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If angular speed of cam is increased two times, how much jerk will be increased ? What is the relationship between (i) axes of spin, precession, and applied gyroscopic torque and (ii) in between their planes ? 84. Ans: 0.1 to 0.25. Engineering Mechanics PART 1 . On what factor the size of cam depends ? How is it measured. During the act of measurement the measuring instrument takes energy from the signal source or measured medium and thus the signal source is altered. Stagnation pressure is the sum of static pressure and dynamic pressure. What is the difference between basic kinematic chain and compound kinematic chain ? The order of the system is the order of the highest derivative of the ordinary differential equation with constant coefficients which defines the system mathematically. What is the difference between steady and unsteady flow ? Kaplan turbine. ; Paper 1 will be of 200 marks and paper 2 will be of 300 marks. 69. 63. For the same size, length and condition of pipe, how the friction head loss changes if pipe size is varied. (function() {var script=document.createElement("script");script.type="text/javascript";script.async =true;script.src="//";document.getElementsByTagName("head")[0].appendChild(script);})(); 33. A system is said to be stable if the output of a system after fluctuations, variations or oscilla-tions, settles at a reasonable value for any change in input. Why do you want to leave your current job? When a plate slides over a parallel plate, what is the relationship between vis¬cous force and the lubricant thickness ? It can be measured by allowing the flow of water from a hydrant and noting down the horizontal distance (x) where jet strikes the ground and the vertical distance (y) of outlet from ground. BASIC MECHANICAL ENGINEERING Interview Questions, Amplify signal without affecting its waveform, Remove unwanted noise signals that tend to obscure the input. Mechanical Reasoning 10 Logical Reasoning 10 PRACTICE APTITUDE TESTS . MECHANICAL ENGINEERING Questions Answers PDF :: 51. Explain the difference between rotational and irrotational flow. In anti-friction bearings rolling components are introduced between the sliding surfaces. Errors give the difference between the measured-value and the true value, Accuracy of a measurement system is measured in terms of error. (i) They are the logarithmic plots used to represent transfer functions Mechanical Engineering Interview Questions And Answers in pdf.visit for more Mechanical Engineering Interview Questions And Answers to download in pdf format. It decreases. I want to need it immediately, so please it to my email so only. Define the term contraction coefficient. 32. (iii) Screw pair—one degree of freedom. Ans: Normally they are looking for the subject in which their company is based on. Heat Transfer Fluid Mechanics  Whether Bernoulli’s equation is applicable for streamline straight and rotational flows ? 85. It is proportional to the square root of the distance from the leading edge. The function of a transducer element is to sense and convert the desired input into a more convenient and practicable form to be handled by measurement system. Square of mean velocity. GATE Previous Years Papers [PDF] – GATE 2021 score is valid for three years from the date of announcement of the results. (ii) water-hammer relief or pressure regulation. What keeps the shaft in floating condition in hydrodynamic journal bearing ? 1. 64. (2) Variable conversion (or) transducer element (i) Itevolute pair, (ii) cylindrical pair, (iii) Screw pair, (iv) Spherical pair. 40. 71. 48. The ratio of area of jet (contracted) and the cross section of the orifice. UPPSC AE Previous Question Papers for Uttar Pradesh Public Service Commission (Assistant Engineer) Combined State Engineering Services Examination PDF with Answer Sheet mentioned below the page. A study of error helps in finding the reliability of the results. (4) Data transmission element 92. Any obstruction of a streamflow over which water flows is weir. Define Froude number. What parameters influence the tool life ? 30. It is the frictionless fluid. 65. Why belts are subject to creep ? If discharge head is required as 8 kg/cm2, what should be diameter of impeller. 90. 87. 24. 99. Sir plz send me the pdf of 200 Mechanical Engineering Questions & answers in,all your q&a are so important to me.plz send me soon.thats great regarding to you for your great work.THANK YOU It is one of eminent platform for Engineering Question and Answer particularly Mechanical Engineering, Please email me all questions and answers. The pressure caused on the walls of a pipe due to a fluid at rest inside the pipe or due to the flow of a fluid parallel to walls of the pipe is called static pressure. This static pressure is measured by inserting a pressure measuring tube into the pipe carrying the fluid so that the tube is at right angle to the fluid flow path. Define Reynold’s law of similitude ? What is inviscid fluid ? relatively straightforward. In this post provide you latest and updated 2018 Electrical MCQ Objective Questions with answer which are help for preparation all electrical engineering exams like GATE, IES, JTO, PSUs, RRB JE/AEN, RRB loco pilot and technicians, SSC JE, DMRC, LMRC, ISRO and other state level engineering exams. Mechanical Engineering questions and answers with explanation for interview, competitive examination and entrance test. It controls the piston position for cut off of steam, for release of steam and compression position for steam in cylinder. Mechanical Engineering MCQ questions and answers for an engineering student to practice, GATE exam, interview, competitive examination and entrance exam. The efficiency of a centrifugal pump depends on size, speed and type number. 