Total Strain Energy theory or HAIGH’S THEORY 5. API Gravity: The gravity (weight per unit of volume) of crude oil expressed in degrees according to an American Petroleum Institute recommended system. A cubic block of side $$'L'$$ and mass $$'M'$$ is dragged over an oil film across table by a string connects to a hanging block of mass $$'m'$$ as shown is fig. Opatija, Hrvatska, 9.-12.10.2019, Vrsta sudjelovanja NETWORK ANALYSIS 23. Directly proportional to the stressed oil volume b. Ans: d. 2. In terms of movable oil volume by dividing this equation by 1 S wc s or W f 1 b from ENPE 525 at University of Calgary 32. NETWORK ANALYSIS MCQ PART (II) JE/SSC/RRB/PSCProf.Prasant Tiwari 2. Home >> Category >> Electrical Engineering (MCQ) questions and answers >> High Voltage Engineering; Q. Stressed oil volume theory . b. The theory is applicable to mix- tures of molecules of different sizes and lays particular stress on equation of state contributions to the thermo- dynamic excess functions, which are of central impor- tance in determining the free volume of the … / - Opatija : HRO CIGRÉ, 2019, 1-8, Skup For this purpose, combined stress research is taken as an example. Transformer oil (also known as insulating oil) is a special type of oil which has excellent electrical insulating properties and is stable at high temperatures. In thin pressure vessels, hoop stresses are assumed to be uniform across thickness. Predavanje, Vrsta recenzije Multiple Choice Questions and Answers By Jhasketan Garud January 9, 2020 Multiple Choice Questions and Answers on Stress Management The questions and answers on stress management have been designed in such a way that you will learn the subject in the process of answering the questions. According to this theory the breakdown strength is inversely proportional to the stressed oil volume. MCQ Type Questions: - 25194362 MCQ Type Questions: 1. U: Proceedings of the 5th International Colloquium Transformer Research and Asset Management. What is the principle of stressed oil volume Theory in Breakdown liquids. It does not mean that classical views are static and The Newtonian oil film of thickness $$'h'$$ has dynamic viscosity $$'\mu '$$ and the flow condition is laminar. Gabrić, Petar ; Orešković, Ana ; Kuprešanin, Vjenceslav ; Mikulecky, Antun ; Podobnik, Vladimir, Vrsta, podvrsta i kategorija rada It is also applicable for clean liquids, gas/air and steam. Maximum Principal Stress theory also known as RANKINE’S THEORY 2. Pravila privatnosti | 9. Change in the Volume … keywords = {transformer winding, corner stress, stressed oil volume, insulation design}, Ustanove: e = V v /V s. Considering unit volume of the soil solids, that is, V s = 1, void ratio e = V v, initial volume of the soil is –. act as a coolant). Classical Theory of Management by Taylor: The term ‘classical’ means something traditionally accepted or long-established. Sažetak @article{article, Assuming constant loaded area, A, we have – ΔV/V 1 = (V 1 /V 2)/V 1. where V f is the final volume of the soil after a given stress increment Δσ’: . © Copyright 2016. The aim of this paper is to demonstrate how stressed oil volume (SOV) theory can be used in experimental research to obtain better reliability of transformer insulation design criteria. ANSWER: Inversely proportional to the stressed oil volume, ANSWER: Areas of maximum stress, areas of minimum stress, ANSWER: Higher boiling point and high viscosity. Institut Ruđer Bošković | a. keyword = {transformer winding, corner stress, stressed oil volume, insulation design}, 1. c. Statistical or stressed oil volume theory Suspended particle theory Impurities or particles floating in the liquid align The force that drags them into the Electric Field is given by 1 3 e s el 2 F r E 2 e s 2e l If er is large, 1 3 F r E 2 2. According to the Stressed Oil Volume theory, the breakdown strength is. For this purpose, combined stress research is taken as an example. volume element subjected to three equal normal stresses) can withstand very large stresses. 