PYQPulse
HomeMocksPracticePYQsUpdatesDashboard
PYQPulse

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. PYQPulse is not affiliated with the Staff Selection Commission, IBPS, SBI, RBI, NABARD, SEBI or Indian Railways.

© 2026 PYQPulse. All rights reserved.

Built for aspirants, by aspirants.

HomeMocksPracticeStats
  1. Home
  2. ›
  3. PYQs
  4. ›
  5. RRB Junior Engineer / DMS / CMA
  6. ›
  7. 2019
  8. ›
  9. Q3504

RRB Junior Engineer / DMS / CMA 2019 · Question 3504 of 3719

In electrochemical grinding process, the material removal rate is inversely proportional to

  1. ATotal supply current
  2. BBoth density of workpiece material and supply of current
  3. CDensity of workpiece materialCorrect
  4. DFeed rate of electrode

Answer: C. Density of workpiece material

Explanation

Explanation : Electrochemical Grinding Work is machined by considered action of electrochemical effect (90%) and conventional grinding (10%) The material removal rate is inversely proportional to the Density of the workpiece material. A rotating grinding wheel will be used as a tool. The shaped tool is generally made of brass ,copper ,bronze, or stainless steel . The electrolyte is a highly conductive inorganic salt solution , such as sodium chloride mixed in water or sodium nitrate . It is pumped at a high rate through the passages in the tool. The penetration rate of the tool is proportional to the current density .

Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

← Q3503View full paper (3719 questions)Q3505 →

Practice the full RRB Junior Engineer / DMS / CMA 2019 paper

Timed test with all 3719 questions, just like the real exam.

Start test