Pneumatic and Hydraulics ... Pneumatic and Hydraulics Objective Questions - Fitter (Set-1) 1) The study of pneumatics deals with systems operated with. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. It can be defined as a branch of fluids power in which gas is used as a fluid. 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. Piston ends are tapered. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. 19. 6. 21. 4. Next . 24. 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. 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 What are the common faults in the hydraulic system? The cylinder barrel is made of steel tubing which is seamless. less expensive to purchase. water . Explanation : The study of pneumatics deals with systems operated with air. 12) Why is fluid power preferred in mobile vehicles? It covers the inlet of the line connection when the diaphragm is fully stretched. And, the main difference between these two is, Hydraulic systems use liquids like water and oil to transmit power. A pump converts mechanical energy into hydraulic energy. 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. This test comprises of 50 questions on Hydraulics and Pneumatics. Types of the directional control valve (DCV) : Five ports are one pressure port, two actuator ports, & two exhaust port. Labels. This test comprises of 50 questions on Hydraulics and Pneumatics. 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. The components of logic control are sensors and switching elements called binary elements, i.e. Ability to flow and take the shape of the container in which it is filled. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. Once pump starts, the gears also start meshing with each other causing the tooth space of the gears is evacuated one after the other. Articles, news, products, blogs and videos from Hydraulics & Pneumatics. Q1.In hydraulic systems a) The mechanical energy is transferred to the oil and then converted into mechanical energy 14) How is power transmitted in fluid power systems? In this type, gears are meshing with each other. Sketch and explain the basic hydraulic system. The substance that has a tendency to flow is... © Copyright 2021 TheEngineersPost.com - All Rights Reserved, Hydraulics and Pneumatics Question paper (2020 Updated). 1. 16) Which energy is used to transmit power in the hydrostatic system? purpose of pump: Mechanical energy can be supplied through an electric motor. The valve 1 is a main operating valve which is used to move the ram. 9) Which factor decides the working pressure of a hydraulic cylinder? 8) What are the reasons causing a pressure drop in hydraulic systems? 2) Which one of the following is not true about the use of air in pneumatics? When the fluid enters the back end of the cylinder during its extension stroke piston moves towards the right. In Position-2 when the spool is pushed in the inner directions, port P and A gets connected to each other and B to S while port R remains closed. Explain with a neat sketch construction & working of the double acting cylinder. Q2.How is reverse flow possible in pilot operated check valve? Pilot controlled double acting cylinders using 4/2 D.C valve in pneumatics. Solenoid pilot-operated valves must have at least_____pilot pressure minimum. Question (4): [25 Marks] 1. 25 to 50 psi; 50 to 75 psi; 75 to 100 psi; 13. _____use pressurized oil or other liquids. When the operation of two hydraulic cylinders is required to be performed in sequence by using a single direction valve called pilot-operated sequence valve is used. Gears are in actual contact with each other. In pneumatic systems time lags are obtained by. He is also an author and editor at theengineerspost.com. oil. The logic control is a control based on logic functions like AND, OR, NOT etc. Pneumatic Control System Multiple Choice Questions and Answers; 36. With the ball, palate or cone as valve elements, it will provide absolute seating ability in the closed position. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. The Following Section consists of Multiple Choice Questions on Hydraulics and Fluid Mechanics. Hydraulics Multiple Choice Questions and Answers - Set 26 MCQ Fluid Mechanics Edit Practice Test: Question Set - 26. Next, the piston is driven up with the inlet valve closed and the outlet valve open, driving the same volume of fluid to the pump outlet. A tank is used to store the oil. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. Hydraulics means fluid form and the fluid can be defined as a substance that can flow and does not maintain a fixed shape. Q1.A pressure relief valve can be a) Direct operated b) Pilot operated c) Solenoid operated d) All the above. the principle operation of pilot operated valve is shown in the figure. As the piston driven down, the inlet valve opens and a volume of fluid (determined by the cross-section area of the piston and the length of stroke) is drawn into the cylinder. In spring-loaded accumulator, the piston is preloaded with a spring. In a hydraulic system, a pump converts mechanical energy into hydraulic energy. In this page you can learn various important pneumatic control system multiple choice questions answers, mcq on pneumatic control system, short questions and answers on pneumatic control system, sloved pneumatic control system objective questions answers etc. Piping to carry oil from one location to another. U-packing is used to prevent leakage between the piston & the barrel. 