a) Milling b) USM c) Drilling d) None of the mentioned View Answer Material removal rate in USM increases with a) Tool There are two types of options: the correct or best choice, called the key, and other options called distractors. (15) An ultrasound machine sends out a frequency of 1MHz, or f = 1 × 10 6 Hz. d) The mechanical index should always be displayed on ultrasound machine. Professionals, Teachers, Students and Kids Trivia Quizzes to … 1. It is a. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. This method is the best choice for working with hard materials such as ceramic matrix composites, ruby, piezo-ceramics, glass, ceramics, Quartz, ferrite, diamonds, technical ceramics, alumina, PCD, sapphire, CVD silicon carbide and similar ones. We have listed top multiple choice questions and answers on sound wave in physics. b) Increase in volume of work material per impact When two or more (plane) ultrasound waves exist in the same medium at the same time. e) A rise in tissue temperature up to 5°C is safe for the embryo. In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency. It is easy to understand and help you to improve your skill. a) Balamuth … A directory of Objective Type Questions covering all the Computer Science subjects. At what rate slurry is pumped through nozzle in USM? View Answer, 6. Point value of the question is noted in parenthesis. d) 75 L/min d) Decreases in the number of particle making impact per cycle View Answer. The sound is reflected from a blood platelet moving away from the machine and is picked up by the machine as a frequency f ′′.It is added to a wave of the original frequency f to produce beats. Element of machine which is used to convert high frequency electrical impulse into mechanical vibration in USM is known as c) Ultrasonic machining Ultrasound in Obstetrics and Gynaecology ... A final section provides multiple-choice questions for each chapter. 22.3 In ultrasonic machining, material removal rate decreases with increasing frequency and amplitude of vibration: (a) true or (b) false? The ultrasonic cleaning solution: A)should be a dilution of the surface disinfectant. Ultrasonic Machining is a non-traditional process, in which abrasives contained in a slurry are driven against the work by a tool oscillating at low amplitude (25-100 microns) and high frequency (15-30 kHz). The Ultrasound Beam. View Answer, 3. advertisement. 10,000 oscillations per second b. Join our social networks below and stay updated with latest contests, videos, internships and jobs! View Answer, 8. View Answer. This free ultrasound ebook introduces the clinician in training to the ultrasound machine and its uses for diagnostic purposes in the critical care setting. c) Decrease in frequency The Mathematical Exercises give you the opportunity to try some typical calculations relating to ultrasound physics. d) None of the mentioned This set of Manufacturing Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Ultrasonic Machining”. The repeated reflections of ultrasonic pulses from between surfaces or discontinuities within a body are [Australian Standard] page10; a) ghost echoes b) sing-around c) multiple echoes d) wrap-around II-9: Electronic gates on the trace of a UT machine can be used to [Krautkramer 3rd Edition] page249; a) determine the presence of flaws a) 1 – 10 µm a) Magnetostrictor Answers to Multiple-Choice Questions 507. c) 40 – 50 µm a) Decrease in volume of work material per impact a) True d) None of the mentioned Show less. Phase Diagram, Mechanical Properties & Testing, Ferrous Metal, Non-Ferrous Metal & Heat Treatment, Magnetic & Electrical Properties of Material, Metrology, Welding & Fusion-Welding Processes, Powder Metallurgy, Metal Casting & Gating Systems, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Manufacturing Engineering Questions & Answers – Laser Beam Machining, Next - Manufacturing Engineering Questions & Answers – Abrasive jet Machining, Digital Circuits Questions and Answers – Shift Registers, Digital Circuits Questions and Answers – Universal Shift Registers, Bioprocess Engineering Questions and Answers, Civil Engineering Drawing and Estimates Questions and Answers, Fluidization Engineering Questions and Answers, Engineering Chemistry I Questions and Answers, Chemical Process Calculation Questions and Answers, Mechatronics Engineering Questions and Answers, Basic Civil Engineering Questions and Answers, Instrumentation Engineering Questions and Answers, Engineering Materials and Metallurgy Questions and Answers, Aeronautical Engineering Questions and Answers, Environmental Engineering Questions and Answers, Metallurgical Engineering Questions and Answers, Best Reference Books – Technology, Engineering and Sciences, Chemical Engineering Questions and Answers, Waste Water Engineering Questions and Answers, Mechanical Engineering Questions and Answers, Machine Tools & Machining Questions and Answers, Manufacturing Engineering / Processes I Questions and Answers, Manufacturing Engineering / Processes II Questions and Answers, Advanced Machining Processes Questions and Answers. d) Decrease in number of particle making impact per cycle The high rate of metal removal and so on. MULTIPLE CHOICE QUESTIONS. b) 0.001 – 0.1 µm Learn the difference between multiple choice, rating, ranking, demographic, and more. Questions and Answers on lathe machine working and tools. B)should have an antimicrobial activity that will disinfect the instruments. View Answer, 5. c) Decrease in frequency View Answer, 3. b) Electrical energy 1. First Hour Exam Physics 116 VERSION A Part 1: Multiple choice. 1. Write the best answer on the line. The machining system of USM contains which of the following components? D All of the above are correct. Select all the correct answers in the following. a) 0.0001 – 0.001 µm b) False Electrical discharge Machining b. Electrochemical grinding c. Electrochemical Machining d. Ultrasonic Machining (Ans:c) 29. c) Transducer As you complete a quiz, you will receive feedback regarding which questions you got right and which were incorrect. ) Concentrator c ) Thermal energy d ) None of the following elements of is! 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