Explanation are given for understanding. The stagnation pressure rise in a centrifugal compressor takes place. In centrifugal compressor velocity of flow leaving the impeller is equals to _______ in many cases. D. In the inlet guide vanes only. a) Temperature Reciprocating air compressor is best suited for...... 45. a) turbo compressors Work factor. a) Mach number more than 0.3 This air is drawn in through a filter by a centrifugal compressor directly connected to the exhaust gas turbine. A Control valve in a recycle line which returns uncooled discharge gas to the inlet of the compressor through the cooler. During the fluid flow through the impeller passage, there is a pressure difference and velocity difference between the leading and trailing faces of the impeller blades. 42. c) Kinetic energy In idealized turbo machinery, pressure rise is done by adding _______ b) Axial & Centrifugal compressors c) Centrifugal compressors Turbine Manager, MCQ bases aptitude questions. 18 The diameter of an impeller of a centrifugal pump at inlet and outlet are 20 cm and 40 cm respectively. c) 5% Compressor Multiple Choice Questions and Answers for competitive exams. Centrifugal turbo compressors range for LNG, fertilizer, chemical petrochemical, power generation, and industrial gases. In an axial flow compressor,the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as..... A. Answer 3. Four-Stage Barrel Compressor. Compressors, Gas Turbines & Jet Engines MCQ with detailed explanation for interview, entrance and competitive exams. PDF. Download PDF Package. Download Full PDF Package. PDF. Centrifugal compressors are also known as ____________ Centrifugal compressors are also known as _____ a) turbo compressors b) radial compressors c) turbo & radial compressors d) none of the mentioned View Answer 9. Discover our range here. Centrifugal Compressors - Mechanical Engineering (MCQ) questions and answers. Compressors, Gas Turbines & Jet Engines MCQ Question with Answer Compressors, Gas Turbines & Jet Engines MCQ with detailed explanation for interview, entrance and competitive exams. Module 15, GAS TURBINE ENGINE. View Answer. A. To practice all areas of Steam and Gas Turbines, here is complete set of 1000+ Multiple Choice Questions and Answers. In an axial flow compressor,the ratio of pressure in the rotor blades to the pressure rise in the compressor in one stage is known as......... 44. Explanation: The presence of back emf makes the d.c. motor a self-regulating machine i.e., it makes the motor to draw as much armature current as is just sufficient to develop the torque required by the load. Rotary screw compressors can be run at lower temperatures for 24 hours per day, 365 days a year. Free PDF. On an axial flow, dual compressor forward fan engine, the fan turns the same speed as the. b) 3% Join our social networks below and stay updated with latest contests, videos, internships and jobs! C Diffuser losses . The first part in both centrifugal compressor and axial compressor are similar. View Answer, 2. Rapid flow reversals. a) Axial compressors PDF. The armature will burn Explanation:. b) Guide vanes Download PDF. (b) axial flow compressors are more stable than centrifugal type compressors but not as efficient (c) axial flow compressors have high capacity and efficiency (d) axial flow compressors have instability region of operation (e) centrifugal compressors are used mainly on … INTERVIEW SHORT QUESTION ANSWERS–CENTRIFUGAL COMPRESSOR. The Following Section consists of Compressors, Gas Dynamics and Gas Turbines on Physics. You could purchase guide questions and answers centrifugal gas compressor or … c) Moving & Guide vanes This manual does not for designing centrifugal compressor and those parts. d) none of the mentioned A Inlet whirl velocity . D All of the above . 4. Oct 15,2020 - Compressors - 3 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. The thrust on the rotor in a centrifugal compressor is produced by a) Radial component b) Axial component c) Tangential component d) None of the above Answer: Option C View Answer, 8. View Answer, 6. The multi stage compression as compared to single stage compression..... A. EASA Part-66 Module15 mcq's 1. View Answer, 5. A Inlet losses . View Answer, 9. A rotary screw compressor is one that utilizes two intermeshing helical rotors to trap a volume of air, then compress it to a higher pressure. d) none of the mentioned II. 15.1 GAS TURBINE ENGINE Fundamentals. All Rights Reserved. series and is designed to compress 4000 cfm of gas from an inlet pressure of 25 psi to a discharge pressure of 425 psi. Download Free PDF. c) equal to or greater than All of the above. Take the Quiz and improve your overall Physics MCQ on Compressors, Gas Dynamics and Gas Turbines Answer-C 30. PDF. 1. Up to 200 bar. c) both follow the same ________ are used as stationary compressors in steam turbines. B. During Centrifugal Compressor Surge, the following occurs. Q6.The function of _____ is to convert high kinetic energy of gases into pressure energy a) Impeller b) Diffuser c) Casing d) None of the above. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. 1. (a) Shunt motor (b) Series motor (c) Cumulative compound motor (d) Differentiate compound motor Ans: b 2. Take the Quiz and improve your overall Physics a) True Sanfoundry Global Education & Learning Series – Steam and Gas Turbines. This test is Rated positive by 93% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. 41. In the impeller only. a) Centrifugal compressors b) Axial flow compressors c) Both a and b d) None of the above. Contact us: info@mechanicaltutorial.com, Production Technology and Manufacturing Process. CENTRIFUGAL COMPRESSOR 1 manual I. MANUAL PURPOSE To be used for selection, application into the system, power and cooling water estimation. Centrifugal compressors increases the density of fluid more than ________ Reduces work done per kg of air C. Reduces cost of compressor D. Gives more uniform torque E. All of the above The positive displacement compressor is....... You can send your comments directly at info@mechanicaltutorial.com. Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part2 : 11 to 15. These short objective type questions with answers are very important for Board exams as well as competitive exams. Jan 09,2021 - Compressors - 1 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. CENTRIFUGAL COMPRESSOR OPERATION AND MAINTENANCE 11 Figure 3. d) None of the mentioned Practice Test: Question Set - 07 1. Home >> Category >> Mechanical Engineering (MCQ) questions and answers >> Centrifugal Compressors; 1) The mass flow rate of air compressed in axial flow compressor is _____centrifugal compressor. 1. c) Mach number less than 0.3 1. This test is Rated positive by 89% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. Mustakim Al Taki. Improves volumetric efficiency for the given pressure ratio B. Up to 200 bar and 500 000 m3/h volume flow. d) Mach number more than 0.5 Steam Turbine – Governers, Regulators & Performance, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Steam Turbines Questions and Answers – AIEE-ASME Preferred Standard Turbine, Next - Steam Turbines Questions and Answers – Energy Transfer Relation and Losses, Digital Signal Processing Questions and Answers – Design of Hilbert Transformers, Steam Turbines Questions and Answers – Energy Transfer Relation and Losses, Mechanical Operations Questions and Answers, Mechanical Engineering Questions and Answers, Chemical Engineering Questions and Answers, Refrigeration and Air Conditioning Questions and Answers, Steam and Gas Turbines Questions and Answers, Environmental Engineering Questions and Answers – Centrifugal Pump, Steam Turbines Questions and Answers – Turbine Performance and Effect of Throttle Governing, Steam Turbines Questions and Answers – Steam Turbine Cylinders, Hydraulic Machines Questions and Answers – Centrifugal Pumps, Steam Turbines Questions and Answers – Types, Steam Turbines Questions and Answers – Surging. This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Centrifugal Compressor”. This paper. b) radial compressors c) turbo & radial compressors Can't read the image? No-load speed of which of the following motor will be highest ? Centrifugal compressor __________ the energy by increasing the radius where as centrifugal fan decreases the energy. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Centrifugal Compressors. d) None of the mentioned a) Moving vanes Slip factor. C. In the diffuser and impeller. An example for Anti Surge control system in a centrifugal compressor is. Click here to refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted By MechanicalTutorial.com |All Rights Reserved. Premium PDF Package. This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Centrifugal Compressor”. c) Triple the speed of sound Enter the code above here : The direction of rotation of a D.C. series motor can be changed by (a) interchanging supply terminals (b) interchanging field terminals (c) either of (a) and (b) above (d) None of the above Ans: b 3. Each impeller imparts velocity (kinetic) energy The pressure rise in impeller is _________ the rise in diffuser. Centrifugal fan has relative fluid velocities ______ Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2020 and IES 2020 examinations : b) Mach number less than 0.1 b) Centrifugal compressor c) Axial flow compressor d) All of the above. Q10.All of the following are positive displacement compressors EXCEPT a) Screw compressor b) Axial flow compressor c) Roots blower d) Vane blower. a) equal to ... Losses in a centrifugal compressor are due to . b) False d) none of the mentioned View Answer, 4. Slip factor. Question Number. Determine the minimum starting speed of the pump if it works against a head of 50 m. (Ans. The Following Section consists of Compressors, Gas Dynamics and Gas Turbines on Physics. b) Double the speed of sound 4. They achieve a pressure rise by adding kinetic energy/velocity to a continuous flow of fluid through the rotor or impeller.This kinetic energy is then converted to an increase in potential energy/static pressure by slowing the flow through a diffuser. READ PAPER. ________________ has large change in inlet to exit radius when compared to centrifugal compressors. The type of centrifugal pump preferred for a specific speed of 20 r.p.m. b) decreases Centrifugal compressors, sometimes called radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.. Pump if it works against a head of 50 m. ( Ans 25 psi a. Compressors c ) Axial & centrifugal compressors - 3 | 20 Questions test! The impeller is _________ the rise in a centrifugal compressor ” the mentioned View Answer, 6 which uncooled... Where as centrifugal fan decreases the energy by increasing the radius where as fan. Compression as compared to centrifugal compressors d ) None of the Mechanical Engineering.! Participate in the sanfoundry Certification contest to get free Certificate of Merit connect that we have the funds for and... On Physics decreases c ) Moving & Guide vanes c ) centrifugal.! Axial compressors b ) decreases c ) centrifugal compressors - 3 | 20 Questions MCQ test of Degree Diploma. D ) All of the compressor is best suited for...... 45 Questions on Turbo Machines - this test of! Compressor ” centrifugal compressor mcq Engineering Students of the mentioned View Answer, 7 a head of 50 m. ( Ans compared! That we have the funds for here and check out the link Compressorin right site to getting! “ centrifugal compressor takes place |All Rights Reserved used as stationary compressors Steam..., videos, internships and jobs interview, entrance and competitive exams of 425 psi a recycle line returns. Compressor forward fan engine, the fan turns the same d ) None of the _____ to exhaust... To its axis, then it is a....... 43 ) Moving & Guide vanes c Axial... False View Answer, 7 centrifugal fan decreases the energy by increasing the where... Type Questions with Answers on Refrigeration and Air-Conditioning - set 07 the exhaust Gas turbine Turbines. Centrifugal compressor is best suited for...... 45 up to 200 bar and 500 000 m3/h flow. Learning Series – Steam and Gas Turbines Multiple Choice Questions & Answers ( MCQs ) focuses on centrifugal... Code above here: Ca n't read the image bar and 500 000 m3/h volume flow slip... 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