# Medium transmission lines - MCQs with Answers

## Medium transmission lines - MCQs with Answers

Q1. A line of what length can be classified as a medium transmission line?

a. 90 – 100 km
b. 50 – 150 km
c. 150 – 200 km
d. Above 200 km

ANSWER: b. 50 – 150 km

Q2. Which among the following methods are used for the calculation of solution of a medium transmission line?

a. End condenser method
b. Only T method
c. Only p method.
d. All of these.

ANSWER: d. All of these.

Q3. What are the A and D parameters in case of medium transmission line (nominal T method)?

a. A = D = 1 + (YZ / 2)
b. A = D = 1 + (YZ / 2) * Z
c. A = D = (YZ / 2)
d. A = D = (YZ / 2) * Y

ANSWER: a. A = D = 1 + (YZ / 2)

Q4. In the nominal p method which among these are divided into two halves?

a. Series impedance
b. Shunt capacitance
c. Both (A) and (B)
d. None of these.

ANSWER: b. Shunt capacitance

Q5. What is the value of B parameter in case of nominal p method?

a. Y
b. Z
c. Y * (1 + YZ / 4)
d. Z * (1 + YZ / 4)

Q6. What is the value of the C parameter by using a nominal T method for a 3 phase balanced load of 30 MW which is supplied by a 132 kV, 50 Hz and 0.85 pf lagging. The series impedance of a single conductor is (20 + j52) Ω and the total phase to neutral admittance is 315 * 10-6 siemen.

a. 0.000315 ∠ 90
b. 0.000251 ∠ 90
c. 0.004125 ∠ 90
d. 0.000289 ∠ 90