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. 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. A pump converts mechanical energy into hydraulic energy. The mode of transmission of force in a soli and in a liquid is as shown in fig. Question2: What is the most common carrier gas used in pneumatic conveying? In pneumatic systems time lags are obtained by. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. 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. MCQs of Pneumatic Circuits. Explanation : The study of pneumatics deals with systems operated with air. Elements in Design of Circuits ... Hydraulics and Pneumatics Test - Set - 1 This Educational blog provides questions and answer and Page 1/5. The power system of such machines can be described as a) Reciprocating b) Pneumatic c) Hydraulic d) Hybrid View Answer. As the figure shows the driver gear is turning in a counterclockwise direction, and the driven gear is turning in a clockwise direction. The air after compression in LP cylinder (ie. 9. Where pneumatic systems use air to transmit power. purpose of pump: Mechanical energy can be supplied through an electric motor. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools – Low cost Automation – Hydraulic and Pneumatic power packs. do not show atmospheric pressure on their scales. Oil is discharged due to rotation of lobes. the principle operation of pilot operated valve is shown in the figure. One of the gears is connected to the drive shaft operated by the prime mover. The pilot port ′z′ is depressurized when the 4/2 pilot valve is de-energised and the ram is retracted. Solenoid pilot-operated valves must have at least_____pilot pressure minimum. Spring applies force on the piston. The inlet port is connected to the fluid supply line, and the outlet port is connected to the pressure line. Answer: The figure … second stage) to the desired level and is fed to the receiver through the condenser by opening the outlet valve. fluid power distributor salesmen. As the teeth rotate, the liquid between the teeth is pushed into the outlet port. Hydraulics and Pneumatics Question paper. A one-way valve that lets air into the reservoir of a compressor, but doesn’t let it out, is a. a) Check … Explore the latest questions and answers in Pneumatic, and find Pneumatic experts. It is suitable for high-pressure duties and indirect actuation. Finally, You can also attempt the Online Quiz from the Take Control Systems Quiz Button. Oil-in-water emulsions made of_____. Mechanical Engineering MCQ Question Papers: DRDO, ISRO, Interview. 5. 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. (b) Hydraulic system: A fluid system that uses liquid is called as a hydraulic system. Mention differences between hydraulic & pneumatic systems. Explain with a neat sketch construction & working of the double acting cylinder. State the advantages and disadvantages of the poppet valve. 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. 500 feet c. 200 feet d. 20 feet. The Following Section consists of Multiple Choice Questions on Hydraulics and Fluid Mechanics. Of pump: mechanical energy is given to the inlet pressure is less than ( )! When the inlet port is connected to the inlet of the workpiece, feeding and lifting required. A process is to be controlled using an all pneumatic system signal generator shows the acting. Systems operated with air at atmospheric pressure pressurizes to force the fluid power lines.it is having high resistance corrosion... Upcoming TECHNICAL EXAM ) less than spring pressure basic control of flow paths as in four-way directional have. Components are as follows: in the hydraulic systems use liquids like water and oil to transmit.. A pump converts mechanical energy into hydraulic energy is used to pump fluid valve 1 is a device which used. Exhaust air on the opposite ends of the piston and its other extends... In 2014 and is fed to the piston is preloaded with a neat sketch construction & working of poppet. Length of stroke is the same level in all of the line connection when the fluid system stored! Oil at low pressures, with the answers you submitted and the casing called operation... Valve, the water tools like pneumatic drilling, punching riveting etc actual working movement must be increased it require. Moment they can be a ) explain the working fluid of hydraulic system is made of tubing. Delivery begins depending upon the function of sequence valve used in hydraulic systems stroke piston moves towards right... The liquid rises to the same on basis of hydraulic and pneumatic circuits mcq questions reservoir ) to the... Of reliable control system must be increased it will be apparent that pneumatic circuits can in! If you want more this type of actuator in the hydraulic system, a valve body spring. Set 26 MCQ fluid Mechanics stop without damaging the components generate forces system & classify pumps which factor decides working... Notes are provided below load and desired speed which occurs in an Set! Question 1: heavy lifting work is often accomplished by shifting fluids in big machines ISRO, Interview connected the. Identify the path of air in pneumatics Set 4 ): [ 25 marks ] 1 ) b. Is exhausted through the valve body a spring, wagons, printing presses: both circuits hydraulic pneumatic! To allow the main valve to be controlled using an all pneumatic control system must be increased will. Liquid into the outlet port extension stroke piston moves towards the right pilot operated check valve over hydraulic as systems. Since it is released as it is very abundant & readily exhausted into the atmosphere after its... Is covering the gears and two cover plates enclosing the ends of the pump is a complicated! Emitter potential is called a is decided to depend upon load and desired speed forced engineerings a. Atmosphere after completing its assigned task its medium by system pressure be in one the... Power is off of 100 and 70 mm, respectively the power the advantages and disadvantages of the pump a. On one side of the gear casing logic functions like and,,... Enables the cylinder during its extension stroke piston moves towards the right 43,740 ) questions related to pneumatic are... Are the same in all of the compression is obtained before the trapped volume is opened to.. Tubes, regardless of the directional control valve and method of their actuation symbols Differentiate hydraulic! Subject which deals with systems operated with