hydraulics objective questions and answers pdf

(b) gravity, pressure and turbulent (d) greater than 4 (b) Viscosity is due primarily to interaction between fluid molecules (a) water surface (b) turbulent flow (b) increase in viscosity of liquid c) works d) … (b) 2100 This is due to property of liquid known as A fluid in equilibrium can’t sustain (e) pitot tube. Ans: d, 106. (d) viscosity Ans: d, 33. (a) only when the fluid is frictionless Fluid is a substance which offers no resistance to change of In order that flow takes place between two points in a pipeline, the differential pressure between thes^ points must be more than (a) any weight, floating or immersed in a liquid, is acted upon by a buoyant force (e) could be any value. (e) all of the above. (a) 1000 kg Ans: b, 131. When the flow parameters at any given instant remain same at every point, then flow is said to be very good sir. (b) 3 meters of water column Ans: a, 222. Ans: d, 191. (b) 4000 kg/cm2 (d) 52.2 cm (b) equal to the volume of liquid displaced (d) Bernoulli’s theorem (c) rotameter The horizontal component of buoyant force is (d) center of buoyancy Hydraulic Machines Objective Questions With Answers Set. (c) 1000 kg (b) center of buoyancy and e.g. Ans: a, 229. A pressure of 25 m of head of water is equal to (d) newton-sec2 per meter (b) volumetric index (d) higher/lower depending on temperature (d) micro-manometer with water Ans: b, 54. (e) 250 m/sec. (c) above the center of buoyancy (d) involves zero transverse component of flow (d) force of diffusion (a) 2.4 m The internal elements of a valve are collectively referred to as a valve’s . (c) simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls (d) Viscosity of liquids is appreciably affected by change in pressure (e) none of the above. Ans: b, 111. (e) none of the above. (e) compressibility. so many questions are repeated several times sir…… ???? The pressure in the air space above an oil (sp. MCQ quiz on Hydraulic Machines multiple choice questions and answers on Hydraulic Machines MCQ questions on Hydraulic Machines objectives questions with answer test pdf for interview preparations, freshers jobs and competitive exams. (b) possess surface tension (d) 9.81 xlO6N/m3 (c) mass (d) viscosity (e) coefficient of compressibility. 1. (c) when there is no motion of one fluid layer relative to an adjacent layer (e) weight of body plus the weight of the fluid displaced hy the body. (b) has zero viscosity Units of surface tension are (d) metacentre (a) it has low vapour pressure (d) rotameter (d) adhesion Ans: b, 178. APPLICATIONS OF PNEUMATICS AND HYDRAULICS. (b) Standard atmospheric pressure is the mean local atmospheric pressure a* sea level (c) viscosity Compressors, Gas Turbines and Jet Engines PART 1 . The total energy of each particle at various places in the case of perfect incompres sible fluid flowing in continuous sream Fluid is a substance that (d) 20 mm (a) fluids are capable of flowing (c) steady flow (d) specific gravity Incorrect. General energy equation holds for Ans: d, 14. (d) unpredictable (c) at same point 2. weight of liquid vertically below the curved surface. The line of action of the buoyant force acts through the (b) unsteady flow For a floating body to be in equilibrium Ans: e, 171. (a) cannot be subjected to shear forces (b) e.g. (c) a righting couple should be formed (d) metal piece will sink to the bottom (d) pressure force and inertial force Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of (a) high initial and maintenance cost (b) lower discharge (c) Ans: a, 42. (e) unpredictable. (e) none of the above. (b) Equilibrium of a floating body Ans: a, 233. (c) center of gravity According to Bernoulli’s equation for steady ideal fluid flow (c) density/dynamic viscosity An ideal flow of any fluid must satisfy (e) none of above is correct. (a) mass of liquid displaced (e) none of the above. Select the correct statement Ans: a, 70. Ans: d, 56. (d) all the above are correct (a) negligible (d) the resultant force on a body due to the fluid surrounding it sir plz give me pdf file ….above imp questions, Sir all objective questions pdf is site par kase download hoga, Sir please send me the 255 fluid mechanics bits pdf, Sir plz me the pdf of all subject in civil engineering question and answer pdf…plz sir consider my request,I shall be highly remain grateful to u. sir please send me this file in pdf format it is very useful to me to prepare compititv e exam. Ans: d, 223. (b) pco2/?2/2 (b) at center of pressure (d) For stability of floating cylinders or spheres, the e.g. The difference of pressure between the inside and outside of a liquid drop is (c) center of buoyancy (b) buoyancy, pressure (c) 2 m/sec Solved examples with detailed answer description, explanation are given and it would be easy to understand. (b) full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. Ans: c, 205. Ans: e, 32. All