An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is

MGVCL Exam Paper (30-07-2021 Shift 1)
An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is

12.50 mJ

5.14 mJ

10.28 mJ

2.57 mJ

12.50 mJ

5.14 mJ

10.28 mJ

2.57 mJ

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MGVCL Exam Paper (30-07-2021 Shift 1)
આપેલ વિકલ્પો પૈકી દ્રવ્યવાચક સંજ્ઞાનું વાકય કયું છે?

આજકાલ ઠંડી હવા પ્રસરવા લાગી છે.

મહારાષ્ટ્રમાં અનેક શહેરો છે.

રણવીરને બોલીવુડનો બાહુબલી કહી શકાય.

ગુરુ એવો હોવો જોઈએ જેની વાણીમાં મીઠાસ હોય.

આજકાલ ઠંડી હવા પ્રસરવા લાગી છે.

મહારાષ્ટ્રમાં અનેક શહેરો છે.

રણવીરને બોલીવુડનો બાહુબલી કહી શકાય.

ગુરુ એવો હોવો જોઈએ જેની વાણીમાં મીઠાસ હોય.

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MGVCL Exam Paper (30-07-2021 Shift 1)
Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.

21.7 A

31.7 A

37.6 A

27.6 A

21.7 A

31.7 A

37.6 A

27.6 A

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MGVCL Exam Paper (30-07-2021 Shift 1)
Consider the following statements and choose the correct option:
Statement 1: The magnitude of earth fault current for a given fault position within a winding depends upon the method of neutral grounding.
Statement 2: Earth fault protection for an electric motor is provided by means of instantaneous overcurrent relay.

Both Statement 1 and Statement 2 are TRUE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

Both Statement 1 and Statement 2 are FALSE

Both Statement 1 and Statement 2 are TRUE

Statement 1 is TRUE and Statement 2 is FALSE

Statement 1 is FALSE and Statement 2 is TRUE

Both Statement 1 and Statement 2 are FALSE

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MGVCL Exam Paper (30-07-2021 Shift 1)
The necessary equation to be solved during the load flow analysis using Fast-Decoupled methid is given below:
where B' and B'' are formed using the imaginary part of the bus admittance matrix Ybus, n is the total number of buses in the system, m is the number of voltage regulated buses. The size of matrix B' is
∆P/|Vi|= -B' ∆δ
∆Q/|Vi| = -B'' ∆|Vi|

(n-m) x (n-m)

(n-m-1) x (n-m-1)

(n-1) x (n-1)

(m-1) x (m-1)

(n-m) x (n-m)

(n-m-1) x (n-m-1)

(n-1) x (n-1)

(m-1) x (m-1)

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MGVCL Exam Paper (30-07-2021 Shift 1)
Determine the ohmic value of the current limiting reactor per phase external to a 30 MVA, 11 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 5 times the full load current. The reactance of the synchronous generator is 0.05 pu.

0.605 Ω

0.405 Ω

0.305 Ω

0.805 Ω

0.605 Ω

0.405 Ω

0.305 Ω

0.805 Ω

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MGVCL Exam Paper (30-07-2021 Shift 1)

MGVCL Exam Paper (30-07-2021 Shift 1) An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is

MGVCL Exam Paper (30-07-2021 Shift 1) આપેલ વિકલ્પો પૈકી દ્રવ્યવાચક સંજ્ઞાનું વાકય કયું છે?

MGVCL Exam Paper (30-07-2021 Shift 1) Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.

MGVCL Exam Paper (30-07-2021 Shift 1)
An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is

MGVCL Exam Paper (30-07-2021 Shift 1)
આપેલ વિકલ્પો પૈકી દ્રવ્યવાચક સંજ્ઞાનું વાકય કયું છે?

MGVCL Exam Paper (30-07-2021 Shift 1)
Three equal star-connected inductors take 8 kW at 0.8 power factor when connected to a 460 V three - phase 3-wire supply. If one of the inductor in phase – Y is short circuited, then the line current in phase-Y is ___ Assume RYB sequence.