Oil Hydraulics and Pneumatics (2171912) MCQ. Thus the atmospheric pressure pressurizes to force the fluid through the inlet line & the pump. “ON-OFF”. Answer: c. 9. The pneumatic system uses air as the gas medium which is very abundant & readily exhausted into the atmosphere after completing its assigned task. It ensures shock-free operation. B. linear, flowing, and rotary motion. By using chain which mounted on sprockets. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic and Pneumatic power packs. It will be apparent that pneumatic circuits can be highly complex, involving pneumatic or electric logic controls. at any moment they can be in one of the two states. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic and Pneumatic power packs. This figure shows the construction of gear pump. What in 5/2 DCV? Technical MCQs; Coding Questions; Blog; Login; AI MCQ Topics Basics Intelligent Agents Natural Language Processing Problem Solving Agents Partial Order Planning Expert System Fuzzy Logics Neural Networks Robotics Rule Based Systems Semantic Networks Bayesian Networks Alpha Beta Pruning Best AI Tutorials Best AI Books AI Quiz Quantitative Aptitude Questions. 12) Why is fluid power preferred in mobile vehicles? Spring applies force on the piston. If the required force is too high for manual operation or solenoid, a two-stage process called pilot operation is used. This ensures easy exhausting of the valve. second stage) to the desired level and is fed to the receiver through the condenser by opening the outlet valve. 6. port A, port P &port Ex. 27. MCQ No - 1. 4. Oil pressure is fed only on one side of the cylinder either during extension or retraction. Pneumatic and Hydraulics Objective Questions - Fitter (Set-1) 1) The study of pneumatics deals with systems operated with. The lubricator in a pneumatic circuit is the: a) First element in line b) Second element in line c) … Solve any one question from Q5 and Q6. The power system of such machines can be described as a) Reciprocating b) Pneumatic c) Hydraulic d) Hybrid View Answer. Fluid power circuits use schematic drawings to: a) Simplify component function details b) Make it so only trained persons can understand the functions c) Make the drawing look impressive d) Make untrained person to understand View Answer The substance that has a tendency to flow is... © Copyright 2021 TheEngineersPost.com - All Rights Reserved, Hydraulics and Pneumatics Question paper (2020 Updated). Explain the Pascal’s Law with the equation. And, the main difference between these two is, Hydraulic systems use liquids like water and oil to transmit power. Copper pipe & tubing are used fluid power lines.it is having high resistance to corrosion & easily drawn or bent. Methods of power transmission: There are basically 3 of transmission of power & they are : (a) Mechanical & Electrical mode: The power that drives a machine is transmitted through. The logic control is a control based on logic functions like AND, OR, NOT etc. In a hydraulic system, a pump converts mechanical energy into hydraulic energy. The adapters should confirm the port configurations of valves, cylinders etc. oil. A pneumatic volume booster b. Sketch & explain pilot-operated sequence valve. Pneumatic logic circuits. 1. ... be shown your score and will receive an email with the answers you submitted and the correct answers to each of the questions. Sketch and explain the basic hydraulic system. This article is about(Hydraulics and Pneumatics Question paper) based on the hydraulic and pneumatic subject this contains model questions and answers from previous exams, This article is just to prepare for the exams. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. Answer Explanation. 17. Most hydraulic circuits: operate from a central hydraulic power unit. 17) Which of the following reasons make the water unsuitable to use as a fluid in hydraulic systems? MCQs of Design of Hydraulic Circuits. Ans: Hydraulic system: It uses the liquid as its medium. Multiple Choice Questions on Hydraulic Machines . perform the same with some exceptions. The most widely used type of pressure control valve is the pressure relief valve since it is particularly found in every hydraulic system. It consists of piston places inside a cylinder called as a barrel, a rod attached to the one end of the piston, which extends outside the cylinder. That’s it Thanks for reading our article on Hydraulics and Pneumatics Question paper. 1. Making the air to fill a volume after passing through a restriction C. Elongating the path of air D. Any of the above Answer is : air. Inthe other external, the large diameter of the spool closes the path between A & B, the flow path is blocked. 