MGVCL Exam Paper (30-07-2021 Shift 3) Which of the following medium is used between CPU and RAM to speed up the processing power of a CPU? DRAM Flash memory Cache memory Virtual memory DRAM Flash memory Cache memory Virtual memory ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 3) Consider the following statements associated with Buchholz’s relays.Statement 1: Buchholz's relay is used for protection of a transformer against incipient faults.Statement 2: Buchholz's relay can be installed on oil cooled transformers. Statement 1 is FALSE and Statement 2 is TRUE Both Statement 1 and Statement 2 are FALSE Statement 1 is TRUE and Statement 2 is FALSE Both Statement 1 and Statement 2 are TRUE Statement 1 is FALSE and Statement 2 is TRUE Both Statement 1 and Statement 2 are FALSE Statement 1 is TRUE and Statement 2 is FALSE Both Statement 1 and Statement 2 are TRUE ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Buchholz relay is used for protecting transformer against incipient or internal faults.Buchholz relay is a gas-actuated relay installed in oil immersed transformers for protection against all kinds of faults.
MGVCL Exam Paper (30-07-2021 Shift 3) What is the value of capacitance of a capacitor which has a voltage of 4 V and has 16 C of charge? 2 F 16 F 4 F 8 F 2 F 16 F 4 F 8 F ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equation is given by:C = Q/V= 16/4= 4 F
MGVCL Exam Paper (30-07-2021 Shift 3) A conductor having surface density is embedded in a dielectric medium of permittivity. The electric field in the medium is E. If it is known that the pressure p on the conductor surface is equal to the electric energy density in the medium, then p (in SI unit)is given by σ²/(2πε) σ²/(2ε) σ/(4πε) σ²/(4π) σ²/(2πε) σ²/(2ε) σ/(4πε) σ²/(4π) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP As the point is near to the conductor will act as infinite sheetElectric field (E) is given by:E = σ²/(2ϵ)
MGVCL Exam Paper (30-07-2021 Shift 3) Choose the best option from the given alternatives which can be substituted for the given word/sentence.Code of diplomatic etiquette and precedence Sheath Protocol Wardrobe Secular Sheath Protocol Wardrobe Secular ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 3) Consider a solar PV plant with the following specific conditions:Analysis period: 1 yearMeasured average solar irradiation intensity in 1 year: 150 kWh/m²Generator area of the PV plant: 10 m² Efficiency factor of the PV modules: 15%Electrical energy actually exported by plant to grid: 135 kWhCalculate the performance ratio. 80% 50% 60% 75% 80% 50% 60% 75% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Where,A - total solar panel area in meter square.r - efficiency of solar panelh - solar installation per meter square area.Solar panel performance ratio = Actual energy (kWh)/(A*r*h)= (135/(0.15*10*150))= 0.60= 60 % (in percentage)
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