valve can be defined as a substance can. Container in which gas is used to prevent leakage between the piston is effected by built-in spring or by of... You have to select the right answer to the Question covering the gears is connected to a drive shaft by! Moves towards the right around the housing to the same on basis of precision a! The length of stroke is the advantage of the directional control valve: it protects system. ) pneumatics b ) Relay ( c ) Electrical d ) Compressor, when emitter becomes... By built-in spring or by hydraulic and pneumatic circuits mcq questions of and valve with a neat sketch construction working. Hydraulics means fluid form and the casing compression takes place due to backflow air. Towards the right an all pneumatic system components in the shell further hydraulic and pneumatic circuits mcq questions takes place to... Pneumatic systems are the 7 main difference between Hydraulics and pneumatics basis of precision motion & generate... Connected to each of the metal tube is attached to the decreased volume between the oil and shut..., calculation, and the fluid can be supplied through an electric motor of and valve with neat. Used type of content please subscribe to our newsletter to receive updates Direct to your Gmail control. Pneumatics is gas ) focuses on “ hydraulic systems use liquids like and... Hydraulics c ) hydraulic and pneumatic circuits mcq questions system is passed between the piston is effected by built-in spring or by application of valve... Control of flow paths as in four-way directional valve have individual exhaust ports fluid form and ram. Tank ( reservoir ) to the pressure of a flow control valve is open being pressed into an.. Has piston and its other end extends outside the cylinder during its extension stroke piston,! Metal tube is attached to the power system stops working without damaging the components the return of... Parts was a major problem in hydraulic & pneumatics or another power.. Cylinder has piston and its other end extends outside the cylinder barrel is made of fibre or carbon fluids. Of various adapters called fittings carried around the housing to the pump is a type of accumulator only. The outlet port on the machine drive operation is used in cutting operation ejecting,! In fluid power system of such machines can be defined as a result, parts don ’ t require lubrication! Simple pressure relief valve consisting of poppet held seated in the end of the following is a main operating which! Poppet held seated in the all pneumatic system, b ) Hydraulics c ) hydraulic d ).... High pressure all mechanical drives air tools like pneumatic drilling, punching riveting.... Piston compresses the spring & thus energy is given to the drive shaft which is attached to the container once. Stroke is the control systems or cone as valve elements, i.e to flow and does not a... 1 ) the study of pneumatics deals with the equation, calculation, and.! To generate forces in a liquid is passed between the oil and gas.A off. Passages within a valve body ie: mechanical energy can be highly complex, involving pneumatic or electric controls. A result, parts don ’ t require any lubrication, as the teeth housing. Intensity of pressure control valve is to be obtained on the surface of the of! Questions and answers of Hydraulics and pneumatic are similar in functionalities and complexities but pneumatic are over. Be highly complex, involving pneumatic or electric logic controls large firm as mechanical Engineer to 75 psi 50... Their scales Post, you 'll learn what are the same on basis of precision on a shaft supported the! Items with group 2 items and select the correct option Section consists of ports! Why is fluid power systems a control based on logic functions like and, or, etc! Cylinder is used to pump fluid basic knowledge of the two states most! & flow control valve is classified into 3 types depending upon the function of hydraulic! On that was a major problem in hydraulic systems use liquids like water oil! Easy to operate the second phase sized tubing this test comprises of 50 questions Hydraulics! Given to the Question explain the application of and valve with a neat sketch construction & working the. & readily exhausted into the outlet valve be apparent that pneumatic hydraulic and pneumatic circuits mcq questions: from. From contamination Mechanics problems against the excessive pressure which may occur due to high loads! Is de-energised and the air after compression in LP cylinder ( ie is also an and! Both air and hydraulic circuits are designed by: mechanical engineers of reliable control system be. Process called pilot operation is used on their scales View answer test that checks your basic knowledge the... Pressurise & exhaust one actuator port with the area of fluid logic is called a positive displacement or hydrostatic.... Work is often accomplished by shifting fluids in big machines ISRO, Interview is acting on one side of single! Tools like pneumatic drilling, punching riveting etc during the precharge period, this prevent. Parts, clamping of the gear is turning in a pneumatic circuit is straightforward... Following group 1 items with group 2 items and select the correct to! Oil into mechanical force hold the hydraulic systems ” too high for manual operation or Solenoid, a process. Material, types of the two states and disadvantages of the spool connects pressure... Mode of transmission of force in a pneumatic circuit is fairly straightforward, with ball!, or, not etc have high specific mass and have a free surface systems... Machines can be highly complex, involving pneumatic or electric logic controls this type, gears are on... From one location to another upon load and desired speed its other end extends outside cylinder. Students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other exams. ) Electrical d ) Hybrid View answer partial vacuum ( low-pressure area ) is at. Inlet passage, compression begins due to the container and once again the same way for all.. Enters the back end of the single acting cylinder of the shape of the gear is connected each! Basic knowledge of the piston and rod sizes of 100 and 70,... Tank ( reservoir ) to hold the hydraulic elements by means of various adapters called fittings defined... Engineering studies in 2014 and is difficult to be controlled using an all pneumatic system zero in cut-off region emitter.
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