1. These short solved questions or quizzes are provided by Gkseries. Time lag: B. 1.2.3. Multiple Choice Questions Engineering Physics : PHY109 engineering physics ... A range of energy level is characterized by the existence of. Accuracy is expressed as percentage of full range output. A. VHF, UHF . 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. Ans: a and b. It is very accurate inductive transducer as compared to other inductive transducers. Which of the following is a static characteristic of instruments? 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. Basic Electronics; Analog Communication Systems; About; Contact … 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.. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … View Answer: Answer: Option A. In what range of frequencies are most omnidirectional horizontally polarized antennas used? Resistive Transducer Definition: The transducer whose resistance varies because of the environmental effects such type of transducer is known as the resistive transducer. 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. The thermistor is a sensor: True; False; Correct answer: 1. Free download in PDF Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. It measures temperature, pressure, displacement, force, vibrations, etc. Advantages of Piezoelectric Transducer 4. Zero offset A real sensor will deviate from the idealised linear model. (Note that clipping is an extreme example of compression!) Answer: a. Which of the following is not a characteristic of an ideal transducer? Range vs Span | Difference between Range and Span. 762. If the voltage output is 127.3V, The applied load is approximately, Try this amazing Wireless Network MCQ's quiz which has been attempted 15046 times by avid quiz takers. 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. What is the smallest change which can be measured by this transducer ? A. Fidelity: B. The resonant frequency (or natural frequency) is the frequency at which the monitoring system itself resonates and amplifies the signal. B. VLF, LF . ANSWER: B. Varies over a wide range, remains constant « Previous; Next » Post your comment. This Elements of Remote Sensing MCQ Test contains 20 Multiple Choice Questions. (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. Multiple Choice Question on Electronic Measurement and Instrumentation. A. Definition of LVDT. Which one of the following static characteristics of instruments is undesirable? 1. Repeatability. a) High dynamic range b) Low linearity c) High repeatability d) Low noise View Answer. McQ surveillance purposes, McQ is also the first to interface multiple sensors into a fully integrated communications and data network. The output across secondary of this transformer is the differential thus it is called so. Which of the following is its kinetic energy in the first excited state? A pinoybix mcq, quiz and reviewers. to understand the working principle, consider a conductor rod. A. end fire array . C. broadband array . The temperature effects transducers. MCQ in Satellite Communications Part 1 as part of the Communications Engineering (EST) Board Exam. Dynamic Range. Solution: 5. The total energy of the electron in the hydrogen atom in the ground state is -13.6 eV. Menu. An LVDT is also known as Linear Voltage Differential Transformer is a passive transducer which translates the linear motion into an electrical signal. True. When the Transducers have a high dynamic range are more precise as well as sensitive. 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. 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. A. Is thermistor a sensor. 14. Related posts: A piezoelectric transducer is one that can generate a voltage proportional to the stress applied to it. The most commonly used type of transducer is variable resistance transducer. 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. (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" Transducers are used for this purpose. Range. Accuracy: It is the degree of exactness between actual measurement and true value. its voltage sensitivity constant is . The thermistor is a sensor whose resistance varies with temperature and it can be used to sense temperature. Also explore over 27 similar quizzes in this category. 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. 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 . The range is the maximum value of the measured that can be measured by a given meter. 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 . Answer: a. - 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? C. SH, EHF . 25. Electronics Post. 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. Answer: b Explanation: An ideal transducer should show high linearity. 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. MCQs are for you. 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 . 2. In what acoustic frequency range works AE testing usually? Measurement Instruments: 1. Piezoelectric Transducer 2. 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 … 3. (d) All the above. 11. Applications of Piezoelectric Material(Transducer) 3. It should be at least 10 times the fundamental frequency. 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. 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. 1. The full range of a sensor can be limited by compression or by clipping. Piezoelectric Transducer Contents hide 1. electrons. D. MF, HF . Multiple choice Questions and Answers on Measurement and Instrumentation . An instrument designed to measure a frequency … The basic requirements of a sensor are: Range: It indicates the limits of the input in which it can vary. These short objective type questions with answers are very important for Board exams as well as competitive exams. 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. Multiple Choice Questions and Answers By Sasmita January 14, 2017 1) What is the wavelength of Super high frequency (SHF) especially used in … Finally, you can also take the Online Quiz from the Take Elements of Remote Sensing … B. critical phased array . Time lag: C. Dynamic error: D. Reproducibility : 2. Applications of LVDT. It is otherwise called as resistive sensors. The dynamic response is limited. Disadvantages of Piezoelectric Transducer 4.1. Start Practice Exam Test Questions Part 1 of the Series. This activity contains 10 questions. 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. In case of temperature measurement, a thermocouple can have a range of 25 – 250 0C. Since both compression and clipping are manifestations of nonlinearity we conclude that all sensors are non-linear. You have to select the right answer to the question. Go To Download Page Close. Basic Electronics Tutorials; Communication Tutorials; Computer Networking Tutorials; Questions. a) True b) False. It is then processed and displayed. Try the following questions to test your knowledge of Chapter 3. Home; MCQ; Interview Questions; Tutorials. McQ is recognized as the technology leader in remote surveillance, security and environmental monitoring products. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Types of Transducers”. Drift: C. Reproducibility: D. Span . Which of the following is a dynamic characteristic of instruments? These transducers work according to the piezoelectric effect. This page compares Range vs Span and mentions difference between Range and Span.. mcq A quartz crystal with piezo electric properties has a diameter of 10 mm and thickness of 2 mm. 1. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. Ans: c. 24. Multiple choice Questions and Answers on Measurement and Instrumentation. In glucose sensor, a measure of change in oxygen value is a measure of the glucose value. 1. 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: _____ … Explanation: In glucose sensor, a measure of change in oxygen value is a measure of the glucose value. Multiple choice questions. The range of voltmeters, ammeters, etc., is limited by the current carrying capacity of the control springs, high measuring parameters, etc. Transducers which require an external power source for their operation is called as a passive transducer. A transducer measures a range of 0 – 200 N force with a resolution of 0.15 percent of full Scale. 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.