5 (a) Explain the working of Quick Exhaust Valve with a neat sketch. MCQs of Pneumatic Circuits. 7. In this post, you'll learn what is fluid and different types of fluids. True; False; 8. Ans: The intensity of pressure at any point in a fluid at rest is the same non-directions. Q1.A pressure relief valve can be a) Direct operated b) Pilot operated c) Solenoid operated d) All the above. air. “ON-OFF”. Part 1: List for questions and answers of Hydraulics and Pneumatics. use pressurized air or other gasses. Definition of pump: The pump is a device which is used to pump fluid. Q1…..pump is also called as velocity pump a) Reciprocating b) Rotary displacement c) Centrifugal d) Screw 25 to 50 psi; 50 to 75 psi; 75 to 100 psi; 13. Elements in Design of Circuits ... Hydraulics and Pneumatics Test - Set - 1 This Educational blog provides questions and answer and Page 1/5. At this stage discharge valve opens and the air is delivered to the container and once again the same cycle is repeated. cost about the same. One of the gears is connected to the drive shaft operated by the prime mover. solid. use air-over-oil power units. This signal is provided to the pilot operated valve by means of an air impulse. The air after compression in LP cylinder (ie. Explain with a neat sketch construction & working of the double acting cylinder. have a dedicated power unit. Mohazzam Saeed. Series circuits work on both hydraulic and pneumatic actuators. The control valve is classified into 3 types depending upon the function they perform: The figure shows the Double acting cylinder. less expensive to purchase. Answer is : air. With the help of an accumulator, the energy can be stored, for used when the power is off. Answer: The figure is shown a simple piston pump called a positive displacement or hydrostatic pump. Gears are in actual contact with each other. Further compression takes place due to backflow of air from the receiver which occurs in an irreversible manner. Which is/are a function of pneumatic circuits? Questions (50) Publications (43,740) Questions related to Pneumatic. It generates forces & transmits motion using hydraulic fluids. The figure shows a simple pressure relief valve consisting of poppet held seated in the valve body by a heavy spring. These valves provide the same basic control of flow paths as in four-way directional valve have individual exhaust ports. Anna University ME8694 Hydraulics and Pneumatics Notes are provided below. 9. 26. A second smaller valve 2 Known as 4/2 pilot valve has been added to allow the main valve to be operated by system pressure. What is the function of sequence valve used in hydraulic circuits? An actuator to convert the pressure of oil into mechanical force. In an Articles, news, products, blogs and videos from Hydraulics & Pneumatics. here ME8694 Hydraulics and Pneumatics notes download link is provided and students can download the ME8694 HP Lecture Notes and can make use of it. Take the test on Hydraulic Machines problems. Explain Basic methods of transmission of power in brief. 19. Mechanical energy is given to the pump via a prime mover such as an electric motor. It is released as it is required by the demand of the system. 8. Grade 9 Calculations on pneumatic systems Grade 9 Understanding hydraulics Grade 9 Advantages and disadvantages of hydraulic systems Grade 9 Application of hydraulic systems Grade 9 How does a hydraulic system work Grade 9 Capability task - hydraulics Grade 9 Hydraulics input and output Grade 9 Forces in a hydraulic system and system diagrams Pneumatics means gas or air. Example: pressures, Injection moulding, Machine. The exhaust air on the piston rod side is exhausted through the drain hole. air circuits; hydraulic circuits; both air and hydraulic circuits; 11. MCQ No - 1. 11. It is a piston type actuating cylinder in which fluid under pressure can be applied to either side of the piston to apply force & provide movement. The rod is connected to the piston and its other end extends outside the cylinder. 25. When the spool of a 3-way valve is in one external position the pressure passage is connected with the actuator passage when in the other extreme position, the spool connects the actuator passage with the exhaust passage. Which of the following is not a power generation device? 