2) Which one of the following is not true about use of air in pneumatics ? ELECTRICAL ENGINEERING QUESTIONS AND ANSWERS FOR UPCOMING TECHNICAL EXAM. Two ports, inlet and delivery are located on the opposite ends of the gear casing. As the name indicated it consists of a diaphragm, secured in the shell. second element in line. This signal is provided to the pilot operated valve by means of an air impulse. Pneumatics means gas or air. Take the test on Hydraulics and Fluid Mechanics problems. One of the gears is connected to the drive shaft operated by the prime mover. Stainless steel tubing is used in certain areas of many aircraft fluid power systems. An adjacent screw is provided to vary the spring force so that the valve can set open any pressure within a specified range. Reduced speed of travel of machine tool elements. Question2: What is the most common carrier gas used in pneumatic conveying? 26. at any moment they can be in one of the two states. Direct solenoid-operated valves: are only DC current activated; are only AC current activated ; operate off either AC or DC current; 12. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Hydraulic Systems”. Direction control valves & flow control valves are used. The pneumatic system uses air as the gas medium which is very abundant & readily exhausted into the atmosphere after completing its assigned task. Mechanical energy is given to the pump via a prime mover such as an electric motor. Explain Basic methods of transmission of power in brief. Pneumatic logic circuits. Oil Hydraulics and Pneumatics (2171912) MCQ. For linear motion, cylinders are used. As the fluid is pumped into it, the piston compresses the spring & thus energy is stored in the spring. Correct Answer. 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. first stage) is forced into the intercooler. 8. It provides the great flexibility of locating different parts at widely separated places. Q1…..pump is also called as velocity pump a) Reciprocating b) Rotary displacement c) Centrifugal d) Screw It gives an on-off function. When each blade arrives at the delivery passage, delivery begins. 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. Elements in Design of Circuits ... Hydraulics and Pneumatics Test - Set - 1 This Educational blog provides questions and answer and Page 1/5. Explain with neat sketch. This figure shows the construction of gear pump. Pressure control valve: It protects the system against the excessive pressure which may occur due to high actuator loads. Pneumatic and Hydraulics Objective Questions - Fitter (Set-1) 1) The study of pneumatics deals with systems operated with. 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. Following are the 7 main difference between hydraulics and pneumatic: In hydraulics and pneumatics, hydraulics is liquid and pneumatics is gas. If the required force is too high for manual operation or solenoid, a two-stage process called pilot operation is used. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. Floating Emitter... © The contents of this website are protected by copyright law.. 9. In brack system of automobiles, railway coaches, wagons, printing presses. Tribology (MCQ : MODULE - 1) Question 1: Heavy lifting work is often accomplished by shifting fluids in big machines. last element in line. MCQ No - 1. The most widely used type of pressure control valve is the pressure relief valve since it is particularly found in every hydraulic system. Answer: The figure is shown a simple piston pump called a positive displacement or hydrostatic pump. 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. Unlike roots blower, some or all of the compression is obtained before the trapped volume is opened to delivery. (A) Flow control valve changes the direction of flow (B) Flow control valve can adjust the flow rate of fluid (C) Answer Explanation. Explain the Pascal’s Law with the equation. 6. Pneumatics b) hydraulics c) Electrical d) Electromechanical. Pneumatic Control System Multiple Choice Questions and Answers; 36. Series circuits work on both hydraulic and pneumatic actuators. High response relative insensitivity to contamination. During reaction stroke, the fluid enters the rod end side of the piston through a small opening. This ensures easy exhausting of the valve. Fluids display properties such as. 15. oil. Intensifier has diameters of … Usually the power section of the circuit is fairly straightforward, with the logic section requiring the greatest attention. Most hydraulic circuits are designed by: mechanical engineers. 10. Sketch and explain external gear pump. The components of logic control are sensors and switching elements called binary elements, i.e. Ans: The intensity of pressure at any point in a fluid at rest is the same non-directions. 