# Power System Analysis MCQ Part 6

Power System Analysis MCQ Part 6

More PSA MCQ

Electrical Engineering MCQ

- 1 The number of nodes and the number of branches in a tree are related by
- 2 What is the value of (1+ a + a^2)
- 3 In star-delta or delta-star transformers the positive sequence line voltage on one side leads the corresponding line voltage on the other side by an angel of
- 4 What are some assumptions made for the equal area criterion
- 5 The dimension of bus incidence matrix is

The number of nodes and the number of branches in a tree are related by:

- b = n
- b = n+1
- b = n-1
- b = 2n

Correct answer: 3. b = n-1

## What is the value of (1+ a + a^2)

What is the value of (1+ a + a^{2}):

- 1
- 0
- Infinity

Correct answer: 2. 0

## In star-delta or delta-star transformers the positive sequence line voltage on one side leads the corresponding line voltage on the other side by an angel of

In star-delta or delta-star transformers the positive sequence line voltage on one side leads the corresponding line voltage on the other side by an angel of:

- 0°
- 30°
- 60°
- 90°

Correct answer: 2. 30°

## What are some assumptions made for the equal area criterion

What are some assumptions made for the equal area criterion:

- Mechanical input remains constant
- The transmission line and machine resistances are neglected
- Rotor speed of the machine is considered constant
- All of these

Correct answer: 4. All of these

## The dimension of bus incidence matrix is

The dimension of bus incidence matrix is:

- exn
- ex(n-1)
- ex(n+1)
- ex(n+2)

Correct answer: 2. ex(n-1)

More MCQ on Power System Analysis:

- Power System Analysis MCQ Part 1
- Power System Analysis MCQ Part 2
- Power System Analysis MCQ Part 3
- Power System Analysis MCQ Part 4
- Power System Analysis MCQ Part 5
- Power System Analysis MCQ Part 6
- Power System Analysis MCQ Part 7
- Power System Analysis MCQ Part 8
- Power System Analysis MCQ Part 9
- Power System Analysis MCQ Part 10