# For a single phase overhead line haying solid copper conductors of diameter 1 cm spaced 60 cm between centers, the inductande in mH/km is

1.  0.05 + 0.2 ln 60

2.  0.21n 60

3.  0.05x- 0.2ln (60/0.5)

4.   0.2 ln (60/0.5)

4

0.05x- 0.2ln (60/0.5)

Explanation :
No Explanation available for this question

# For a single phase overhead line haying solid copper conductors of diameter 1 cm spaced 60 cm between centers, the inductande in mH/km is

1.  0.05 + 0.2 ln 60

2.  0.21n 60

3.  0.05x- 0.2ln (60/0.5)

4.   0.2 ln (60/0.5)

4

0.05x- 0.2ln (60/0.5)

Explanation :
No Explanation available for this question

# In, the signal flow graph of figure y/x  equals

1.  3

2.  5/2

3.  2

4.  none of these

4

2

Explanation :
No Explanation available for this question

# A 100 km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150'MVA, the resistance the line is

1.  8.06 ohms per phase

2.  0.806 ohms per phase

3.  0.0806 ohms per phase

4.  80.6 ohms per phase

4

8.06 ohms per phase

Explanation :
No Explanation available for this question

# A 100 km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150'MVA, the resistance the line is

1.  8.06 ohms per phase

2.  0.806 ohms per phase

3.  0.0806 ohms per phase

4.  80.6 ohms per phase

4

8.06 ohms per phase

Explanation :
No Explanation available for this question

# A 3-phase, 11 kV, 50 Hz, 200 kW load has a, power factor of 0.8 lag. A delta connected 3-phase capacitor is used to improve the power factor to unity. The capacitance per-phase ;of 'the capacitor in: micro-farads is

1.  3.948

2.  1.316

3.  0.439

4.   11844

4

1.316

Explanation :
No Explanation available for this question

# In the signal flow graph of figure given below the gain C/R will be

1.  11/9

2.  22/15

3.  24/23

4.  44/23

4

44/23

Explanation :
No Explanation available for this question

# For equilateral spacing of conductors of an untrasposed 3-phase line we have

1.  balanced receiving end Voltage and no communication interference

2.  unbalanced receiving end Voltage and no communication interference

3.   balanced receiving. end voltage communication interference

4.  unbalanced receiving end voltage communication interference

4

balanced receiving. end voltage communication interference

Explanation :
No Explanation available for this question

# Which one of the following statements is not correct for the use of bundled conductors in transmission lines

2.  Reduction in corona loss

4.  Increase in interference with communication lines

4

Increase in interference with communication lines

Explanation :
No Explanation available for this question

# An electrical system and its signal-flow graph representation are shown in Fiures I and II respectively. The values of G2 and H, respectively, are

1.  Z3(s)/Z1(s)+Z2(s)+Z3(s),-Z3(s)/Z1(s)+Z3(s)

2.  -Z3(s)/Z2(s)-Z3(s)+Z4(s),-Z3(s)/Z1(s)+Z3(s)

3.  Z3(s)/Z2(s)+Z3(s)+Z4(s), Z3(s)/Z1(s)+Z3(s)

4.  -Z3(s)/Z2(s)-Z3(s)+Z4(s), Z3(s)/Z1(s)+Z3(s)

4