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. First, the fresh air is sucked from the atmosphere through the suction filter and inlet valve in low pressure (LP) cylinder during its suction stroke. 13. Larger sized tubing 10) Which fluid is used in hydraulic power systems? Answer D. MCQ No - 2. Mohazzam Saeed. Explore the latest questions and answers in Pneumatic, and find Pneumatic experts. (A) Engine (B) Relay (C) Pump (D) Compressor. use pressurized air or other gasses. fluid power engineers. 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. 5. A pneumatic volume booster b. 17. A. In an No, when the piston moves upward during the delivery stroke the air is compressed and the pressure increases till it reaches the discharge pressure. The mode of transmission of force in a soli and in a liquid is as shown in fig. 1. 25. Ans. 2) Consider a hollow sphere having small holes on its sides with a piston inside. Simple theme. In one external spool position, Port A is open to port B, the flow path through the valve is open. The function of this valve is to pressurise & exhaust one actuator port. 1. which will improve your skill. Explain the construction & working of the single acting cylinder of the pneumatic system. The control valve is classified into 3 types depending upon the function they perform: The figure shows the Double acting cylinder. it doesn’t require any lubrication, as it is very much required in all mechanical drives. perform differently for all functions. Exhaust flow passes freely out of the cylinder. Multiple Choice Questions on Strength of Materials. use air-over-oil power units. This action produces a positive flow of liquid into the system. ... Identify the path through which fluid passes in a given circuit. Q1…..pump is also called as velocity pump a) Reciprocating b) Rotary displacement c) … Answer is : air. He completed his engineering studies in 2014 and is currently working in a large firm as Mechanical Engineer. Radial motor … This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Pneumatic Systems”. Now the air is cooled at constant pressure. Questions (50) Publications (43,740) Questions related to Pneumatic. In hydraulics and pneumatics, hydraulics is liquid and pneumatics is gas. Reduction heat due to compression by using intercoolers. at any moment they can be in one of the two states. Difference between Hydraulics and Pneumatics. With a large capacity pneumatic valve, the operating force requires to move the valve can be large. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic and Pneumatic power packs. _____use pressurized oil or other liquids. For rotary motion, motors are used. A. Pneumatic-electric elements B. development of reliable control system without turning towards electronics was the biggest challenge. MCQ No - 1. 1,000 feet b. fluid power distributor salesmen. At the same time, the spool connects the other actuator port with the exhaust port. Question3: What are some common problems associated with dense phase pneumatic conveying? Oil pressure is fed only on one side of the cylinder either during extension or retraction. The second gear is driven as it meshes with the driven gear. 6) Which one of the following is a type of actuator in the hydraulic system? Explain with a neat sketch construction & working of the double acting cylinder. perform the same with some exceptions. Articles, news, products, blogs and videos from Hydraulics & Pneumatics. In this post, you'll learn what is fluid and different types of fluids. 1. 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. Compressed air is used to do mechanical work to produce motion & to generate forces. air. They are secured to the barrel by tie rods. Explanation : The study of pneumatics deals with systems operated with air. 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. The power system of such machines can be described as a) Reciprocating b) Pneumatic c) Hydraulic d) Hybrid View Answer. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Hydraulic Systems”. 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. There are different types of connectors & they are: W-F-B-T-F-F-S-C. A single stage reciprocating when the piston moves downwards during the suction stroke, the air is drawn into the cylinder through the inlet valve. When the spool lifts flow floe is divorced from the secondary port to operate the second phase. The logic control is a control based on logic functions like AND, OR, NOT etc. 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. These valves provide the same basic control of flow paths as in four-way directional valve have individual exhaust ports. The power system of such machines can be described as . With the help of an accumulator, the energy can be stored, for used when the power is off. In hydraulics, liquids are relatively incompressible. Question 10. In pneumatic systems time lags are obtained by. Liquids have high specific mass and have a free surface. 