprendre” which means: a. When the length of the tube becomes longer, it cannot be handled conveniently. The term LVDT stands for the Linear Variable Differential Transformer.It is the most widely used inductive transducer that converts the linear motion into the electrical signal.. Strain gauges typically require an excitation voltage and provide output sensitivity proportional to that excitation. The photoconductive materials most frequently used include cadmium sulfide (CdS) and cadmium selenide (CdSc). The piezometer tube is a vertical glass tube inserted in the wall of a pipe or a vessel containing the liquid whose pressure is to be measured. C, Q16. Comparing two voltages. Electronics and Instrumentation Multiple Choice Questions(MCQs) & Answers for competitive exams. Piezoelectric Strain gauge-based load cells have a sensing junction/element that when loaded responds to the load by producing an electrical output. a) . Bioelectric measurements are usually … Read More The post Types of Amplifiers used in Biomedical Measurement Applications appeared first […], Radioisotopes diagnosis technique helps in obtaining image of the body anatomy and functions. a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. As we know that displacement is a vector quantity representing a change in position of a body or a point with respect to a reference. Electrical Instruments MCQ Objective questions & answers are available for an Electrical Engineering students to clear various technical interview, competitive examination, and another entrance exam. The photoconductive cell is a  two terminal semiconductor device whose resistance varies inversely with the intensity of light that falls upon its photosensitive material shows a typical photoconductive cell and the schematic symbol. D, Q7. Ea = 100 ± 5 141) The resistances of the various arms of Wheatstone bridge are P = 500 ohm, Q = 50 ohm, R = 1010 ohm and S = 100 ohm. The emf of the batter is 5 V and the current sensitivity of … C. Linear variable differential transformer (LVDT) D. Photodiode. Answer.4. The force is associated with a deflection as a result of calibration. All the following are methods of blood pressure measurement, except? A solar cell or photovoltaic cell is a device that converts light energy into electrical energy. C, Q2. Q7. The recorded representation of bioelectric potentials generated by the activity of the brain (Neuronal activity. [Passive] [Active] [NONE OF THESE] 7 people answered this MCQ question Passive is the answer among Passive,Active,NONE OF THESE for the mcq LVDT used for displacement measurement is a/an _____ transducer The force is associated with a deflection as a result of calibration. Induced voltage by the applied magnetic field C. Movement of charge carriers towards one end D. All of the above A. Least expensive instrument for dc measurements is, Answer.3. An ideal amplifier has. The capacitance of a passive capacitance transducer depends on the following factors, except? Q19. These devices are also called photoresistive cells or photoresistors since the change in conductivity appears as a change in resistance. what are the advantages of lvdt quora. Schering bridge 2. Answer.1. These short solved questions or quizzes are provided by Gkseries. There are two stages of transduction, firstly the pressure is converted into a displacement by the Bourdon tube then the displacement is converted into analog voltage by LVDT. Q8. Control Systems Interview Questions ; Question 43. Part 2: List for questions and answers of Metrology and Quality Control. Electrocardiograph (ECG) is a graphic recording or display of the time variant produced by the heart during the cardiac cycle, true or false? a.) Try the following questions to test your knowledge of Chapter 3. The piezometer tube is a vertical glass tube inserted in the wall of a pipe or a vessel containing the liquid whose pressure is to be measured. MCQ quiz on Arduino multiple choice questions and answers on Arduino MCQ questions quiz on Arduino objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams. Professionals, Teachers, Students and Kids Trivia Quizzes to … B. Answer.4. High temperature: A mercury thermometer (boiling point of mercury is 357°C) can be used to measure temperature upto 300°C. This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Transducers”. LVDT which is an instrument for the measurement of displacement, works on the principal of a. δE = ± 5% of 100 Also, to reduce the surface tension and capillarity effects. The outputs from the Bioelectrodes/transducers are then converted into an electrical quantity that … Read More The post The Functions of Signal Conditioners in Biomedical Measurement Systems appeared […], Table Of Contents Carrier Amplifiers Chopper Amplifiers Isolation Amplifiers Optical Isolation Instrumentation Amplifiers Key Characteristics of Instrumentation Amplifiers Reasons why Instrumentation Amplifiers are Preferred in Biomedical Applications Signal amplification is essential part of any biomedical measurement. All semiconductors can be considered as photoconductors. Ques.64. C, Q20. This is because any semiconductor will produce electron-hole pairs (EHP) when it is irradiated by electromagnetic radiation of the optical frequencies. Check the below NCERT MCQ Questions for Class 9 English Beehive Chapter 9 The Bond of Love with Answers Pdf free download. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. 5) There is a difference between a.c and d.c calibrations on account of the effect of the inductance of the meter. In this page you can learn various important measuring instruments multiple choice questions answers,mcq on electrical measuring instruments with answers,mcq on instrumentation and measurement,sloved electrical measuring instruments objective questions answers, instrumentation multiple choice questions answers etc. Low temperature: For measurements of low temperatures upto −250°C constant volume hydrogen thermometers are used and for measure merits below -250°C upto -270°C hydrogen is replaced by Helium. A. constant, constant. A. PHOTOCONDUCTIVE CELLS All of the given option are correct 105 mV or 95 mV ANSWER: Mutual inductance 318. Bioelectric potentials are ionic voltages produced when special types of cells perform electrochemical activities. The most used piezoelectric materials are PZT, a ceramic containing lead titanate and lead zirconate and PZLT, a ceramic of lead-lanthanum-zirconate-titanate. Q9. Low temperature: as low as −30°C (freezing point of mercury is −39°C) can be measured using mercury and as low as -100°C can be measured by using alcohol (Remains liquid upto-130°C) in glass thermometers. On this page you can read or download health promotion questions and answers mcq in PDF format. How does the value of mutual inductance vary between two coils of an inductive transducer? Photoconductive cell A. Lvdt Questions And Answers transducer mcqs with answers. Repulsion type Moving instruments— These instruments are based on the principle of repulsion between the two iron pieces similarly magnetized. Variable inductance: transducer is a linear variable differential transformer The capacitance of a passive capacitance transducer depends on the following factors, except? Explanation:- Q4. Biopotentials are ionic voltages produced when certain types of cells carry out electrochemical activities, true or false? Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight, while the term photovoltaic cell is used when the light source is unspecified. Your name: Your Email: Your Comments: 27. Answer.2. Since deflection θ is proportional to the square of current through the coil, therefore scale of such instruments in non-uniform being crowded in the beginning. Thermoelectric pyrometer The linear variable differential transformer transducer is A. Inductive transducer B. Non-inductive transducer C. Capacitive transducer D. Resistive transducer It is used to create an electrical signal whose magnitude is directly proportional to the force being measured. The: Q12 technologies are piezoelectric and strain gauge effect, the deflecting torque is not uniform and is at! Areas of IOT Multiple Choice Questions and answer in one PDF be linear or angular ( rotational motion. Frequencies in the form of light, heat, pressure, moisture, or shear metals. 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