5th International Colloquium Transformer Research and Asset Management, Mjesto i datum 31. Proceedings of the 5th International Colloquium Transformer Research and Asset Management The particles form conducting chain which leads to breakdown Cavity and bubble breakdown theory All Rights Reserved. pages = {1-8}, V 1 = V a + V v = 1 + e 1. Znanstvena područja CLT can be extended to viscoelastic response by use of … Maximum Distortion Energy theory or VONMISES AND HENCKY’S THEORY 1. Sažetak. title = {Stressed Oil Volume Theory in Transformer Winding Corner Stress Analysis}, Which of the following laws is applicable for the behavior of a perfect gas (a) Boyle’s law (b) Charles’law (c) Gay-Lussac law Classical Theory Of Management By Taylor Answer 1. Fluid is a substance that (a) cannot be subjected to shear forces (b) always expands until it fills any container (c) has the same shear stress.at a point regardless of its motion (d) cannot remain at rest under action of any shear force (e) flows. In combined stress research winding edge geometry is investigated, where at the same time winding edge is exposed to axial lightning impulse … A Wedge Flow Meter is preferably applied in difficult-to-meter line fluids, like air entrained liquids, particular entrained liquids, high viscous liquids or slurry liquids, which are abrasive or fibrous.. High gravity crudes are generally considered more valuable. According to the Stressed Oil Volume theory, the breakdown strength is - Published on 21 Dec 15. a. The higher the API gravity, the higher the crude. Due to internal fluid pressure these are tensile in nature. Combining the above two equations, we have – Geertsma discussed stress and strain solutions and stated that elastic theory is applicable to borehole fracturing, but that sand influx requires accounting for plasticity effects. Elektrotehnika. publisher = {HRO CIGR\'{E}}, This paper shows how SOV theory can be used to analyse the influence of radial el. Now – ΔV/V 1 = Δe/(1 + e 1). Stressed oil volume theory is applicable when (a) small volume of liquid is involved (b) large volume of liquid is involved (c) large gap distance is involved (d) pure liquids are involved 10. publisherplace = {Opatija, Hrvatska} The safety factor for the maximum shear-stress theory is given by max S sy N Theories of Failure Distortion-Energy Theory OR The von Mises - Hencky Theory It has been observed that a solid under hydro-static, external pressure (e.g. Uvjeti korištenja | Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni, Izvornik KONČAR - Institut za elektrotehniku d.d. ADVERTISEMENTS: Compilation of answers we got on the classical theory of management. year = {2019}, Fluid Mechanics MCQ Objective Question and Answers Part 1 Fluid Mechanics Multiple choice Objective Question useful for technical Aptitude test. Networks Analysis and Synthesis MCQ Questions & Answers VIVA Questions, Electrical Engineering 1. CROSBI koristi kolačiće (cookies) kako bi poboljšao funkcionalnost stranice. Biaxial state of stress is assumed to be applicable (a) Circumferential stress or Hoop stress, σ H There are normal stresses which act in the direction of circumference. Gabrić, P., Orešković, A., Kuprešanin, V., Mikulecky, A. (11.23), we have – 3. Conduction and breakdown in liquid dielectrics - Electrical Engineering (MCQ) questions and answers. & Podobnik, V. (2019) Stressed Oil Volume Theory in Transformer Winding Corner Stress Analysis. Stressed Oil Volume Theory in Transformer Winding Corner Stress Analysis, Autori Hydraulic actuators use liquid pressure rather than instrument air pressure to apply force on the diaphragm to move the valve actuator and then to position valve stem.. Nearly all hydraulic actuator designs use a piston rather than a diaphragm to convert fluid pressure into mechanical force.. MCQ (Single Correct Answer) GATE ME 2008. Combining the radial and axial stress into a single design criterion should lead to a more reliable insulation design. According to stressed oil volume theory, the breakdown strength _____ the stressed oil volume: Is inversely proportional to; Is directly proportional to; Is independent of; None of these Correct answer: 1. Free PDF Books - Engineering eBooks Free Download online Pdf Study Material for All MECHANICAL, ELECTRONICS, ELECTRICAL, CIVIL, AUTOMOBILE, CHEMICAL, COMPUTERS, MECHATRONIC, TELECOMMUNICATION with Most Polular Books Free. A specimen of oil having an initial volume of 580 cm^3 is subjected to a pressure increase of 4.0 MPa, and the volume is found to decrease by 0.40 cm^3. The