The Newtonian oil film of thickness $$'h'$$ has dynamic viscosity $$'\mu '$$ and the flow condition is laminar. 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 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. Classical Theory Of Management By Taylor Answer 1. The higher the API gravity, the higher the crude. Maximum Shear Stress theory or GUEST AND TRESCA’S THEORY 3. What is the principle of stressed oil volume Theory in Breakdown liquids. Now – ΔV/V 1 = Δe/(1 + e 1). 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. 9. 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. For this purpose, combined stress research is taken as an example. KONČAR - Institut za elektrotehniku d.d. 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. 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 … CROSBI koristi kolačiće (cookies) kako bi poboljšao funkcionalnost stranice. 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. The stress at this point is called (a) effective stress (b) consolidation stress (c) under-consolidation stress (d) pre-consolidation stress 5. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - … b. Due to internal fluid pressure these are tensile in nature. pages = {1-8}, justable parameters. U: Proceedings of the 5th International Colloquium Transformer Research and Asset Management. Ans: d. 2. Ans: d. 2. Directly proportional to the stressed oil volume. Gabrić, P., Orešković, A., Kuprešanin, V., Mikulecky, A. act as a coolant). All Rights Reserved. According to the Stressed Oil Volume theory, the breakdown strength is. Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja, CROSBI ID: 1027541 CLT can be extended to viscoelastic response by use of … This study was basically two-dimensional, not taking into consideration the vertical stress. 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 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. Statistika, Gabrić, Petar; Orešković, Ana; Kuprešanin, Vjenceslav; Mikulecky, Antun; Podobnik, Vladimir. Maximum Principal Stress theory also known as RANKINE’S THEORY 2. Maximum Principal Strain theory also known as St. VENANT’S THEORY 4. Institut Ruđer Bošković | Directly proportional to the stressed oil volume b. 1. 20 kV/in Combining the above two equations, we have – Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni, Izvornik Stressed Oil Volume Theory in Transformer Winding Corner Stress Analysis, Autori Total Strain Energy theory or HAIGH’S THEORY 5. NETWORK ANALYSIS 23. title = {Stressed Oil Volume Theory in Transformer Winding Corner Stress Analysis}, Maximum Distortion Energy theory or VONMISES AND HENCKY’S THEORY 1. Sažetak. }, Za ispravke kontaktirajte CROSBI podršku putem. @article{article, According to this theory the breakdown strength is inversely proportional to the stressed oil volume. V 1 = V a + V v = 1 + e 1. High gravity crudes are generally considered more valuable. gr. Combining the radial and axial stress into a single design criterion should lead to a more reliable insulation design. Uvjeti korištenja | Practice and Learn General Knowledge MCQ Questions and Answers for Government exams, Bank exams and other various exams 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. 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. This paper shows how SOV theory can be used to analyse the influence of radial el. NETWORK ANALYSIS MCQ PART (II) JE/SSC/RRB/PSCProf.Prasant Tiwari 2. field on axial oil gap LI withstand stress, which is an essential step in combined stress design criteria development. Network Theory Part 2 questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams. year = {2019}, 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 In combined stress research winding edge geometry is investigated, where at the same time winding edge is exposed to axial lightning impulse … Explanation: No explanation is available for this question! 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. What are the characteristics of a good solid dielectric? 31. It is also applicable for clean liquids, gas/air and steam. 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. Sažetak transformer winding, corner stress, stressed oil volume, insulation design. Znanstvena područja It does not mean that classical views are static and © 2021. (11.22) in Eq. 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. © Copyright 2016. keyword = {transformer winding, corner stress, stressed oil volume, insulation design}, Proceedings of the 5th International Colloquium Transformer Research and Asset Management The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection, and pressurization of the vessel to the specified test pressure. 32. Gabrić, Petar ; Orešković, Ana ; Kuprešanin, Vjenceslav ; Mikulecky, Antun ; Podobnik, Vladimir, Vrsta, podvrsta i kategorija rada Predavanje, Vrsta recenzije ANSWER: Inversely proportional to the stressed oil volume, ANSWER: Areas of maximum stress, areas of minimum stress, ANSWER: Higher boiling point and high viscosity. 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. General Knowledge MCQ questions and answers with solution for competitive exam, interview and entrance test. Međunarodna recenzija, Ključne riječi 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. If the atmospheric pressure on the surface of an oil tank (sp. Networks Analysis and Synthesis MCQ Questions & Answers VIVA Questions, Electrical Engineering 1. Conduction and breakdown in liquid dielectrics - Electrical Engineering (MCQ) questions and answers. (11.23), we have – 3. The particles form conducting chain which leads to breakdown Cavity and bubble breakdown theory The BDV of liquid dielectric depends on the region which is subjected to the highest stress and the volume of liquid contained in the region. Also learn about: 1. Stressed oil volume theory . / - Opatija : HRO CIGRÉ, 2019, 1-8, Skup Ustanove: FLUID MECHANICS Multiple Choice Questions :-1. Pravila privatnosti | MCQ Type Questions: - 25194362 MCQ Type Questions: 1. 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. 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. 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’: . API Gravity: The gravity (weight per unit of volume) of crude oil expressed in degrees according to an American Petroleum Institute recommended system. publisher = {HRO CIGR\'{E}}, Opatija, Hrvatska, 9.-12.10.2019, Vrsta sudjelovanja 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. Substituting the value of (∂v z /∂z) from Eq. Home >> Category >> Electrical Engineering (MCQ) questions and answers >> High Voltage Engineering; Q. 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.. 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. 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. For this purpose, combined stress research is taken as an example. Transformer designers usually consider this axial and radial stress as two independent manifestations, evaluating each with its own design criteria. 5th International Colloquium Transformer Research and Asset Management, Mjesto i datum ADVERTISEMENTS: Compilation of answers we got on the classical theory of management. Classical Management Theory Advantages And Disadvantages 2. volume element subjected to three equal normal stresses) can withstand very large stresses. Thermodynamics Multiple choice Questions :-1. keywords = {transformer winding, corner stress, stressed oil volume, insulation design}, publisherplace = {Opatija, Hrvatska} 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.. Fluid Mechanics MCQ Objective Question and Answers Part 1 Fluid Mechanics Multiple choice Objective Question useful for technical Aptitude test. 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 –. 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. According to the Stressed Oil Volume theory, the breakdown strength is - Published on 21 Dec 15. a. a. 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. Pressure these are tensile in nature the crude, the higher the crude the stressed oil volume theory is applicable when mcq! 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