students, freshers can download Civil Engineering Hydraulics quiz questions with answers as PDF files and eBooks. Parker Industrial Pneumatics Manual Answer Pneumatics And Hydraulics Exam Questions And Answers Page 3/5. LMRC Syllabus 2018 Lucknow Metro JE SCTO Executive Non. (c) 100 (c) inclined line with flow downward (d) all of the above (a) 900 minutes (d) lower/higher depending on weight of body (e) 51.7 cm. (a) adhesion (c) the magnitude and direction of the velocity do not change from point to point in the fluid If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be Question 3 of 20. Question. (a) at e.g. (e) unpredictable. (a) pco2/?2 (d) increases first upto certain limit and then decreases 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. Capillary action is due to the (e) 12.5 kN/m2. (e) static. (a) less (b) osmosis Ans: b, 211. (e) none of the above. (e) where pressure equivalent to hydraulic thrust will act. Ans: d, 197. (e) none of the above. Ans: e, 113. (a) upthrust (d) length (b) For stability of a submerged body, the center of gravity of body must lie directly below the center of buoyancy (c) Viscosity of liquids decreases with in-crease in temperature (c) whole of the metal piece will be immersed with its top surface just at mercury level Ans: e, 226. The ratio of absolute viscosity to mass density is known as is thanks a lot please send the PDF to my mail id. (c) V/T (b) work Ans: c, 230. Ans: a, 25. (e) h3/1. Ans: b Hydraulic Machines Interview Questions and Answers pdf :-31. (b) maximum (a) energy (b) length and diameter (e) aerofoil section. (a) Local atmospheric pressure depends upon elevation of locality only For measuring flow by a venturimeter, if should be installed in (b) it provides suitable meniscus for the inclined tube Ans: e, 194. (a) more (a) head of water (h) (b) adhesion Principle of similitude forms the basis of Ans: a, 190. (b) cohesion Explain with a neat sketch construction & working of the double acting cylinder. (c) more than 4000 a. water b. oil c. non-compressible fluid d. all of the above. These objective type Hydraulics & Pneumatics questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. (c) 1500 kg Ans: c, 57. (a) comparing two identical equipments Ans: c, 234. Centre of pressure compared to e.g. (c) 2000 kg (b) parabolic (e) none of the above. (e) none of the above. (a) pressure in gases (d) Newton’s formula (b) high pressure (e) none of the above. (e) there is no such criterion. (a) the direction and magnitude of the velocity at all points are identical Hydraulics Multiple Choice Questions and Answers - Set 26 _ Engineering, Competitive Exams and Jobs.pdf - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. (c) 10.2/m sec (b) kg sec/metre Ans: d, 76. (c) suspended matter The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is Cavitation will begin when (c) the magnitude and direction of the velocity do not change from point to point in the fluid Where can I get Civil Engineering Hydraulics Interview Questions and Answers (objective type, multiple choice)? Ans: d, 64. Ans: d, 152. (a) meta-center (c) hyperbolic (e) none of the above. (b) less Ans: d, 38. Which of the following is the unit of kinematic viscosity (e) none of the above. This definition is according to (a) Mach number During the opening of a valve in a pipe line, the flow is which will improve your skill. (b) steady state (a) rectilinear flow. Ans: d, 67. (e) all of the above. (e) none of the above. 100 TOP HYDRAULIC MACHINES Questions and Answers pdf. (d) decreases with fall in temperature Ans: e, 8. (a) above it (d) gravity, viscous and turbulent (c) energy (c) same (e) unpredictable. A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury? (e) none of die above. (c) ratio of inertial force to force due to surface tension (b) Boyle’s law The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to (a) the area is horizontal (d) 50 m/sec (e) none of the above. (b) decrease Ans: a, 240. Ratio of inertia force to surface Jension is known as (c) velocity (e) streamline flow. d) … (a) 1000 N/m3 (a) shear stress anctthejiate of angular distortion (d) increases exponentially with elevation Ans: d, 22. The helix angle for double helical gears may be made up to (A) 45° (B) 60° (C) 75° (D) 90° C... Labels. (a) the direction and magnitude of the velocity at all points are identical (d) all the above In the case of steady flow of a fluid, the acceleration of any fluid particle is (e) streamline flow. (c) newton-sec per meter (e) velocity and diameter. (d) center of buoyancy and metacentre (e) cohesion. (e) vertically downwards. (b) shear stress and viscosity (e) possess none of the above properties. (a) Venturimeter Ans: d, 21. (a) law of gravitation Fluid is a substance which offers no resistance to change of (a) is steady 2) Pressure of 1 bar is equal to. (d) adhesion (b) the area is vertical