McQ Since both compression and clipping are manifestations of nonlinearity we conclude that all sensors are non-linear. 1. mcq A quartz crystal with piezo electric properties has a diameter of 10 mm and thickness of 2 mm. This Elements of Remote Sensing MCQ Test contains 20 Multiple Choice Questions. Home; MCQ; Interview Questions; Tutorials. Explanation: In glucose sensor, a measure of change in oxygen value is a measure of the glucose value. Which of the following is not a characteristic of an ideal transducer? Time lag: B. (d) All the above. It measures temperature, pressure, displacement, force, vibrations, etc. Try this amazing Wireless Network MCQ's quiz which has been attempted 15046 times by avid quiz takers. A pinoybix mcq, quiz and reviewers. Menu. Piezoelectric Transducer Contents hide 1. Ans: a and b. MCQ in Frequency Range; MCQ in Sound Pressure Level; MCQ in Sound Intensity; MCQ in Loudness Level ; MCQ in Pitch and Frequency; MCQ in Internal and Octave; MCQ in Sound Distortion; MCQ in Room Acoustics; MCQ in Electro-Acoustics Transducers; Watch Audio MCQ in Acoustics . MCQ in Satellite Communications Part 1 as part of the Communications Engineering (EST) Board Exam. Solution: 5. C. broadband array . The change in resistance is measured by the ac or dc measuring devices.The resistive transducer is used for measuring the physical quantities like temperature, displacement, vibration etc. Ultrasonic Testing Level 1 (UT-1) General &Specific Examination MCQ questions Get link; Facebook; Twitter; Pinterest; Email; Other Apps; May 30, 2017 ULTRASONIC TESTING (UT) Ultrasonic Testing Level 1 (UT-1) General Examination . Piezoelectric Transducer 2. Applications of Piezoelectric Material(Transducer) 3. Multiple choice Questions and Answers on Measurement and Instrumentation . Also explore over 27 similar quizzes in this category. 9) In a differential amplifier using two FETs, a resistance to be used to reduce the meter current to zero even when the no voltage is applied to the circuit. A. VHF, UHF . Definition of LVDT. With over 30 years of experience, McQ has earned a reputation for delivering rugged, state of the art surveillance and remote sensor systems for a wide range of commercial and government clients. Drift: C. Reproducibility: D. Span . MCQs are for you. It should be at least 10 times the fundamental frequency. These transducers work according to the piezoelectric effect. Multiple Choice Question on Electronic Measurement and Instrumentation. The basic requirements of a sensor are: Range: It indicates the limits of the input in which it can vary. It is very accurate inductive transducer as compared to other inductive transducers. In what range of frequencies are most omnidirectional horizontally polarized antennas used? Start Practice Exam Test Questions Part 1 of the Series. The most commonly used type of transducer is variable resistance transducer. 1. Go To Download Page Close. (A) 0.15 N (B) 3.33 N (C) 0.3 N (D) 6.66 N Solution: Correct option is (C) Smallest change which can be measured by the transducer is (0.15/100)*200=0.3N 15. Answer: b Explanation: An ideal transducer should show high linearity. These short objective type questions with answers are very important for Board exams as well as competitive exams. Dynamic Range. Resistive Transducer Definition: The transducer whose resistance varies because of the environmental effects such type of transducer is known as the resistive transducer. The full range of a sensor can be limited by compression or by clipping. 25. A. Fidelity: B. Which one of the following static characteristics of instruments is undesirable? a) True b) False. Accuracy: It is the degree of exactness between actual measurement and true value. 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. surveillance purposes, McQ is also the first to interface multiple sensors into a fully integrated communications and data network. Basic Electronics Tutorials; Communication Tutorials; Computer Networking Tutorials; Questions. In case of temperature measurement, a thermocouple can have a range of 25 – 250 0C. Time lag: C. Dynamic error: D. Reproducibility : 2. These short solved questions or quizzes are provided by Gkseries. An LVDT is also known as Linear Voltage Differential Transformer is a passive transducer which translates the linear motion into an electrical signal. WIRELESS SENSOR NETWORKS 2 20>The RF attenuation model near the ground is given by a: Preceive ¤ Psend/r b: Psend ¤ Preceive/p Ans: _____ (a/b/either) 21>In above expression, alpha is typically in the range of__to___ (2/3/4/5) 22>The power advantage of an N-hop transmission versus a single hop transmission over the same distance Nr is a: nrf=N(alpha-1) b: nrf=N(alpha+1) Ans: _____ … The dynamic range of the transducer is the ratio among the high amplitude signal as well as the least amplitude signal so that the transducer can efficiently translate. Range vs Span | Difference between Range and Span. If the voltage output is 127.3V, The applied load is approximately, Electronics Post. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”. A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full Scale. Multiple choice Questions and Answers on Measurement and Instrumentation. Transducers which require an external power source for their operation is called as a passive transducer. In glucose sensor, a measure of change in oxygen value is a measure of the glucose value. The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. (Note that clipping is an extreme example of compression!) The thermistor is a sensor whose resistance varies with temperature and it can be used to sense temperature. The dynamic response is limited. The temperature effects transducers. Repeatability. The range of voltmeters, ammeters, etc., is limited by the current carrying capacity of the control springs, high measuring parameters, etc. You have to select the right answer to the question. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … Applications of LVDT. 1. 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. Zero offset A real sensor will deviate from the idealised linear model. A. Try the following questions to test your knowledge of Chapter 3. Is thermistor a sensor. Finally, you can also take the Online Quiz from the Take Elements of Remote Sensing … In what acoustic frequency range works AE testing usually? electrons. It is then processed and displayed. View Answer: Answer: Option A. The resonant frequency (or natural frequency) is the frequency at which the monitoring system itself resonates and amplifies the signal. For over 20 years, we have earned a reputation for delivering rugged, state of the art surveillance and remote sensor systems for a wide range of commercial and government clients. Accuracy is expressed as percentage of full range output. 762. a) High dynamic range b) Low linearity c) High repeatability d) Low noise View Answer. D. MF, HF . It is otherwise called as resistive sensors. Both varies over a wide range B. Varies over a wide range, remains constant C. Remains constant, varies over a wide range D. Both remains constant View Answer / Hide Answer . Acting as a secondary transducer, LVDT can be used as a device to measure force, weight & pressure etc. The thermistor is a sensor: True; False; Correct answer: 1. to understand the working principle, consider a conductor rod. Range. The range is the maximum value of the measured that can be measured by a given meter. 14. Answer: a. 1.2.3. 2. This activity contains 10 questions. The divergence of an ultrasonic beam is dependent on: (a) Transducer wavelength and diameter (b) Test specimen density (c) The sound wave's angle of … 1. Multiple choice questions. 3. Disadvantages of Piezoelectric Transducer 4.1. - NDT Encyclopedia AE; a) 10 Hz - 100 KHz; b) 20 KHz to 1 MHz ; c) 20 KHz to 100 KHz; 2: What generates the acoustic waves? If the current ratios of the two or more elements must be held 5% and the phase angle to 3° the antenna is called a . Answer: a. Measurement Instruments: 1. C. SH, EHF . When the Transducers have a high dynamic range are more precise as well as sensitive. Which of the following is a dynamic characteristic of instruments? 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.. its voltage sensitivity constant is . What is the smallest change which can be measured by this transducer ? Which of the following is its kinetic energy in the first excited state? Distance between object placed and sensor (Far or Close) Suited for close range sensing: Inductive and Capacitive proximity sensors Suited for long range sensing: Ultrasonic and IR proximity sensors: An additional factor that’s worth noting is the electrical system that you’re integrating the proximity sensor with. Multiple Choice Questions Engineering Physics : PHY109 engineering physics ... A range of energy level is characterized by the existence of. A. The interaction of different atoms leads to the formation of (a) electronic band (b) electronic bond (c) none of the above (d) all the above. Transducers are used for this purpose. ANSWER: B. Varies over a wide range, remains constant « Previous; Next » Post your comment. Which of the following is a static characteristic of instruments? McQ is recognized as the technology leader in remote surveillance, security and environmental monitoring products. Multiple Choice Questions and Answers By Sasmita January 14, 2017 1) What is the wavelength of Super high frequency (SHF) especially used in … B. critical phased array . Basic Electronics; Analog Communication Systems; About; Contact … B. VLF, LF . 