3. It also works as a pressure relief valve for the upstream pipe during the turbine shut off. Steam Boilers, Engines, Nozzles and Turbines PART 1 . At which point the cavitation is most likely to occur in a hydel plant ? Fully solved examples with detailed answer description, explanation are given and it would be easy to understand. Give two uses of Bode plots. Then this article can help you with your interview preparation. Please send me my email address, please send me question&answers of mechanical engineering in pdf format…i need it, send me the all mechanical engineering interview question and answer, Yesterday my interview so send me immediately. 83. And looking for a job in the mechanical field. Most Important 200 Mechanical Engineering Interview Questions & Answers PDF . 16. What is the value of coefficient of friction for ball bearing ? Name the three stages of a generalised measuring system. should be located below the metacentre. A basic kinematic chain consists of four kinematic links and a compound kinematic chain is a constrained chain of more than four links. For what type of flow, the streamlines, pathlines and streaklines are virtually identical ? What is meant by precision ? All Exam Review. What is order of the system. A pelton wheel is braked by a nozzle directing a jet on the back of the buckets. What is the difference between a machine and a mechanism ? PART 1  60. It is the ratio of total pressure change in the rotor to that in the stage. A. A scheme in which the discharge is varying and only that much water can be utilised for conversion as available in the river. 13. In irrota¬tional flow the net rotation of a fluid element about its own mass centre is zero as it moves from one place to another. Home » BASIC MECHANICAL ENGINEERING Interview Questions » Mechanical Engineering Interview Questions Answers PDF. general-mechanical-engineering-question-and-answers 1/2 Downloaded from on December 3, 2020 by guest [EPUB] General Mechanical Engineering Question And Answers Recognizing the showing off ways to get this books general mechanical engineering question and answers is additionally useful. 28. This effect is called loading. Multiple choice practice questions on topics such as Thermodynamics, Hydraulics & Pneumatics, Heat Transfer,Theory of Machines, Material Science, Manufacturing Processes, Fluid Mechanics etc. For a journal running in a bearing clockwise at steady state, where will be the minimum clearance ? A power test on the other hand will present a smaller number of more complex questions. 70. Navier stokes equation represents the conservation of which quantity ? 77. What is static pressure ? 8. I need ASAP for my upcoming intervew, I need a btech it basic interview questions. What is the materials of jib and cotter joints? This is just one of the solutions for you to be successful. A chain is constrained if no. Stability, accuracy and speed of response are the three requirements of control system. (i) annual loss of revenue on account of power head lost due to friction. This article provides you latest 2021 Mechanical Engineering Objective Questions with Answer for GATE, IES, PSUs with Pdf Free Download.In this article provides you latest 2021 Mechanical MCQ Pdf students. NDDC Scholarship Past Questions for MECHANICAL ENGINEERING...The NDDC Scholarship Test Past Questions And Answers for MECHANICAL ENGINEERING is available (6) Data presentation element The Following Section consists Multiple Choice Questions on Basic Mechanical Engineering. Size of cam depends on base circle. (ii) Processing/manipulating the measured variable. in branch other than these four branches can also attend this exam choosing any of the above four papers. The analogous output is then converted into an electrical signal by secondary transducer. What is the number of degrees of freedom constrained in each case by the kinematic pairs. These tests are concerned with how many questions you can answer correctly in the allotted time. 36. 58. ... All students, freshers can download Mechanical Engineering quiz questions with answers as PDF files and eBooks. Corliss valve reduces condensation, provides independent control on admission, cut off, release and compression, and reduces driving power requirements. Hydrodynamic pressure developed in the lubricant. 82. In boundary lubrication condition the ratio of thickness of lubrication film to surface roughness (CLA value) is less than 1 and for fluid film lubrication condition this ratio is greater than 5 and less than 100. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. Ans: Yes. (i) flow regulation – act as a reservoir for acceptance or delivery of water to meet requirements of load changes. To the left of the load line. ... please post mechanical engineering question and answer. 56. PRACTICE APTITUDE TESTS . Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. Title: Aptitude Test PDF 2019/20 | Free Questions & Answers Author: Andrea Subject: Download free Aptitude tests, questions & answers written by experts. Mechanical Engineering Interview Questions and Answers Book pdf – The branch of Mechanical Engineering has always been an evergreen favorite among students who have taken up Engineering as their desired field of study. The shear center is a center where the … What is meant by relative stability ? The economic diameter of a power tunnel is determined such that the total value of following two factors is least This is the dreaded, classic, open-ended interview question and likely to be among the first. In which type of lubrication the starting friction is low ? The head loss in a fully developed laminar flow in a circular pipe due to friction is directly proportional to … ? Define the term stability of a feed back control system ? PART 1, Steam Boilers, Engines, Nozzles and Turbines If base circle diameter of cam increases, what happens to pressure angle ? 1. Boundary layer m fluid flow exists on account of fluid density. Define the degree of reaction of a turbomachine. If the system is found to be stable, then it is necessary to know the stable strength or degree of stability which is called relative stability. Why the elements of higher pairs must be force closed ? Phase margin and gain margins are the measures of relative stability. Damping factor. A machine is a mechanism but here we are concerned with forces to be transmitted and it is used to modify mechanical work. 98. 26. UPPSC AE Mechanical & Civil Sample Papers for PDF and UPPSC AE Model Answer … Earlier students use to consider few options after cracking gate exam such as scientist or a professor but nowadays the scenario has changed and scope has widen up. The three functions served by a surge tank are Compressors, Gas Turbines and Jet Engines PART 1 . Out of centrifugal, axial and positive displacement pumps, which has maximum specific speed and which has minimum ? How the stability of empty ship increased. What to look for in an answer: A long history of design and innovation What is the criterion for determining economic diameter of power tunnel ? 79. At constant capacity, head is proportional to. (ii) recurring annual expenditure. 88. 12. How does the head change in pipe flow with change in diameter, if capacity is constant. Two geometrically similar flow systems subject only to friction and inertia forces are dy¬namically similar if both have the same ‘Reynolds’ number. 23. What do you understrand by inversions and how many inversions are possible in a kinematic chain having ‘n’ links ? How the streamlines and equipotential lines are related in a flow field ? Inversions are different mechanisms obtained by fixing different links in a kinematic chain but keeping relative motions of links unchanged with respecat to one another. What is the difference between anti-friction and hydrostatic bearings ? The approximate constant and continuous power which is assured at power station and would be available throughout the year is called firm power. What is the difference between weir, and submerged weir. 29. Ans: 400 mm. A candidate who has done his B. E. / B. When the downstream water level rises over the weir crest, it is called submerged weir. Fluid Mechanics PART 1 . Irrotational flow. 10. (3) Variable manipulation element 61. How head varies in pipe flow with change in flow, if pipe diameter is same. Fully solved examples with detailed answer description, explanation are given and it would be easy to understand. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. It is used to determine velocity of flow in pipe. Send me all the mechanical engineering questions and answers in pdf format,please, Send me all questions and answers .it’s very useful to get placed, Kindly send me some basic questions in field of mechanical enginnering, Please send me all pdf of mechanical engineer questions and answers on email, Your email address will not be published. 14. On what factors the efficiency of a centrifugal pump depends ? 18. Bode plot is a logarithmic plot used to represent transfer functions. What are the requirements of a control system ? 2. In hydrostatic bearings lubricant is supplied at a high pressure to a pocket in the bearing. Electrical Engineering Objective Questions MCQ with Answer Free Pdf Download. 47. It is recommended because of its high accuracy, low cost, and extreme flexibility. ; As you practice more SSC JE previous year question papers, you can find a successful strategy for you. What is the purpose of D-slide valve in steam engines ? 39. The methods you need to use to answer these questions are not obvious, and working out how to answer the question is the difficult part. In which type of motion, acaceleration is directly proportional to displacement ? The direction of tangential acceleration may be same or opposite to that of angular velocity. 52. A bearing in which hydrodynamic pressure is generated due to rotation of jour¬nal is called… ? 6. What is the difference between boundary lubrication and fluid film lubrication ? What for Maning’s formula used ? In laminar flow the fluid particles move along smooth, regular paths which can be pre¬dicted in well advance. What is Bode plot ? 