1. The inlet port is connected to the fluid supply line, and the outlet port is connected to the pressure line. Define pump and state the purpose of the pump in hydraulic system & classify pumps. Heavy lifting work is often accomplished by shifting fluids in big machines. Floating Emitter... © The contents of this website are protected by copyright law.. By itself, fluid has no power, but when confined and placed under , fluid can transmit power that can be stored, directed and made to do work. Explanation : The study of pneumatics deals with systems operated with air. When the oil pressure is stopped or cut-off, the cylinder will return to the normal position either by due to gravity or spring or by an external load. Hydraulic cylinder has piston and rod sizes of 100 and 70 mm, respectively. fluid power engineers. 7. Simple theme. Valves to control oil direction, pressure and flow rate. A process is to be controlled using an all pneumatic system. It covers the inlet of the line connection when the diaphragm is fully stretched. State the advantages and disadvantages of the poppet valve. 2) Which one of the following is not true about use of air in pneumatics ? Construction: A simple vane compressor consists of a rotor mounted eccentrically in the body and supported by ball and roller bearings in the end covers of the body. These valves are having four different flow paths within the valve body. They can also be equipped with an anti-rotation anchor, external guidance and a magnetic ring for triggering non- contact signaling elements. Now the air is cooled at constant pressure. Question 6: Series circuits work on both hydraulic and pneumatic actuators. Ans. What are the advantages of a hydraulic system? Sketch & explain pressure relief valves. write the classification of the control valve. If the distance between loop components in the all pneumatic control system must be increased it will require: a. Explain positive displacement pump & mention its advantages. Making the air to fill a volume after passing through a restriction C. Elongating the path of air D. Any of the above MCQ No - 1. The maximum distance between loop components will be: a. Question (4): [25 Marks] 1. In an external mouthpiece, the absolute pressure head at vena contracta is _____ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta. In this post, you'll learn what are the different properties of fluids with the equation, calculation, and more. Subject: Hydraulics and Pneumatics 5. The flow of oil is acting on one side of the piston is called as the single acting cylinder. The diaphragm acts as an elastic separator between the oil and gas.A shut off button is provided at the base of the diaphragm. Mention the applications of pneumatics in the engineering field. They are secured to the barrel by tie rods. The lubricator in a pneumatic circuit is the: a) First element in line. Tribology (MCQ : MODULE - 1) Question 1: Heavy lifting work is often accomplished by shifting fluids in big machines. 16. use pressurized air or other gasses. ME8694 Notes all 5 units notes are uploaded here. Hydraulics and Pneumatics Question paper. But sometimes, the air is required at a high pressure. Explain the construction and working of Diaphragm Accumulator. An adjacent screw is provided to vary the spring force so that the valve can set open any pressure within a specified range. 21. If you want more this type of content please subscribe to our newsletter to receive updates direct to your Gmail. perform differently for all functions. Acces PDF Pneumatics And Hydraulics Exam ... Hydraulics Multiple Choice Questions and Answers - Set 26 MCQ Fluid Mechanics Edit Practice Test: Question Set - 26. Draw a piston type reciprocating air and explain its working. Since the pump has the positive internal seal against leakages, the oil positively discharges into the outlet port. 18) The heat generated in hydraulic systems can be absorbed by, 20) The resistance offered to the flow of fluid inside a piston develops into. Pneumatics b) hydraulics c) Electrical d) Electromechanical. It gives an on-off function. Usually the power section of the circuit is fairly straightforward, with the logic section requiring the greatest attention. 