Power System Analysis MCQ Part 2

Main: Power System Analysis MCQ

## Which of the following is an objective of short circuit calculations

Which of the following is an objective of short circuit calculations:

- Evaluations of short-circuit withstand ratings of bus bars
- Calculation of fault voltage dips
- Protective relaying short-circuit requirement evaluation
- All of these

Correct answer: 4. All of these

## The higher the X/R ratio PSA MCQ

The higher the X/R ratio, the _________ is the time for which the asymmetry in the total current will be sustained:

- Shorter
- Longer

Correct answer: 2. Longer

## PSA Part 2 MCQ#3

Statement: In unbalanced three phase system it is quite sufficient to determine the currents and voltages in one phase, and then displace two other two phases:

- Statement is correct
- Statement is false
- Statement may be correct sometimes and false other times

Correct answer: 2. Statement is false

## Which of following is the correct statement about effect grounded systems

Which of following is the correct statement about effect grounded systems:

- X0/X1 < 1.98, and R0/X0 <7
- X0/X1 < 8, and R0/X0 <3
- X0/X1 < 5, and R0/X0 <2
- X0/X1 < 3, and R0/X0 <1

Correct statement: 4. X0/X1 < 3, and R0/X0 <1

## A graph that can be drawing without crossover of edges is termed as

A graph that can be drawing without crossover of edges is termed as:

- Planar graph
- Non-planar graph

Correct answer: 1. Planar graph

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