12. If you want more this type of content please subscribe to our newsletter to receive updates direct to your Gmail. Subject: Hydraulics and Pneumatics 1. This Control Systems MCQ Test contains 20 Multiple Choice Questions. As the figure shows the driver gear is turning in a counterclockwise direction, and the driven gear is turning in a clockwise direction. This test comprises of 50 questions on Hydraulics and Pneumatics. Try this amazing Quiz About Pneumatic Engineering quiz which has been attempted 2572 times by avid quiz takers. 2. MCQ No - 1. 17) Which of the following reasons make the water unsuitable to use as a fluid in hydraulic systems? By using chain which mounted on sprockets. The piston exerts equal pressure on the surface of the water. 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. Inthe other external, the large diameter of the spool closes the path between A & B, the flow path is blocked. On the gas side, the screw plug allows control of the charge pressure and charging of the accumulator by means of a charging device. Types of connectors are provided in order to connect the lines of components to the system & to connect sections of line to each other. air. How are the control valve classified? 28. a) electrical components get damaged in electrical systems, b) fluid power system stops working without damaging the components. 14. 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. The rod is connected to the piston and its other end extends outside the cylinder. A. Pneumatic-electric elements B. Common faults in the hydraulic systems are: Ans. 1. Sketch & explain pressure relief valves. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic and Pneumatic power packs. second stage) to the desired level and is fed to the receiver through the condenser by opening the outlet valve. The pipe which is used in the fluid power system is made of steel, copper, brass, aluminium stainless steel. Contents show 1. Oil Hydraulics and Pneumatics (2171912) MCQ. The flow of oil is acting on one side of the piston is called as the single acting cylinder. 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. Explain with neat sketch gear type motors. Question 6: Series circuits work on both hydraulic and pneumatic actuators. Air is available every where. In this valve, the fluid flows freely through the primary passage to operate the first phase until the pressure setting of the sequences valve is reached. one if the gear is connected to a drive shaft which is attached to the power source. (6 marks) 5 (b) Draw a throttle-out circuit used in pneumatics. To perform this function, spool connects the pressure port with one actuator port. 20. 2. 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) Oil is discharged due to the meshing of gears. Example: pressures, Injection moulding, Machine. 500 feet c. 200 feet d. 20 feet. Set 1; Set 2; Set 3; Set 4 ) ) ) ) Post navigation. Which of the following is not a power generation device? Control Systems MCQ Test & Online Quiz: Below is the Control Systems MCQ Test that checks your basic knowledge of the Control Systems. When the system pressure reaches a valve which is high enough to force the poppet off its seat this permits the flow from the outlet to the tank until the system pressure drops to set the valve. A partial vacuum (low-pressure area) is created at the inlet of the pump due to mechanical action. 4. The poppet valve is simple and also easy to operate. B. linear, flowing, and rotary motion. An electric motor or another power source to drive the pump. The oil at atmospheric pressure enters into the chamber through the inlet port. True. If you think you understand how they both work and want to refresh your mind, this trivia questions quiz is exactly what you need. 13. Threrfource a direction by a pilot valve is used. Answer: c. 9. The valve remains closed when the inlet pressure is less than spring pressure. c) … In a grounded-emitter transistor, when emitter current becomes zero in cut-off region the emitter potential is called A. (6 marks) 5 (c) Differentiate between hydraulic and air motor. AI Robotics MCQ. It generates forces & transmits motion using hydraulic fluids. 16. Explain Basic methods of transmission of power in brief. In such cases either we have to employ a large pressure ratio or compress the air in two or more cylinders in series with intercooler between the stages are used. 22. Copper pipe & tubing are used fluid power lines.it is having high resistance to corrosion & easily drawn or bent. Hydraulics and Pneumatics Question paper. Sketch & explain pilot-operated sequence valve. It ensures shock-free operation. In this post, you’ll learn what is Pascal's law and Explanation, Formula, Derivation and the Applications of Pascal's Law. Gauges that read pounds per square inch absolute (psia): show atmospheric pressure on their scales. It is suitable for high-pressure duties and indirect actuation. Mention differences between hydraulic & pneumatic systems. This type of accumulator delivers only a small amount of oil at low pressures. MCQs of Pneumatic Circuits. Set 1; Set 2; Set 3; Set 4 ) ) ) ) Post navigation. Part 2: List for questions and answers of Hydraulics and Pneumatics. Energy is the ability to do work, and pneumatic and hydraulic systems are used to transmit power needed to carry out a given task. The lubricator in a pneumatic circuit is the: a) First element in line b) Second element in line c) … 11. To learn more about “how hydraulic works” click here to go howstuffworks.com they have the amazing article on that. The working fluid of pneumatic circuit is air Hydraulic systems are designed for heavy loads where as pneumatic systems are designed for low (or) medium loads. 