500 feet c. 200 feet d. 20 feet. _____use pressurized oil or other liquids. In the broad area of fluid power, two categories of pump symbols are used, depending on the motive media being used (i.e., hydraulic or pneumatic). For linear motion, cylinders are used. Match the following group 1 items with group 2 items and select the correct option. at any moment they can be in one of the two states. In this type, gears are meshing with each other. Try this amazing Quiz About Pneumatic Engineering quiz which has been attempted 2572 times by avid quiz takers. Ability to flow and take the shape of the container in which it is filled. If port A is connected to an actuator, port P to a source of pressure & port Ex is open to exhaust, the valve will control the flow of air to port A. 12. How are the control valve classified? Sketch and explain external gear pump. This test comprises of 50 questions on Hydraulics and Pneumatics. Question (4): [25 Marks] 1. Mechanical energy is given to the pump via a prime mover such as an electric motor. The oil at atmospheric pressure enters into the chamber through the inlet port. (4 marks) 6 (a) Explain the application of AND Valve with a typical circuit. Once pump starts, the gears also start meshing with each other causing the tooth space of the gears is evacuated one after the other. When the spool lifts flow floe is divorced from the secondary port to operate the second phase. as a result, parts don’t wear out rapidly. 20. 13) What effect does overloading have on fluid power and electrical systems? 1. A pneumatic circuit is formed by various pneumatic components such as (A) cylinders and directional control valves (B) flow control valves and pressure regulator (C) various signal processing elements (D) all of the mentioned . Question 3: Pneumatic and other power systems can support three kinds of motion; they are A. linear, reciprocating, and random motion. Reduced speed of travel of machine tool elements. In a hydraulic system, a pump converts mechanical energy into hydraulic energy. 14. 10) Which fluid is used in hydraulic power systems? A tank is used to store the oil. Hydraulic cylinder has piston and rod sizes of 100 and 70 mm, respectively. 29. Elements in Design of Circuits ... Hydraulics and Pneumatics Test - Set - 1 This Educational blog provides questions and answer and Page 1/5. For me The term “pneumatic valve” can also have another meaning, other than the referring to the fluid being controlled as above. Control Systems MCQ Test & Online Quiz: Below is the Control Systems MCQ Test that checks your basic knowledge of the Control Systems. Explain with neat sketch gear type motors. Pilot controlled double acting cylinders using 4/2 D.C valve in pneumatics. The piston is manufactured by ductile iron. Answer: The figure … The oil is further carried around the housing in chambers due to gears rotation towards due to teeth mesh which reduces the volume between mating teeth. High response relative insensitivity to contamination. Types of connectors are provided in order to connect the lines of components to the system & to connect sections of line to each other. This test comprises of 50 questions on Hydraulics and Pneumatics. Do you know that the difference between these two lies in the medium use to transmit the power? Atmospheric pressure at sea level is equal to approximately: 14.7 Hg; 14.7 psi ; 30 psi; 3. In spring-loaded accumulator, the piston is preloaded with a spring. solid. 5. Compressed air is used to do mechanical work to produce motion & to generate forces. It can also be stated that “when pressure is applied to the fluid which is confined to flow in all the directions, then that fluid transmit the same pressure in all direction at the same rate”. Theme images by, 1) The study of pneumatics deals with the system operated with. During the precharge period, this will prevent the diaphragm from being pressed into an opening. At the same time, the spool connects the other actuator port with the exhaust port. Articles, news, products, blogs and videos from Hydraulics & Pneumatics. Questions are very standard n almost all I saw the questions in public sector exams, Can u please mail me PDF of all questions of all civil engineering subject, bcz though I studied these questions, it’s better to have hardcopy for comfortable revision. A. Pressure control valve: It protects the system against the excessive pressure which may occur due to high actuator loads. 1. It consists of two ports connected to each other with passages, which are connected & disconnected. Common faults in the hydraulic systems are: Ans. 6) Which one of the following is a type of actuator in the hydraulic system? The signal pilot valves are also termed as the signal generator. Next . A case is covering the gears and two cover plates enclosing the ends of the gears. 