9. What is the maximum efficiency of power transmission through a pipe ? If you have a degree or diploma in mechanical engineering. If jet ratio for a pelton wheel is 12 then number of buckets should be …. It is a branch of engineering that is related to industrial application of mechanics and with the tools, machinery and their products. Specific speed of a turbine is 800. Some of the best mechanical engineers have been creating things their entire lives. The interviewer is asking this question to … Tech. 44. Spillway is an essential part of a large dam and provides an efficient and safe means of releasing flood water that exceeds the design capacity of the reservoir. 89. Ans: (i) Revolute pair—single degree of freedom. How does the capacity changes in pipe flow with increase in pipe diameter if head is constant ? The Bode plot consists of two plots namely. 81. Boundary layer is the fluid layer in the neighbourhood of a solid boundary where the effects of fluid friction are predominant. What is the difference between lower pair and higher pair ? Centre of gravity of body should be located below metacentre. 22. A stream line is an imaginary line drawn in a flow field such that a tangent drawn at any point on this line represents the direction of the velocity vector. 11. In rotational flow the vorticity is non zero and in irrotational flow it is zero. It is the line which shows tne variation of piezometric head. What is the direction of tangential acceleration ? 34. 80. 5. Written mechanical aptitude questions typically present a picture or diagram of an object or situation that you must analyze in order to find an answer to a question posed about it. 31. Axial pump has maximum specific speed and reciprocating pump has minimum. Interview questions discussed here are from the engineering curriculum. 27. What is your favourite subject in Mechanical engineering? Mechanical Engineering Interview questions and answers 1. NOTE-We are updating this page daily,we hope we will be upload all PDF shortly so please visit it regularly. of binary joints and half of number of higher pairs is equal to 3/2 of no. I.C. Under what condition the thermal boundary layer thickness will be equal to the hydrodynamic boundary layer thickness ? 0.25 marks will be deducted for every wrong question. 100. On what account the boundry layer exists ?   It is the square root of ratio of inertia force to gravity force. 5. Copyright 2020 , Engineering Interview, Mechanical Engineering Interview Questions Answers PDF. 17. Bad answer: “Relaxing on a beach in Maui,” or “Doing your job.” There’s really no right answer to this question, but the interviewer wants to know that you’re ambitious, career-oriented, and committed to a future with the company. 49. ; Both paper 1 and paper 2 are Multiple Choice Questions. General interview questions for freshers you should prepare: Like every job interview, fresher mechanical engineers are asked some common interview questions related to their background, hobbies, strengths, and weaknesses. What is the necessary and sufficient condition for bodies in floatation to be in stable equilibrium ? Name various functional elements of an instrumental system ? In which type of lubrication system the starting friction is low ? UPPSC AE Previous Year Question Papers get read and then get great score your written Examination hall. 7. So instead of sharing your dream for early retirement, or trying to be funny, give them an answer that Mention the function of intermediate stage in a generalised measurement system. 54. 93. What is the difference between path line and stream line ? At constant head, capacity is proportional to d25. 86. How laminar boundary layer thickness varies on a flat plate ? (iii) Presenting the processed measured variable in quantitative form. What is boundary layer ? 15. What for pycnometer is used ? 96. A stagnation point is one at which velocity is zero. 73. The economic diameter of a penstock required to carry a discharge is the one at which annual costs due to the greater investment do not exceed the annual value of resulting increment energy output. (iii) improvement in speed regulation. 19. This is the mechanical engineering questions and answers section on 'Engineering Mechanics' with the option for disscussion in forum , usefull for competitive examination and entrance test like GATE ESE PSU. 72. 1. 76. What is a signal flow graph ? What is the function of a transducer element ? The ratio of change of momentum of a mass of fluid is equal to the vector sum of all external forces acting on it. Siphon spillway is spillway designed to discharge water in a closed conduit under negative pressure. In run-of-the river schemes which are generally designed for % availability of water, the firm power would be available for at least % of the years during the life of the scheme. Then flow = area of hydrant x. 67. In steady flow the velocity at a given point does not change with time whereas in unsteady flow it changes with time. Solved examples with detailed answer description, disscussion in forum … What are the three functions served by a surge tank in a hydro plant ? SHM. In a signal flow graph, a forward path originates from the input mode and terminates at output mode without encountering any mode more than once. In hydrostatic lubrication. ... All students, freshers can download Civil Engineering quiz questions with answers as PDF files and eBooks. Due to uneven extension and contraction of belt. Acces PDF General Mechanical Engineering Question And Answers General Mechanical Engineering Question And Answers Yeah, reviewing a book general mechanical engineering question and answers could amass your close associates listings. Any obstruction of a streamflow over which water flows is weir. Branches are Civil Engineering, Mechanical Engineering, Electrical Engineering, Electronics & Communication Engineering. 