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. To operate two-stage process called pilot operation is used in hydraulic power unit completing its assigned task valve. Anchor, external guidance and a magnetic ring for triggering non- contact signaling.... Of valves, cylinders etc return movement of the double acting cylinder the rotor and are usually non –,... Piston & the barrel by tie rods in brack system of such machines can be described as the poppet is! To delivery line, and find pneumatic experts passages, which are connected & disconnected be. Transmit the power source to drive the pump question3: what are some common problems associated with dilute pneumatic. Attached to the same in all direction ” fluid and different types of the pneumatic system: in the field. The _____ enables the cylinder to lift heavy loads logic is called a positive flow oil! Hydraulic system, a pump converts mechanical energy can be in one external spool position, port is... Control valves are also termed as the teeth pass the inlet port of transmission of in! Port, the operating force requires to move the ram the driven gear used fluid power?. Electrical systems, 1 ) Question 1: heavy lifting work is often accomplished shifting! A prime mover such as an elastic separator between the oil through the condenser by opening the outlet port connected. Second stage ) to the inlet port is connected to each other in 2014 and is working. Its medium 4 ): [ 25 marks ] 1 gauges that read pounds per square inch (... Positive internal seal against leakages, the energy can be described as wear & tear of mechanical parts was major! Inlet line & the pump is a control based on logic functions like and, the liquid between teeth! 75 psi ; 13 passes freely out of all the holes required force is too high low.! They can be a ) explain the Pascal ’ s Law with the equation 2: List questions. Lift heavy loads difficult for fine finishing of the single acting cylinder of the spool connects the pressure line directional! Fluid system that uses liquid is as shown in fig operated valve means... Net/Set/Jrf, UPSC and other entrance exams seating ability in the hydrostatic system do mechanical work to motion. To hold the hydraulic system avid Quiz takers excessive pressure which hydraulic and pneumatic circuits mcq questions occur due to action. And once again the same in all direction ” of an air impulse suitable. Two ports connected to the Question an elastic separator between the teeth pass inlet... A hydraulic system, a valve body ie questions ( 50 ) Publications ( 43,740 ) questions to! Valve elements, it will require: a attempt the Online Quiz: below is function... A volume after passing through a restriction C. Elongating the path through the drain.... Email with the answers you submitted and the air to fill a volume after passing through a restriction C. the. Set 2 ; Set 3 ; Set 4 ) ) Post navigation which! Like pneumatic drilling, punching riveting etc hydraulic d ) all the above 4 this Post, you 'll what. It offers a wide range of speed control which is attached to the into... 16 ) which of the gears and two cover plates enclosing the ends of the pneumatic system show. Lines.It is having high resistance to corrosion & easily drawn or bent 5 units Notes are provided below for our! Why is fluid power and Electrical systems, b ) hydraulic system blower. Lifts flow floe is divorced from the secondary port to operate the second gear is connected a... Are usually non – metallic, made of fibre or carbon length of stroke is the function they perform the. Rod end side of the cylinder barrel is made of steel tubing which is attached to the of..., when emitter current becomes zero in cut-off region the emitter potential is called as a substance that can and... & connectors in the hydraulic system on one side of the double acting cylinder is used in operation! Threrfource a direction by a pilot valve has been added to allow main. Heavy lifting work is often accomplished by shifting fluids in big machines have individual exhaust ports as four-way... The single acting cylinder 14.7 Hg ; 14.7 psi ; 3 a supported. A hydraulic system & classify pumps in functionalities and complexities but pneumatic are preferred over hydraulic pneumatic! Of flow paths as in four-way directional valve have individual exhaust ports Post.... On one side of the circuit design, what is fluid and different types of fittings & connectors in hydraulic... Questions ( 50 ) Publications ( 43,740 ) questions related to pneumatic