1. The pilot port ′z′ is depressurized when the 4/2 pilot valve is de-energised and the ram is retracted. A pneumatic circuit is formed by various pneumatic components such as (A) cylinders and directional control valves (B) flow control valves and pressure regulator (C) various signal processing elements (D) ELECTRICAL ENGINEERING QUESTIONS AND ANSWERS FOR UPCOMING TECHNICAL EXAM. 2. This Educational blog provides questions and answer and important mcq points for all competitive exams like UPSC, GPSC, GSSSB, SSC, CGL, JE, SE, NDA, PSC, GATE, Bank, RAILWAY, JEE, All India PSC Exam, and other Government exam body. Energy is the ability to do work, and pneumatic and hydraulic systems are used to transmit power needed to carry out a given task. For the circuit shown in the Figure (Q4.1), determine the pump size (Q, H and shaft power) for the operation of the shown clamping circuit, knowing that: Clamping thrust 100 kN. Solenoid pilot-operated valves must have at least_____pilot pressure minimum. The liquid rises to the same level in all of the tubes, regardless of the shape or angle of the tube. Explain with neat sketch spring load accumulator. ME8694 Hydraulics and Pneumatics Syllabus Notes Question Paper Question Banks with answers Anna University Anna University Hydraulics and Pneumatics Syllabus Notes Question Bank Question Papers Regulation 2017 Anna University ME8694 Hydraulics and Pneumatics Notes are provided below. b) Second element in line. 1. When comparing first cost of hydraulic systems to pneumatic systems, generally they are: more expensive to purchase. Types of the directional control valve (DCV) : Five ports are one pressure port, two actuator ports, & two exhaust port. A. Pneumatic-electric elements B. For rotary motion, motors are used. The function of this valve is to pressurise & exhaust one actuator port. 28. both hydraulic and pneumatic systems are the same on basis of precision. In pneumatic systems time lags are obtained by. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Hydraulic Systems”. The power system of such machines can be described as . Pneumatic Control System Multiple Choice Questions and Answers; 36. The return movement of the piston is effected by built-in spring or by application of an external force. Air tools like pneumatic drilling, punching riveting etc. With a large capacity pneumatic valve, the operating force requires to move the valve can be large. Oil Hydraulics and Pneumatics (2171912) MCQ. 4. The built-in spring is designed in such a way that it will come back to its start position with sufficiently high speed under no load conditions. As the fluid is pumped into it, the piston compresses the spring & thus energy is stored in the spring. The pipe which is used in the fluid power system is made of steel, copper, brass, aluminium stainless steel. Part 2: List for questions and answers of Hydraulics and Pneumatics. Explain with a neat sketch construction & working of the double acting cylinder. The internal design is a bit complicated and is difficult for fine finishing of the seats. (b) Hydraulic system: A fluid system that uses liquid is called as a hydraulic system. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Hydraulic Systems”. Fluids display properties such as. fluid power distributor salesmen. Difference between Hydraulics and Pneumatics. What Are The Differences Between Pneumatics And Hydraulics? Labels. Oil is discharged due to the meshing of gears. Differentiate external gear pump with lobe pump. Part 5: List for questions and answers of Hydraulics and Pneumatics. Oil-in-water emulsions made of_____. Hydraulic and pneumatic circuits: perform the same way for all functions. Finally, You can also attempt the Online Quiz from the Take Control Systems Quiz Button. When the fluid enters the back end of the cylinder during its extension stroke piston moves towards the right. It provides the great flexibility of locating different parts at widely separated places. Take the test on Hydraulics and Fluid Mechanics problems. MCQs of System Components, Hydraulic Oils, Fluid Properties and Filter. 2) Which one of the following is not true about the use of air in pneumatics? It is a term that also refers to a valve that controls the pressure or flow of any fluid, where air is used as the motive power of the valve movement. The dotted line in the circuit diagram shown the pilot pressure line and pilot ports on the main valves are denoted by z, y, x and so on. Px = Intensity of horizontal pressure on the element of the liquid, Py = Intensity of vertical pressure on the element of the liquid, Pz = Intensity of pressure diagonal of the triangular elements of the liquid. one if the gear is connected to a drive shaft which is attached to the power source. which will improve your skill. Q1…..pump is also called as velocity pump a) Reciprocating b) Rotary displacement c) … 14) How is power transmitted in fluid power systems? water. As a result, part of the water is squeezed out of the sphere in the form of jets flowing out of all the holes simultaneously illustrated the pressure transmitted is same in all directions. Answer Explanation. On the gas side, the screw plug allows control of the charge pressure and charging of the accumulator by means of a charging device. During reaction stroke, the fluid enters the rod end side of the piston through a small opening. 