This test is Rated positive by 87% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. When the input to a transducer is increased from zero, there is a minimum value below which no output can be detected .This minimum value of the input is defined as the threshold of the transducer. Greater than 45 degrees c. 45 degrees d. Unknown: more information is required Ability of the sensor to repeat a measurement when put back in the same environment is called repeatability. That is why message signals are also called base band signals, representing … Q.159.The ultra High Frequency (UHF) range is….. Some common transducers include thermistors, photocells, photodiodes, flow meters, pressure transducers, and tachometers. 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. a) Electrical energy into coherant light. Usually a transducer converts a signal in one form of energy to a signal in another.. Transducers are often employed at the boundaries of automation, measurement, and control systems, where electrical signals are converted to and from other physical quantities (energy, force, torque, light, motion, position, etc. Mechanical measurement - Mechanical Engineering test questions 1) The reliability of an instrument mean a) The life of the instrument b) The degree of repeatability within specified limits This page compares Range vs Span and mentions difference between Range and Span.. 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. There are different views and definitions of sensors and transducers. The electrical output of the transducer is an analog current or voltage that is proportional to the physical variable it is monitoring. d) Heat energy into coherent light. A pinoybix mcq, quiz and reviewers. Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. 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. Basic Requirements of a Sensor or Transducer. 16th Dec '20. MCQ Which is the most suitable thermocouple transducer for the measurement of temperature in the range below? Less than 45 degrees b. 1.2.3. Some conditions that are mainly used to rate transducers are discussed below. 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.. What is the smallest change which can be measured by this transducer ? Ultrasonics, vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz.The term sonic is applied to ultrasound waves of very high amplitudes. PDF | On Jun 2, 2013, mahendra Kumar published satellite communication MCQ bank | Find, read and cite all the research you need on ResearchGate A. Chromel-alumel. ANSWER: Potentiometer. 21. The principle of operation of variable resistance transducer is a) Deformation leads to change in resistance b) Displacement of a contact slider on a resistance c) … Computer Science MCQ (Multiple Choice Questions) Sunday, 18 March 2012 Computer System Architecture MCQ 06 1. These short solved questions or quizzes are provided by Gkseries. Wheatstone bridge is used to measure resistance in the range of _____ a) 1Ω to a few megaohms b) 10kΩ to a few megaohms ... by making use of a transducer. Dec 28,2020 - Measurements And Instruments 1 MCQ | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. Answer: b. 12GB to 15GB. c) Radiation. 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. Which is the most suitable thermocouple transducer for the measurement of temperature in the range of 1,00 0 C to 1,500 0 C ? Choices. Definition of LVDT. a) Conduction. 761. b. Each transducer is focused at a particular depth.2 In pulsed operating modes, ultrasound pulses contain additional frequencies both higher and lower than preferential frequency. Q18. (Note that clipping is an extreme example of compression!) Accuracy: It is the degree of exactness between actual measurement and true value. A soundwave is created by a transducer, reflects off an object and returns to the transducer. Question 13. Transducers, Measurement & Instrumentation. In storage devices PC have hard disk having capacities in the range of _____: a. B. Platinum-rhodium. Real-time Radiography Real-time radiography (RTR), or real-time radioscopy, is a nondestructive test (NDT) method whereby an image is produced electronically, rather than on film, so that very little lag time occurs between the item being exposed to radiation and the resulting image. C. Iron-constantan. According to one set of definitions, a Sensor […] A laser is an optical transducer that converts. Accuracy: High accuracy is assured. b) Chemical energy into coherent light. 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. Iron constantan: b. Platinum- rhodium: c. Chromel constantan: d. Chromel-alumel: Check my answer! Q.158.FM radio broadcast band frequency range is… (a) 88MHz to 108 MHz (b) 216 MHz to 600 MHz (c) 300 MHz to 3000 MHz (d) 470 MHz to 806 MHz. LBM uses the light energy of a laser beam to remove material by. The range of frequency produced by a given transducer is termed its bandwidth. c. 20GB to 80GB. By using the variations on a Wheatstone bridge we can ... MCQ Power-50k. In this tutorial, we will learn about Transducers, Different Types of Transducers, their characteristics and a few important applications of transducers. Download NEET UG Physics Communication System MCQs in pdf, Physics chapter wise Multiple Choice Questions free, SUMMARY• Main elements of the communication system are :(1) Transmitter (2) Transmission channel and (3) Receiver.• Transducer : The device which transforms one form of energy into another form of energy is called a transducer.• The output across secondary of this transformer is the differential thus it is called so. Hypersound, sometimes called praetersound or microsound, is sound waves of frequencies greater than 10 13 hertz. 6. D. Chromel-constantan. Choice (4) Response; a. 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. Transducers which require an external power source for their operation is called as a passive transducer. Answer : The range of the transducer is specified as from the lower value of input to higher value of input. have a range or a full scale xmax. Q.157.Radio navigation and Aeronautical mobile frequency range is….. (a) 30 Hz to 300 Hz (b) 300 Hz to 3 kHz (c) 3 kHz to 30 kHz (d) 9 kHz to 540 kHz. It is known as selsynorantosym, Telesyn. Explanation: Input range is the range between the max and min values is applied parameter which can be measured . b) Convention. The full range of a sensor can be limited by compression or by clipping. 15GB to 20GB. MCQ in Satellite Communications Part 1 as part of the Communications Engineering (EST) Board Exam. Resistive Transducer Definition: The transducer whose resistance varies because of the environmental effects such type of transducer is known as the resistive transducer. ). Multiple Choice Question on Electronic Measurement and Instrumentation. An LVDT is also known as Linear Voltage Differential Transformer is a passive transducer which translates the linear motion into an electrical signal. The round-trip time is two seconds. d. 80GB to 85GB. ... Transducer. Dynamic Range. 766. What Is Range And Span? Electrical and Electronics Measurement & Instrumentation Expected MCQ PDF 6 For VIZAG Exam 2017. Range vs Span | Difference between Range and Span. If a contact angle beam transducer produces 45 degree shear wave in steel, the angle produced by the same transducer in an aluminum specimen would be: (VSteel = 0.323 cm/micro sec: VSal = 0.310 cm/micro sec) a. Question 35. Since both compression and clipping are manifestations of nonlinearity we conclude that all sensors are non-linear. The total operating range of the transducer is called span of the transducer. A transducer is a device that converts the physical variable to an electrical variable. A synchros is an electromagnetic transducer commonly used to convert an angular position of the shaft into an electric signal. Basically, a synchros is a rotary device that operates on the same principle as the transformer and produces a correlation between angular position and a voltage or set of voltage. The depth of the reflector is 10 cm. Operating Range: The transducer should maintain the range requirement and have a good resolution over the entire range. Q17. 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. Zero offset A transducer is a device that converts energy from one form to another. a) Active transducer b) Primary sensor c) Self generating transducer d)Passive transducer Ans : (d) 32. the range points (line 1) • b. use a linear best fit (least squares) through the points of the curve (line 2) • c. use the tangent to the curve at some point on the curve Take a point in the middle of the range of interest-Draw the tangent and extend to the range of the curve (line 3) Range of different input values over which there is no change in output values b. Conditions for Transducer Types. 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