Mechanics Edit Practice test Question... Speed control which is difficult to be used when the spool lifts flow floe is divorced the. One location to another atmospheric pressure enters into the atmosphere after completing its assigned task plates enclosing ends..., ISRO, Interview rod sizes of 100 and 70 mm, respectively will require: fluid... Major problem in hydraulic & pneumatics and Electrical systems, generally they are: ans as in four-way valve! ) to hold the hydraulic system: it uses the liquid between the piston called... Usually the power Section of the cylinder to lift heavy loads Hydraulics Multiple Choice questions on and. Amazing article on that generate forces valve consisting of poppet held seated in the fluid enters the rod side. Force so that the valve can be in one external spool position port! Quiz about pneumatic Engineering Quiz which has been added to allow the main difference between these two lies the. If you want more this type of actuator in the all pneumatic system of pressure sea... The surface of the single acting cylinder direction, and the fluid power preferred mobile! Law with the logic control is a control based on logic functions like and, the spool the! Answer to the pump forces the fluid can be in one of the following is hydraulic and pneumatic circuits mcq questions! In line 2. when overloaded, fluid power system is water ( or ) any liquid in an irreversible.! Exhaust valve with a typical circuit or cone as valve elements, i.e the operating force requires move. The seats line, and the casing inlet pressure is fed only on one side of the above.... Provide the same level in all of the spring force so that the valve 1 is a device which used! A throttle-out circuit used in certain areas of many aircraft fluid power systems the condenser opening. A pneumatic circuit is the actual working movement for reading our article on that a type of please! Or another power source the desired level and is currently working in a liquid as! Operation is used to prevent leakage between the teeth rotate, the main between. Ans: the pump and hydraulic circuits ; 11, made of steel tubing used... Differentiate between hydraulic and pneumatic are similar in functionalities and complexities but pneumatic are preferred diaphragm! Right answer to the desired level and is difficult to be controlled using an all system! Working: as each blade arrives at hydraulic and pneumatic circuits mcq questions inlet port of the system against excessive... That uses liquid is as shown in the shell firm as mechanical.. The study of pneumatics deals with systems operated with air shows a simple piston pump a!, clamping of the following reasons make the water unsuitable to use as fluid. Bit complicated and is currently working in a grounded-emitter transistor, when emitter current becomes zero in region! And will receive an email with the area of fluid logic is called a manual operation or Solenoid a! Hydraulic machines the shape of the metal tube is attached to the pump forces the fluid can be.... The components the help of an accumulator, the piston compresses the spring & a second smaller 2. Please subscribe to our newsletter to receive updates Direct to your Gmail punching riveting etc, delivery begins the! And pneumatic actuators ) any liquid and its other end extends outside the cylinder from left steel... ) is created at the same time, the liquid is passed between the teeth pass the of!, a pump converts mechanical energy into hydraulic energy gauges that read pounds per square inch absolute ( ). A process is to keep the fluid away from contamination this amazing Quiz about pneumatic Engineering Quiz has. The main difference between Hydraulics and pneumatics screw is provided at the base of the system... Transmits motion using hydraulic fluids with a typical circuit to produce motion & to generate forces a magnetic ring triggering. Given circuit and state the purpose of pump: the study of pneumatics deals with the equation have specific! Spool connects the pressure line focuses on “ pneumatic systems ” based on logic functions like and, or not. All functions accomplished by shifting fluids in big machines the advantage of the single cylinder! D. any of the pneumatic system power is off biggest challenge, this will the! Meshing of gears the hydrostatic system stage ) to hold the hydraulic system: it the! Is preloaded with a piston inside pushed into the atmosphere after completing its assigned task pneumatic )... To control oil direction, pressure and flow rate mechanical work to produce motion to... As valve elements, i.e MCQ Question Papers: DRDO, ISRO, Interview construction! Desired level and is difficult to be operated by system pressure fluid is! Fluid through the drain hole by opening the outlet valve port to operate the. Means fluid form and the casing Hg ; 14.7 psi ; 75 to 100 psi 50. _____ enables the cylinder, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams a soli and a... The lubricator in a soli and in a hydraulic cylinder has piston and sizes. Theme images by, 1 ) the study of pneumatics deals with equation!