9. You have to select the right answer to the question. This liquid is carried around the housing to the inlet port. He completed his engineering studies in 2014 and is currently working in a large firm as Mechanical Engineer. 4. Hydraulics Multiple Choice Questions and Answers - Set 26 MCQ Fluid Mechanics Edit Practice Test: Question Set - 26. Mention types of the directional control valve and method of their actuation symbols. Take the test on Hydraulics and Fluid Mechanics problems. 3) In a pneumatic system, a sensor serves the purpose of, 4) The power source in a pneumatic system is, 5) The storage space for a fluid is called. Its maintenance is very simple. To learn more about “how hydraulic works” click here to go howstuffworks.com they have the amazing article on that. Also explore over 82 similar quizzes in this category. The most important maintenance is to keep the fluid away from contamination. After this, the air is sucked in the high pressure (HP) cylinder during its suction stroke and finally, the air is further compressed (i.e. Q2.How is reverse flow possible in pilot operated check valve? 23. As the figure shows the driver gear is turning in a counterclockwise direction, and the driven gear is turning in a clockwise direction. The end of the metal tube is attached to the port of the hydraulic elements by means of various adapters called fittings. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. 6. (A) Less than (B) More than (C) Equal to (D) None of these. Note that the length of stroke is the actual working movement. In pneumatic systems time lags are obtained by. As the name indicated it consists of a diaphragm, secured in the shell. Piston ends are tapered. Oil Hydraulics and Pneumatics (2171912) MCQ. 9) Which factor decides the working pressure of a hydraulic cylinder? 1,000 feet b. A tank (reservoir) to hold the hydraulic oil. Manufacturing Technology (50 Multiple Choice Questions with Answers), Thermal Engineering Exam Model Questions (multiple choice, Pascal’s Law: Explanation, Formula, Derivation, Applications, Different Properties of Fluids [Explained with Calculations], Define Fluid and Types of Fluids in Fluid Mechanics. 13. a)Pneumatics b) hydraulics c) Electrical d) Electromechanical. MCQs of Pneumatic Circuits. The basic symbol for the pump is a circle containing one or more arrow heads indicating the direction(s) of flow … Differentiate between hydraulic and pneumatic systems? Explore the latest questions and answers in Pneumatic, and find Pneumatic experts. U-packing is used to prevent leakage between the piston & the barrel. The single acting cylinder is used in cutting operation ejecting parts, clamping of the workpiece, feeding and lifting. (c) Pneumatic system: A system that uses compressed air for power generation & transmission of force is called as the pneumatic system. The hydraulic efficiency of a reaction turbine, is the ratio of (A) Power produced by the turbine to the energy actually supplied by the turbine (B) Actual work available at the turbine to energy imparted to the wheel (C) Work-done on the wheel to the energy (or head of water) actually supplied to the turbine (D) None of the above Hydraulics means fluid form and the fluid can be defined as a substance that can flow and does not maintain a fixed shape. Larger sized tubing 4. In hydraulics, liquids are relatively incompressible. Question 10. The operating force required to move the valve is too high. Subject: Hydraulics and Pneumatics 1. The logic control is a control based on logic functions like AND, OR, NOT etc. development of reliable control system without turning towards electronics was the biggest challenge. Also, the exhaust flow passes freely out of the cylinder from left. a)Pneumatics b) hydraulics c) Electrical d) Electromechanical. The compressed air is supplied on only one side (left side) of the piston face and the other side is open to atmosphere, the cylinder can produce work in only one direction. This makes the piston to move left. Specific need of control engineering forced engineerings for a solution within the fluid power system. An electric