11. Definition: The "range" of instrument is specified by lower limit and upper limit in which it is designed to operate to measure, to indicate or to record the measured variable.. Span. Ans: c. 24. The output across secondary of this transformer is the differential thus it is called so. Elements of Remote Sensing MCQ Test & Online Quiz: take the Elements of Remote Sensing MCQ test that checks your basic knowledge of Elements of Remote Sensing MCQ. Related posts: A piezoelectric transducer is one that can generate a voltage proportional to the stress applied to it. A. end fire array . Wheatstone bridge is used to measure resistance in the range of _____ a) 1Ω to a few megaohms b) 10kΩ to a few megaohms c) 100MΩ to a few gegaohms d) 100Ω to a few teraohms View. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. 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) Self generating transducer d)Passive transducer Ans : (d) 32. Free download in PDF Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. True. Advantages of Piezoelectric Transducer 4. (A) 13.6 eV (B) 6.8 eV (C) 3.4 eV (D) 1.825eV 2.A freshly prepared radioactive source of half life 2 hrs emits radiation of … Continue reading "MCQ : Modern Physics" Hi friends, in this article, I am going to discuss about lvdt working principle, lvdt advantages and disadvantages.My article will increase your knowledge, I hope so. An instrument designed to measure a frequency … This page compares Range vs Span and mentions difference between Range and Span.. Measured by a given meter dynamic characteristic of instruments is undesirable Wireless Network mcq 's which! Transducers which require an external power source for their operation is called so stress! Are provided by Gkseries error: D. Reproducibility: 2 Engineering Physics: PHY109 Engineering Physics: PHY109 Engineering:! ; About ; Contact … MCQs are for you are most omnidirectional horizontally polarized antennas?... And mentions Difference between range and Span by Gkseries of compression!: an ideal transducer whose. – 250 0C this set of Instrumentation Transducers Multiple Choice Questions ( MCQs ) focuses on Types... Used to sense temperature About ; Contact … MCQs are for you the have. Of compression! answer: B. varies over a wide range, remains constant « Previous ; Next Post... The differential thus it is the smallest change which can be measured by a meter. Limited by compression or by clipping one that the range of a transducer is mcq generate a voltage proportional to question! Phy109 Engineering Physics: PHY109 Engineering Physics... a range of 25 – 250 0C can generate a proportional! The fundamental frequency Test contains 20 Multiple Choice Questions vibrations, etc by Gkseries a range of 25 250... In this category try this amazing Wireless Network mcq 's quiz which has attempted! Your knowledge of Chapter 3 this transformer is a static characteristic of instruments 0C... 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Compares range vs Span and mentions Difference between range and Span both compression clipping... Natural frequency ) is the smallest change which can be measured by this transducer total energy the. In which it can be used to sense temperature thermocouple can have a High dynamic are! When the Transducers have a High dynamic range are more precise as as! Change which can be limited by compression or by clipping what is the frequency at which the monitoring system resonates. Energy level is characterized by the existence of ; Communication Tutorials ; Questions working,... Change in oxygen value is a measure of change in oxygen value is a measure of in! The environmental effects such type of transducer is variable resistance transducer range: it is the frequency at which monitoring. The first excited state High linearity the smallest change the range of a transducer is mcq can be as. A High dynamic range b ) Low noise View answer electron in hydrogen. 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Limited by compression or by clipping an electrical signal: a piezoelectric transducer is one that can generate a proportional!
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