aim of this paper is to demonstrate how stressed oil volume (SOV) theory can be used in experimental research to obtain better reliability of transformer insulation design criteria. Directly proportional to the stressed oil volume. Statistika, Gabrić, Petar; Orešković, Ana; Kuprešanin, Vjenceslav; Mikulecky, Antun; Podobnik, Vladimir. Also learn about: 1. SME 1313 Fluid Mechanics I Introduction Property – any characteristic of a system E.g pressure P, temperature T, volume V, and mass m Intensive properties Properties that are independent of the mass of a system e.g temperature, pressure, density Extensive properties Properties whose values depend on size-or-extent-of the system e.g mass, total volume, total momentum justable parameters. In combined stress research winding edge geometry is investigated, where at the same time winding edge is exposed to axial lightning impulse stress due to potential difference between discs/coils and radial LI stress due to potential difference between windings. }, Za ispravke kontaktirajte CROSBI podršku putem. Transformer designers usually consider this axial and radial stress as two independent manifestations, evaluating each with its own design criteria. The dielectric strength of air is approx: 10 kV/in 20 kV/in 200 kV/in 5000 kV/in Correct answer: b. A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks. gr. Maximum Principal Strain theory also known as St. VENANT’S THEORY 4. What are the characteristics of a good solid dielectric? (11.22) in Eq. In non-uniform fields, the stressed oil volume is taken as the volume which is contained between the maximum stress contour (Emax) and (0.9 Emax) contour. General Knowledge MCQ questions and answers with solution for competitive exam, interview and entrance test. Ans: d. 2. Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja, CROSBI ID: 1027541 transformer winding, corner stress, stressed oil volume, insulation design. Classical Management Theory Advantages And Disadvantages 2. Which of the following variables controls the physical properties of a perfect gas (a) pressure (b) temperature (c) volume (d) all of the above (e) atomic mass. Maximum Shear Stress theory or GUEST AND TRESCA’S THEORY 3. Network Theory Part 2 questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - … If the atmospheric pressure on the surface of an oil tank (sp. Practice and Learn General Knowledge MCQ Questions and Answers for Government exams, Bank exams and other various exams In a soil if the existing effective stress is the maximum that it has ever experienced in its history, then the soil will be called (a) normally consolidated (b) pre-consolidated (c) under-consolidated (d) none of these 6. The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film) (A) μπ²NR/60t (B) μπ²NR²/60t (C) μπ²NR³/60t (D) μπ²NR⁴/60t The stress at this point is called (a) effective stress (b) consolidation stress (c) under-consolidation stress (d) pre-consolidation stress 5. Substituting the value of (∂v z /∂z) from Eq. According to the Stressed Oil Volume theory, the breakdown strength is Volume of water leaving the soil element per unit time is – Volume of pore water squeezed (expelled) out of the element per unit time is – where V 1 is the initial volume that is equal to dx × dy × dz. This study was basically two-dimensional, not taking into consideration the vertical stress. Explanation: No explanation is available for this question! FLUID MECHANICS Multiple Choice Questions :-1. Međunarodna recenzija, Ključne riječi Za ispravke kontaktirajte CROSBI podršku putem web obrasca, Naslov Electrical Engineering (MCQ) questions and answers, Electrical and Electronic Measurements & Instrumentation, Maintenance & Testing of Electrical Equipments, Electrical Installation, Estimation and Costing, Power System - Analysis, Stability & Computer Techniques, Power System - Transmission and Distribution. © 2021. Transformer oil is used in oil-filled electrical power transformers to insulate , stop arcing and corona discharge , and to dissipate the heat of the transformer (i.e. 20 kV/in field on axial oil gap LI withstand stress, which is an essential step in combined stress design criteria development. Thermodynamics Multiple choice Questions :-1. 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