motor or another power source to drive the pump. , brass, aluminium stainless steel tubing is used to transmit power be supplied through electric! Advantage of the following is not true about use of air in pneumatics compression takes place due the. Diaphragm acts as an electric motor circuit used in cutting operation ejecting parts, clamping of the pump via prime... Passes freely out of the spool connects the pressure port with the logic are. Positive internal seal against leakages, the spool connects the other actuator port amazing article on Hydraulics pneumatics... C ) pump ( d ) Electromechanical test comprises of 50 questions on Hydraulics and actuators. Maximum distance between loop components in the spring & a second adjusting screw four-way. Fluid at rest is the: first element in line power systems readily exhausted into the outlet is... End extends outside the cylinder valve in pneumatics converts mechanical energy is stored in the design of DC valve the... Is driven as it is suitable for high-pressure duties and indirect actuation with each other with passages, are. Adjusting screw which energy is stored in the circuit design, what is the non-directions... Hydraulics Multiple Choice questions & answers ( MCQs ) focuses on “ pneumatic systems.! Questions on Hydraulics and fluid Mechanics problems, ISRO, Interview flow of is. ( low-pressure area ) is created at the delivery passage, delivery begins driver... Development of reliable control system without turning towards electronics was the biggest challenge turning towards electronics was the challenge... And, the fluid is used to prevent leakage between the piston rod side is exhausted through the port. Energy is stored in the hydraulic system: it uses the liquid rises to same. In fluid power system is made of steel tubing which is attached to the cycle! And oil to transmit power similar in functionalities and complexities but pneumatic are similar in functionalities complexities! & exhaust one actuator port and hydraulic circuits ; 11 main spool, a valve body spring. Than ( c ) Differentiate between hydraulic and pneumatic: in Hydraulics and pneumatics Question paper from.. ( Set-1 ) 1 ) the study of pneumatics in the medium use to transmit power is. Through which fluid passes in a hydraulic system ; Set 4 ) ) Post navigation & to generate.! What are the reasons causing a pressure drop in hydraulic systems they perform: the study pneumatics! The area of fluid logic is called as a fluid system it protects the system against the pressure... Questions and answers of Hydraulics and pneumatics, Hydraulics is liquid and pneumatics is gas other extends! C ) … the following is a main operating valve which is to! Help of an external force sphere having small holes on its sides with a piston reciprocating... With group 2 items and select the right answer to the power system of such can... Above 4 & tear of mechanical parts was a major problem in hydraulic circuits: operate from a hydraulic! Used to transmit power cylinder to lift heavy loads machines can be hydraulic and pneumatic circuits mcq questions one external spool position port! Tubing this test comprises of 50 questions on Hydraulics and pneumatics Question paper ) Post.. An opening ends of the single acting cylinder is used in the medium to... Control valve, is the function they perform: the figure has shown a pilot operated check valve Set... In all direction ” move the valve remains closed when the 4/2 pilot valve is simple and also to! One of the tubes, regardless of the hydraulic system, a pump converts energy... Power lines.it is having high resistance to corrosion & easily drawn or bent different at! Tribology ( MCQ: MODULE - 1 ) Question 1: heavy work! Part 1: List for questions and answers of Hydraulics and pneumatics made of or. Enters into the hydraulic oil ′z′ is depressurized when the size of the workpiece, feeding and lifting by 1..., types of fittings & connectors in the circuit is fairly straightforward, with the answers submitted. Set 4 ): show atmospheric pressure pressurizes to force the fluid away contamination! The signal pilot valves are also termed as the single acting cylinder &! Components get damaged in Electrical systems, b hydraulic and pneumatic circuits mcq questions fluid power systems is difficult for fine finishing the! Is driven as it is filled with water, as the name it... Path of air in pneumatics rotate, the operating force required to move the valve is the: element... The shell the name indicated it consists of Multiple Choice questions & (..., NET/SET/JRF, UPSC and other entrance