---
title: "Capital budgeting importance and techniques"
subject: "Project Engineering"
chapter: 6
key: "semester_7/project_engineering:capital-budgeting-importance-techniques"
source: https://www.bctengineer.com/q/semester_7/project_engineering/capital-budgeting-importance-techniques
site: BCT Engineering
---

# Capital budgeting importance and techniques

Project Engineering · Chapter 6: Introduction to Project Financing

- Asked in: 2082 Bhadra, 2+4 marks
- Video: [Capital Budgeting: NPV, IRR, Payback | MUST-KNOW for Finance Roles](https://www.youtube.com/watch?v=7gG0Evugubo) — Kenji Explains
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_7/project_engineering/capital-budgeting-importance-techniques
- Whole chapter: https://www.bctengineer.com/md/semester_7/project_engineering/chapter-6

## Question

Why is capital budgeting important in a project? What are the techniques for evaluating capital budgeting projects?

## Short answer

Capital budgeting is important because it commits large funds long-term, decisions are irreversible, and it determines future growth and risk. Techniques include non-discounting methods (payback, ARR) and discounting methods (NPV, IRR, PI), with discounting methods like NPV being more reliable.

## Answer

#### Importance of capital budgeting

1. Large funds are committed for a long period.
2. Decisions are irreversible; a wrong decision may cause heavy loss.
3. It decides the future growth and profit of the firm.
4. It affects the firm's risk and its cost of capital.
5. Funds are limited, so projects have to be ranked.
6. It needs a long-term forecast of demand, cost and technology.

#### Techniques for evaluating projects

**Non-discounting (traditional) methods:** payback period and accounting rate of return (ARR).

**Discounting methods:** net present value (NPV), internal rate of return (IRR), profitability index (PI) and benefit-cost ratio.

| Method | Rule |
|---|---|
| Payback period | Accept if payback is less than the standard period |
| Accounting rate of return (ARR) | Accept if ARR is more than the required rate |
| Net present value (NPV) | Accept if NPV > 0 |
| Internal rate of return (IRR) | Accept if IRR > required rate (MARR) |
| Profitability index (PI) | Accept if PI > 1 |
| Benefit-cost ratio | Accept if B/C > 1 |

Discounting methods consider the time value of money and are more reliable; NPV is the most commonly recommended.

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. Why is capital budgeting important?
   A. Large funds are committed for long and decisions are hard to reverse
   B. It involves only small, reversible decisions
   C. It ignores forecasts
   D. It concerns only daily expenses
   Answer: A. Large long-term commitments and irreversibility mean a wrong decision can cause heavy loss. (Key point: Importance)

2. Which pair are discounting methods?
   A. Payback period and ARR
   B. NPV and IRR
   C. ARR and payback
   D. Payback and B/C only
   Answer: B. NPV, IRR, PI and benefit-cost ratio discount cash flows; payback and ARR are non-discounting. (Key point: Technique classes)

3. Which acceptance rule is correct?
   A. Accept if PI < 1
   B. Accept if NPV < 0
   C. Accept if IRR > required rate (MARR)
   D. Accept if B/C < 1
   Answer: C. Accept when NPV > 0, IRR > MARR, PI > 1 and B/C > 1. (Key point: Decision rules)

4. Why are discounting methods considered more reliable?
   A. They are simpler
   B. They use accounting profit
   C. They ignore later cash flows
   D. They consider the time value of money
   Answer: D. They account for the time value of money; NPV is the most commonly recommended. (Key point: Reliability)

## Related in Project Engineering

- [Capital budgeting methods; most reliable](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-methods-reliable) — Project Engineering, chapter 6
- [Capital budgeting; ARR/ROE; attract private sector](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-arr-roe-private-hydropower) — Project Engineering, chapter 6
- [Finance sources; capital budgeting steps; NPV](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Asources-project-finance-steps-capital-budgeting) — Project Engineering, chapter 6
- [Capital budgeting and its features](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-process-features) — Project Engineering, chapter 6
- [Capital budgeting; importance; NPV](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-importance-npv) — Project Engineering, chapter 6
- [Capital budgeting needs, steps, process](https://www.bctengineer.com/question.md?key=semester_7%2Fproject_engineering%3Acapital-budgeting-needs-steps-process) — Project Engineering, chapter 6

## Related in other subjects

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- [Key principles of project budgeting](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Abudgeting-principles) — ICT Project Management, chapter 9
- [Cost budgeting](https://www.bctengineer.com/question.md?key=semester_7%2Fict_project_management%3Acost-budgeting) — ICT Project Management, chapter 9
- [Repeatability assumption, select best of three projects](https://www.bctengineer.com/question.md?key=semester_6%2Fengineering_economics%3Arepeatability-abc-14) — Engineering Economics, chapter 4, asked 2×