A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. (b) 1000 (a) The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface (d) center of buoyancy (d) Orsat (b) force of cohesion (d) 101.9 The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to (a) specific gravity of liquids (c) lower than the surface of liquid change from point to point in the fluid flow. (b) the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time (e) none of the above is correct. (d) inclined line with upward flow (a) h How long should it take to empty the prototype ? (b) Newton’s law of viscosity (c) steady flow (b) 13,500 kg (c) center of pressure (b) uniform flow (d) any one of above is possible (e) none of the above. (c) very low pressure (d) is independent of pressure and viscosity (e) none of the above. The volumetric change of the fluid caused by a resistance is known as (b) 6.4 m above the hydraulic gradient (c) Archimedes’ principle Ans: c, 219. (d) metacentre has nothing to do with position of e.g. (a) are viscous I get my most wanted eBook. I appreciate. (a) constant (b) center of pressure Ans: c, 74. (b) more than the weight of the body Ans: b, 45. (c) adhesion of the liquid molecules and the molecules on the surface of a solid (a) gas law The bulk modulus of elasticity of liquid is (c) varies in the same way as the density (e) none of the above. Parker Industrial Pneumatics Manual Answer … (a) the direction and magnitude of the velocity at all points are identical (e) MlL°t. The horizontal component of the force on a curved surface is equal to. An open vessel of water is accelerated up an inclined plane. (c) The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area (b) on the surface at which gravitational force acis Specific weight of sea water is more that of pure water because it contains (b) momentum (b) the center of gravity of the body and the center of buoyancy Ans: d, l62. (a) centroid of the displaced volume of fluid (e) hydrostaticforce = surface tension x gravity. In this page you can learn various important hydraulic machines objective questions,hydraulics objective questions and answers, mcq on hydraulic machines etc. (a) the resultant force acting on a floating body (c) U-tube with mercury (b) co-efficient of viscosity (d) difference of pressure between two points (d) turbulent flow (a) vertical upward force through e.g. Hydraulic Machines, Hydraulics and Fluid Mechanics, Mechanical Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, Mechanical Engineering, Multiple Choice Questions, Objective type questions, Mechanical Engineering short notes, rapid fire notes, best theory (a) one dimensional flow (d) ionisastion gauge (e) McLeod gauge. (d) 9810 Pa The units of viscosity are The model scale is 1: 225. (e) fluids have some degree of compressibility and offer little resistance to form. We have created an important links for only study purposes mainly those who are eagerly want to get Jobs in Government sectors. Ans: d, 55. (c) boundary layer theory (b) viscosity of the liquid (b) viscosity (c) takes place in straight lines Two pipe systems can be said to be equivalent, when the following quantites are same Free Online Calculators for Engineers Electrical. (d) all of the above (d) Center of buoyancy is located above the center of gravity of the displaced liquid v Free surface of a liquid tends to contract to the smallest possible area due to force of (e) none of the above. Ans: a, 82. Ans: d, 102. (a) 25 kN/m2 (c) non-steady uniform (b) viscosity index (c) remain same (c) shear stress, velocity and viscosity (e) none of the above. WELCOME TO YOU…! (c) force necessary to keep a body in equilibrium Ans: d, 177. (d) vortex Ans: c, 80. (e) it provides accurate readings. Rotameter is a device used to measure Ans: a, 186. (d) uniform For manometer, a better liquid combination is one having (a) the nature of the liquid and the solid Answer Explanation Related Ques: ANSWER: all of the above. Ans: a, 43. (b) 9.81 m/sec2 Solved examples with detailed answer description, explanation are given and it would be easy to understand. Hydraulic Components | Interview Question and Answers. gr. (b) 25 m/sec Correct Answer. (a) 400 kg/cm2 (c) at the summit Normal depth in open channel flow is the depth of flow corresponding to Ans: c, 164. Working principle of dead weight pressure gauge tester is based on (d) turbulent flow (e) absolute temperature, The resultant upward pressure of the fluid on an immersed body is called In an isothermal atmosphere, the pressure Ans: c, 216. units is equal to gr. (d) inviscous and compressible Ans: c, 97. (e) is directly proportional to flow. (b) minimum Cavitation is caused by Ans: d, 176. (b) compressibility of fluids (a) Pascal law Operation of McLeod gauge used for low pressure measurement is based on the principle of A bucket of water is hanging from a spring balance.

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