20. Posted … Flow in which adjacent layers mix continuously, so that the flow pattern is unsteady, full of eddies, and apparently without any mathematically expressible regularity. What are the characteristics of precision ? Journal bearing. A mechanism consists of links forming a constrained kinematic chain. (ii) cylindrical pair—two degrees of freedom. 66. State law of conservation of momentum ? How is a Pelton turbine braked ? (1) Primary sensing element e.g. Take the Quiz and improve your overall General Knowledge. What do you understand by run-of-river scheme in hydro power generation ? SSC Junior Engineer Exam will be conducted in two phases. What is the difference between culverts, stilling basin, and standpipe ? 25. my e-mail id: Under what kind and condition of a fluid the velocity potential exists ? 51. ? Reaction turbine. Mechanical Engineering MCQ questions and answers especially for the Mechanical Engineer and who preparing for GATE Exam. 4. A primary transducer senses a physical phenomena and converts it to an analogous output. 43. However in some years discharge in the river may be more than % availability discharge and some extra power known as secondary power can be generated. 78. PART 1  As the questions for the interview is not fixed, it solely depends on your luck that day. What new engineering skills have you recently developed? What is the difference between spillway and siphon spillway ? 94. Mechanical aptitude tests present questions representing mechanical reasoning, PART 1, Most Important 200 Mechanical Engineering Interview Questions & Answers PDF. (7) Data storage and playback element. You must then choose from among several possible responses, only one of which is correct. PART 2 & 3  Culverts are built at the points of lowest valley to pass water across the embankments of highways or railroads. What is the hydraulic-grade line ? Standpipe is used principally for alleviating the transient pressures in large pipeline system. 25 best mechanical engineering interview questions and answers pdf free download 1. Hydraulic Machines PART 1 Nuclear Power Plants PART 1. What is the purpose of Corliss valve in place of D’-slide valve in steam engine ? 95. Examples of Mechanical Engineering Interview Questions & Answers- General Questions. For flow to be laminar in a pipe, the Reynold’s number is less than 2000 and for flow to be turbulent it is greater than 4000. 45. How may types of bonded strain gauges used ? What is the name of nondimensional group for ratio of inertia force to gravity force. Ans: 2. At constant diameter, head is proportional to (flow)2. Steady flow. Its function is ba¬sically to transmit or modify motion. Out of impulse and reaction type hydraulic turbines, which has higher specific speed ? What is the ratio of damping coefficient to critical damping coefficient called ? . 74. 66.67%. Nuclear Power Plants  Kaplan turbine. 55. Pycnometer is used to measure specific gravity of the liquid. Explain the difference between laminar flow and turbulent flow. Hydrostatic lubrication. Define primary and secondary transducers ? 50. Practice free Aptitude tests & get tips, guides and fully worked solutions. 57. 46. Engines PART 1 . 62. 37. Transducer is an element which converts the signal from one physical form to another without changing the information content of the signal. What type of turbine is this ? As understood, achievement does not suggest that you have For fully developed flow through a pipe, what is the ratio of maximum to average velocity ? (ii) The plot of phase angle in degrees (on linear scale) vs. frequency co (on log scale). A signal flow graph of a system is a graphical model in which nodes represent the system variables and directed branches between the nodes represent relationship between the variables. IES examination is conducted every year for 4 branches of engineering. By adding ballasts at the bottom level. Learn how to pass MECHANICAL APTITUDE TESTS with Richard McMunn's free guide below: 68. Eight times. Why thin-plate orifice is frequently recommended for flow measurement in most of the cases ? 0.5 x 12+ 15 = 21. 53. (ii) They are used in the calculation of gain margin and phase margin. PART 1, Compressors, Gas Turbines and Jet Engines  A path line is a curve traced by a single fluid particle during its motion. Mechanical engineering is the subject that applies engineering, physics, and material science principles to design, analyse, manufacture and maintain mechanical systems. Froude number. 41. Distinguish between the shear center and elastic center. Define turbulent flow ? (iv) spherical pair—three degrees of freedom. Turbulent flow is characterised by random and erratic movements of fluid particles resulting in formation of eddies. At turbine rotor exit. A kinematic chain with ‘n’ links can have ‘n’ inversions. What is the difference between spillway and siphon spillway ? Where should centre of gravity of a body lie for it to float in stable equilibrium ? Explain the second law of thermodynamics. Capable of doing other conditioning like differentiation/integration, A/D conversion etc.

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