MGVCL Exam Paper (30-07-2021 Shift 3)
A single phase full converter bridge, connected to 230 V, 50 Hz source is feeding a load R =10 Ω in series with a large inductance that makes the load current ripple free. For a firing angle of 450, calculate the rectification efficiency.

63.66%
50.55%
76.66%
28.33%

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MGVCL Exam Paper (30-07-2021 Shift 3)
નીચે પૈકી કેટલી કહેવતો વિરુદ્ધાથીઁ છે?.
1. પાંચ બોલે તે પરમેશ્વર - ગામને મોઢે ગળણું ન બંધાય.
2. ચોરની ચાર અને જોનારની બે - વિશ્વાસે વહાણ ચાલે.
3. ખાલી ચણો વાગે ઘણો - અધુરો ઘડો છલકાય.
4. હાથના કર્યા હૈયે વાગ્યા - દીવો લઈને કૂવામાં પડવું

કુલ 1
એક પણ નહિ
બધી કહેવતો સમાનર્થી છે
કુલ 3

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MGVCL Exam Paper (30-07-2021 Shift 3)
What are the main challenges that the electric grid faces?

Global rise in temperature
Reliability and Power Quality is Declining
All of these
Increase in Energy Demand

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MGVCL Exam Paper (30-07-2021 Shift 3)
What is the full form of the acronym 'SWIFT', in financial institution?

Social World interconnection in Financial Tech process
Society website in Financial Terms
Social Wide in Financial Transaction
Society for Worldwide Interbank Financial Telecommunication

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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/(2ε)
σ/(4πε)
σ²/(2πε)
σ²/(4π)

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