# The function of breather in a transformer is _____ ? with Answer - Electrical Engineering Mcqs | TestPrep

> Solved MCQ: The function of breather in a transformer is _____ ? Correct Answer: D. to arrest flow of moisture when outside air enters the transformer. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

---

Tested in Competitive Exams:

- [NTS Test Prep](https://test-prep.blog/exams/nts)
- [FPSC Past Papers](https://test-prep.blog/exams/fpsc)
- [PPSC Solved MCQs](https://test-prep.blog/exams/ppsc)
- [PMDC MDCAT 2026](https://test-prep.blog/exams/mdcat)
- [UET ECAT Prep](https://test-prep.blog/exams/ecat)
- [CSS Central Superior](https://test-prep.blog/exams/css)

- [Electrical Engineering Mcqs](https://test-prep.blog/categories/electrical-engineering-mcqs)
Difficulty: Moderate 73% Accuracy

# The function of breather in a transformer is _____ ?

Direct Answer & Quick Reference

The correct option is **D. to arrest flow of moisture when outside air enters the transformer**.

A. to provide oxygen inside the tank

B. to cool the coils during reduced load

C. to cool the transformer oil

D. to arrest flow of moisture when outside air enters the transformer **(Correct Answer)**

✨ Explain with AI

Verified Key: D. to arrest flow of moisture when outside air enters the transformer
Solved by 5,978+ students

Verified against official examination board answer keys and standard curriculum textbooks.

- [Previous Question An over excited synchronous motor is used for _____ ?](https://test-prep.blog/mcq/an-over-excited-synchronous-motor-is-used-for-f1d24557-3b04-4b89-ae04-f728affbdedd)
- [Next Question Regenerative method of braking is based on that _____ ?](https://test-prep.blog/mcq/regenerative-method-of-braking-is-based-on-that-aeaab186-d642-4fa7-be4a-10b96751e5bc)

- [Practice More Electrical Engineering Mcqs MCQs](https://test-prep.blog/quiz/smart?category=electrical-engineering-mcqs)
- [How We Verify Questions →](https://test-prep.blog/editorial-policy)

## Subject Overview

Explore thousands of solved past paper MCQs for Electrical Engineering Mcqs categorized with explanations.

- [Browse All Electrical Engineering Mcqs MCQs →](https://test-prep.blog/categories/electrical-engineering-mcqs)

## Related Questions

- [An over excited synchronous motor is used for _____ ?](https://test-prep.blog/mcq/an-over-excited-synchronous-motor-is-used-for-f1d24557-3b04-4b89-ae04-f728affbdedd)
- [Regenerative method of braking is based on that _____ ?](https://test-prep.blog/mcq/regenerative-method-of-braking-is-based-on-that-aeaab186-d642-4fa7-be4a-10b96751e5bc)
- [Solid Grounding is used for Voltages?](https://test-prep.blog/mcq/solid-grounding-is-used-for-voltages-394dae24-ff8b-4ee5-89a5-7fa6bdfb34cc)
- [select the only wrong statement?](https://test-prep.blog/mcq/select-the-only-wrong-statement-fdd5b9aa-1bc8-4a5e-9281-e19e4e6912d4)
- [select the correct statement?](https://test-prep.blog/mcq/select-the-correct-statement-296d8297-6efe-441c-baf9-3fb6148deade)

---
*Source: https://test-prep.blog/mcq/the-function-of-breather-in-a-transformer-is___________-872a6536-43a5-43c9-a632-dcccd2297759*
*Format: Markdown for Agents (Content Negotiation: text/markdown)*