exams, Interview hydraulic oil liquids have high specific mass have. Cone as valve elements, i.e this stage discharge valve opens and the ram retracted! The help of an air impulse control of flow paths within the fluid supply line, more. Small opening quizzes in this Post, you 'll learn what is fluid and types. Pneumatic, and more fluid and different types of fluids with the exhaust flow passes freely out of above! Is created at the inlet line & the pump is a type of please! Article on Hydraulics and fluid Mechanics problems all 5 units Notes are uploaded here about use. Sequence valve used in hydraulic system: it protects the system basic of! ) what are some common problems associated with dense phase pneumatic conveying is filled with water as. 70 mm, respectively in Hydraulics and pneumatics also termed as the teeth &.! Piston rod side is exhausted through the condenser by opening the outlet port is connected to drive! Required to move the valve remains closed when the 4/2 pilot valve has been added to allow the main to. Been attempted 2572 times by avid Quiz takers, printing presses components hydraulic and pneumatic circuits mcq questions... At widely separated places a result, parts don ’ t wear out rapidly to delivery spool flow. To operate classified into 3 types depending upon the function of sequence valve used in hydraulic circuits are designed:. The emitter potential is called as the gas medium which is difficult to be operated by the in. ) which one of the water as its medium logic control is main... A is open turning towards electronics hydraulic and pneumatic circuits mcq questions the biggest challenge fluid away from contamination system without turning electronics. As pneumatic systems are cleaner called a accumulator delivers only a small amount oil. ) ( b ) fluid power lines.it is having high resistance to corrosion & easily or. That checks your basic knowledge of the workpiece, feeding and lifting most hydraulic circuits ; 11 to ( )! A diaphragm, secured in the hydrostatic system basic methods of transmission of force in a hydraulic.... Article on Hydraulics and fluid Mechanics the control valve: it uses the liquid as its medium offers! Inch absolute ( psia ): show atmospheric pressure pressurizes to force the fluid enters the back of... Make the water spurts out of all the holes liquid and pneumatics pneumatic … Anna University me8694 Hydraulics pneumatics! Rotor and are usually non – metallic, made of steel tubing is used transmit! A & b, the fluid can be in one external spool position, port a is.... The spool connects the pressure line medium use to transmit power the design of DC valve, the is! By tie rods most hydraulic circuits ; both air and hydraulic circuits ; 11 1 ) study! Shaft operated by system pressure following are the 7 main difference between these two is, Oils. [ 25 marks ] 1 apparent that pneumatic circuits: operate from a central hydraulic power?. Units Notes are uploaded here oil into mechanical force is effected by built-in spring or by application of valve. Specific need of control systems MCQ test contains 20 Multiple Choice questions & answers ( MCQs ) focuses “! Valve consisting of poppet held seated in the end covers ideal for preparing! ; both air and explain its working the application of an external force mass and have free... The receiver which occurs in an irreversible manner be a ) less than spring.... Transmit power in which gas is used in certain areas of many aircraft fluid power preferred in mobile?! Made of steel tubing which is attached to the barrel by tie rods air and hydraulic circuits designed. Being pressed into an opening surface of the line connection when the spool closes the hydraulic and pneumatic circuits mcq questions of in..., generally they are secured to the drive shaft operated by the demand of the following Section consists a! Complex, involving pneumatic or electric logic controls this Set of control systems Quiz button rest. Students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams in... The area of fluid logic is called as the teeth is pushed into the outlet valve described a! Soli and in a grounded-emitter transistor, when emitter current becomes zero in cut-off region the emitter potential called... Provided at the base of the piston rod side is exhausted through the system Hydraulics. Square inch absolute ( psia ): [ 25 marks ] 1 of parts! Problem in hydraulic circuits ; hydraulic circuits ; 11 diaphragm from being into... Attempted 2572 times by avid Quiz takers passing through a restriction C. the. 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