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d) None of the mentioned B Outlet whirl velocity . c) Mach number less than 0.3 View Answer, 9. c) Moving & Guide vanes In the impeller only. Compressor Multiple Choice Questions and Answers for competitive exams. View Answer, 8. A piston compressor (aka reciprocating) uses pistons driven by a crankshaft to deliver air at high pressure. You could purchase guide questions and answers centrifugal gas compressor or … Rotary screw compressors can be run at lower temperatures for 24 hours per day, 365 days a year. PDF. Centrifugal compressors are also known as _____ a) turbo compressors b) radial compressors c) turbo & radial compressors d) none of the mentioned View Answer Centrifugal fan has relative fluid velocities ______ 41. C. … b) Guide vanes b) False Q10.All of the following are positive displacement compressors EXCEPT a) Screw compressor b) Axial flow compressor c) Roots blower d) Vane blower. This is the Multiple Choice Questions Part 3 of the Series in Power Plant Engineering as one of the Mechanical Engineering topic. A Control valve in a recycle line which returns uncooled discharge gas to the inlet of the compressor through the cooler. All of the above. a) 1% An example for Anti Surge control system in a centrifugal compressor is. B Impeller channel losses . MAIN COMPONENTS OF IN-LINE CENTRIFUGAL COMPRESSOR Following figure (Fig.1) shows components of in-line centrifugal compressor. A Inlet losses . 1. This air is drawn in through a filter by a centrifugal compressor directly connected to the exhaust gas turbine. Ans: a Standard air is the air at (a) atmospheric conditions at any specific … Oct 15,2020 - Compressors - 3 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. View Answer, 6. Centrifugal compressors, sometimes called radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery.. The type of centrifugal pump preferred for a specific speed of 20 r.p.m. Gas Temperature rises. a) Axial compressors ... Losses in a centrifugal compressor are due to . Four-Stage Barrel Compressor. 15.1 GAS TURBINE ENGINE Fundamentals. These short objective type questions with answers are very important for Board exams as well as competitive exams. c) Triple the speed of sound ________ are used as stationary compressors in steam turbines. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams.MCQs on Turbo machines, Rotodynamic machines, Hydraulic turbine, Reaction turbine, Steam turbine, Pump, Steady flow compressor, Rotary compressor, Centrifugal compressor & Axial flow compressor1 mark … 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. Explain slip factor and work input factor in a centrifugal compressor. d) Mach number more than 0.5 Up to 200 bar. 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. CENTRIFUGAL COMPRESSOR 1 manual I. MANUAL PURPOSE To be used for selection, application into the system, power and cooling water estimation. These short solved questions or quizzes are provided by Gkseries. 4. d) None of the mentioned Click here to refresh, © 2015 - 2020 MechanicalTutorial.com This Content is copyrighted By MechanicalTutorial.com |All Rights Reserved. Practice Test: Question Set - 07 1. b) decreases No-load speed of which of the following motor will be highest ? PDF. View Answer Discuss. On an axial flow, dual compressor forward fan engine, the fan turns the same speed as the. Reciprocating air compressor is best suited for...... 45. Take the Quiz and improve your overall Physics 9. Centrifugal turbo compressors range for LNG, fertilizer, chemical petrochemical, power generation, and industrial gases. View Answer, 2. All Rights Reserved. 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. A short summary of this paper. C. In the diffuser and impeller. A Inlet whirl velocity . 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. Free PDF. Answers Centrifugal Gas Compressorin right site to start getting this info. Rapid flow reversals. If the flow of air through the compressor is perpendicular to its axis,then it is a....... 43. 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. In idealized turbo machinery, pressure rise is done by adding _______ Centrifugal compressors are also known as ____________ Compressors, Gas Turbines & Jet Engines MCQ with detailed explanation for interview, entrance and competitive exams. 18 The diameter of an impeller of a centrifugal pump at inlet and outlet are 20 cm and 40 cm respectively. Discover our range here. a) turbo compressors b) Double the speed of sound Mustakim Al Taki. Jan 09,2021 - Compressors - 1 | 10 Questions MCQ Test has questions of Mechanical Engineering preparation. a. lower … get the questions and answers centrifugal gas compressor connect that we have the funds for here and check out the link. This paper. This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Centrifugal Compressor”. EASA Part-66 Module15 mcq's 1. Up to 200 bar and 500 000 m3/h volume flow. Improves volumetric efficiency for the given pressure ratio B. The centrifugal compressor, originally built to handle only large volumes of low pressure gas and air (maximum of 40 psig), has been developed to enable it to move large volumes of gas with discharge pressures up to 3,500 psig. a) Centrifugal compressors b) Axial flow compressors c) Both a and b d) None of the above. In centrifugal compressor velocity of flow leaving the impeller is equals to _______ in many cases. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. The first part in both centrifugal compressor and axial compressor are similar. Centrifugal pumps cannot handle air … a) Mach number more than 0.3 1. ________________ has large change in inlet to exit radius when compared to centrifugal compressors. B. Module 15, GAS TURBINE ENGINE. Work factor. Set 1 - Turbo Machines - This test comprises of 35 questions on Turbo Machines. This manual does not for designing centrifugal compressor and those parts. b) Mass Premium PDF Package. 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. d) None of the mentioned 1733.2 rpm) 19 A centrifugal pump delivers 25 liters of water per second against a head of 10 meters and running at 1300 rpm requires 10 kW of power. II. Slip factor. a) Moving vanes b) Axial & Centrifugal compressors Answer: Option C Can't read the image? b) radial compressors The pressure rise in impeller is _________ the rise in diffuser. Question Number. 31 Full PDFs related to this paper. 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 The multi stage compression as compared to single stage compression..... A. d) none of the mentioned View Answer, 7. CENTRIFUGAL COMPRESSOR OPERATION AND MAINTENANCE 11 Figure 3. Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2020 and IES 2020 examinations : Reduces work done per kg of air C. Reduces cost of compressor D. Gives more uniform torque E. All of the above 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. c) Centrifugal compressors Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. c) equal to or greater than View Answer, 5. View Answer, 3. View Answer, 4. d) none of the mentioned Centrifugal Compressors. b) Centrifugal compressor c) Axial flow compressor d) All of the above. The armature will burn Explanation:. a) equal to The Following Section consists of Compressors, Gas Dynamics and Gas Turbines on Physics. Centrifugal compressor __________ the energy by increasing the radius where as centrifugal fan decreases the energy. a) Temperature a) True c) 5% a) increases b) Mach number less than 0.1 Slip factor. In a centrifugal compressor, the ratio of the _____ to the blade velocity is called slip factor. Download Full PDF Package. C Diffuser losses . The positive displacement compressor is....... You can send your comments directly at info@mechanicaltutorial.com. PDF. Take the Quiz and improve your overall Physics MCQ on Compressors, Gas Dynamics and Gas Turbines Answer-C 30. Centrifugal Compressors - Mechanical Engineering (MCQ) questions and answers. D. In the inlet guide vanes only. Download PDF. c) both follow the same d) none of the mentioned c) turbo & radial compressors Turbocompressors using integral-gear or single-shaft technology. b) greater than b) 3% 4. Download PDF Package. Each impeller imparts velocity (kinetic) energy Centrifugal compressor is used in refrigeration when pressure difference between condenser and evaporator pressures is (a) >1.5 bars (b) <1.5 bars (c) >3.5 bars (d) None (Ans:b) Centrifugal compressor is used when the volume to be handled … Contact us: info@mechanicaltutorial.com, Production Technology and Manufacturing Process. Turbine Manager, MCQ bases aptitude questions. To practice all areas of Steam and Gas Turbines, here is complete set of 1000+ Multiple Choice Questions and Answers. Sanfoundry Global Education & Learning Series – Steam and Gas Turbines. Answer 3. Download Free PDF. During Centrifugal Compressor Surge, the following occurs. A. (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 … The stagnation pressure rise in a centrifugal compressor takes place. B. Compressors, Gas Turbines & Jet Engines MCQ Question with Answer Compressors, Gas Turbines & Jet Engines MCQ with detailed explanation for interview, entrance and competitive exams. 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. (a) Shunt motor (b) Series motor (c) Cumulative compound motor (d) Differentiate compound motor Ans: b 2. Enter the code above here : Explanation are given for understanding. Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part2 : 11 to 15. View Answer, 10. This set of Steam and Gas Turbines Multiple Choice Questions & Answers (MCQs) focuses on “Centrifugal Compressor”. 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. 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. 42. D All of the above . series and is designed to compress 4000 cfm of gas from an inlet pressure of 25 psi to a discharge pressure of 425 psi. © 2011-2021 Sanfoundry. a) Speed of sound Compressor vibrates. 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. Join our social networks below and stay updated with latest contests, videos, internships and jobs! In the diffuser only. Determine the minimum starting speed of the pump if it works against a head of 50 m. (Ans. 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. d) 7% 1. View Answer. 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.
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