Testwala logoTestwala
HomeMocksPracticePYQsDashboard
Testwala logoTestwala

Timing-accurate mock tests and PYQs for SSC, Banking and Railway exams — so the real paper feels like a revision.

Exams

  • SSC exams
  • Banking exams
  • Railway exams
  • All exams

Practice

  • Practice questions
  • Mock test series
  • Sectional tests
  • Year-wise PYQs
  • Performance analytics

Company

  • About us
  • Help Centre
  • Pricing
  • Sign in

Legal

  • Privacy Policy
  • Terms of Service

Contact

  • hello@testwala.co.in
  • Telegram
  • +91 62816 87760

Practice interface modeled on the official exam pattern — not the official examination. Testwala is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 Testwala. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. UPPSC PCS
  6. ›
  7. 2017
  8. ›
  9. Q95

UPPSC PCS 2017 · Question 95 of 149

A mobile phone charger is:

Current Affairs

  1. AAn inverter
  2. BA UPS
  3. CA step up transformer
  4. DA set down transformerCorrect

Answer: D. A set down transformer

Explanation

Step-down transformers are used in mobile phone chargers. The mobile phone charger is a step-down transformer.

Source: edurev.in UPPSC Prelims 2017 GS Paper I with Answer Key and Solutions

← Q94View full paper (149 questions)Q96 →

Practice the full UPPSC PCS 2017 paper

Timed test with all 149 questions, just like the real exam.

Start test