MCQs of Power System Matrices (Interconnected Power System - 2170901)

Showing 21 to 20 out of 30 Questions

21.

Which of this is a property of $Y_{b u s}$ matrix

(a)	Diagonal elements are dominating
(b)	Off diagonal elements are symmetric
(c)	a sparse matrix
(d)	All of above

22.

In a power system, $Y_{b u s}$ is a sparse because

(a)	90% off-diagonal elements are zero
(b)	More mutual coupling between all elements
(c)	Less self admitance of all elements
(d)	None of above

23.

If there is no mutual coupling between transmission line and addition of 'y' admitance between 'i' and 'j' will effect

24.

If there is no mutual coupling between transmission line and addition of 'y' admitance between 'i' and ground will change

25.

If $Y_{11 o l d}$ is (1.018-j3.054) and admitance (2-j6) is added between bus 1 and 2 then new admitance of $Y_{11 n e w}$ is

26.

If $Y_{12 o l d}$ is zero and admitance (2.00-j6.00) is added between 1 and 2 then the new admitance $Y_{12 n e w}$ is

27.

Which of the following is called type-i modification in $Z_{b u s}$ algorithum?

(a)	Branch $Z_{b}$ is added between new bus and reference bus
(b)	Branch is added $Z_{b}$ between new bus and old bus
(c)	Branch $Z_{b}$ is added between old bus and reference bus
(d)	Branch $Z_{b}$ is added between two old buses

28.

Which of the following is called type-ii modification in $Z_{b u s}$ algorithum?

(a)	Branch $Z_{b}$ is added between new bus and reference bus
(b)	Branch $Z_{b}$ is added between new bus and old bus
(c)	Branch $Z_{b}$ is added between old bus and reference bus
(d)	Branch $Z_{b}$ is added between two old buses

29.

Which of the following is called type-iii modification in $Z_{b u s}$ algorithum?

(a)	Branch $Z_{b}$ is added between old bus and reference bus
(b)	Branch $Z_{b}$ is added between new bus and reference bus
(c)	Branch $Z_{b}$ is added between two old buses
(d)	None of above

30.

Which of the following is called type-iv modification in $Z_{b u s}$ algorithum?

(a)	Branch $Z_{b}$ is added between new bus and reference bus
(b)	Branch $Z_{b}$ is added between new bus and old bus
(c)	Branch $Z_{b}$ is added between old bus and reference bus
(d)	Branch $Z_{b}$ is added between two old buses

Showing 21 to 20 out of 30 Questions