Calculate the capacitance per meter of a 50 Ω load cable that has an inductance of 50 nH/m.

MGVCL Exam Paper (30-07-2021 Shift 1)
Calculate the capacitance per meter of a 50 Ω load cable that has an inductance of 50 nH/m.

20 pF

30 pF

10 pF

40 pF

20 pF

30 pF

10 pF

40 pF

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MGVCL Exam Paper (30-07-2021 Shift 1)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series aiding.

932 mH

1270 mH

730 mH

1135 mH

932 mH

1270 mH

730 mH

1135 mH

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MGVCL Exam Paper (30-07-2021 Shift 1)
1.મંગલ + આચરણ - મંગલાચરણ
2. હરિ+ઇન્દ્ર - હરીન્દ્ર
3.નર+ઈશ - નરેશ
4. પ્રતિ+અક્ષ - પ્રતિક્ષ
ઉપરોક્ત વર્ણવેલમાંથી કઈ સંધિ સાચી છે.

1,4

1,3

2,1

2,3,

1,4

1,3

2,1

2,3,

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MGVCL Exam Paper (30-07-2021 Shift 1)
In a 3-phase, 4-wire, 400/230 V system, a lamp (L1) of 100 W is connected to one phase and neutral and a lamp (L2) of 150 W is connected to the second pahse and neutral. If the neutral wire is disconnected accidently, what will be the voltage across a 100 W lamp (L1)?

160 V

120V

180V

240V

160 V

120V

180V

240V

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MGVCL Exam Paper (30-07-2021 Shift 1)
Stability of power system can be improved by
1. Reducing voltage of transmission
2. Using parallel transmission lines
3. Using series compensators
Which of the above statements are correct?

1 and 2 only

2 and 3 only

All 1, 2 and 3

1 and 3 only

1 and 2 only

2 and 3 only

All 1, 2 and 3

1 and 3 only

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MGVCL Exam Paper (30-07-2021 Shift 1)
The normal percentage bias setting of differential relay used for transformer protection will be

between 50% and 75%

between 10% and 50%

above 75%

below 10%

between 50% and 75%

between 10% and 50%

above 75%

below 10%

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

MGVCL Exam Paper (30-07-2021 Shift 1) Calculate the capacitance per meter of a 50 Ω load cable that has an inductance of 50 nH/m.

MGVCL Exam Paper (30-07-2021 Shift 1) A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series aiding.

MGVCL Exam Paper (30-07-2021 Shift 1) Stability of power system can be improved by1. Reducing voltage of transmission2. Using parallel transmission lines3. Using series compensatorsWhich of the above statements are correct?

MGVCL Exam Paper (30-07-2021 Shift 1) The normal percentage bias setting of differential relay used for transformer protection will be

MGVCL Exam Paper (30-07-2021 Shift 1)
Calculate the capacitance per meter of a 50 Ω load cable that has an inductance of 50 nH/m.

MGVCL Exam Paper (30-07-2021 Shift 1)
A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series aiding.

MGVCL Exam Paper (30-07-2021 Shift 1)
Stability of power system can be improved by
1. Reducing voltage of transmission
2. Using parallel transmission lines
3. Using series compensators
Which of the above statements are correct?

MGVCL Exam Paper (30-07-2021 Shift 1)
The normal percentage bias setting of differential relay used for transformer protection will be