Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Machining and Machine Tool Operations - Materials, Manufacturing and Industrial Engineering - Mechanical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Machining and Machine Tool Operations. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Mechanical Engineering (ME) 2026 | 2026 | 3 | View paper |
| Mechanical Engineering (ME) 2025 | 2025 | 2 | View paper |
| Mechanical Engineering (ME) 2024 | 2024 | 3 | View paper |
| Mechanical Engineering (ME) 2021 [Session 1] | 2021 | 4 | View paper |
| Mechanical Engineering (ME) 2020 [Session 1] | 2020 | 3 | View paper |
| Mechanical Engineering (ME) 2020 [Session 2] | 2020 | 4 | View paper |
| Mechanical Engineering (ME) 2019 [Session 1] | 2019 | 4 | View paper |
| Mechanical Engineering (ME) 2019 [Session 2] | 2019 | 3 | View paper |
| Mechanical Engineering (ME) 2018 [Session 1] | 2018 | 4 | View paper |
| Mechanical Engineering (ME) 2018 [Session 2] | 2018 | 6 | View paper |
| Mechanical Engineering (ME) 2016 [Session 1] | 2016 | 2 | View paper |
| Mechanical Engineering (ME) 2016 [Session 2] | 2016 | 2 | View paper |
| Mechanical Engineering (ME) 2016 [Session 3] | 2016 | 4 | View paper |
| Mechanical Engineering (ME) 2015 [Session 3] | 2015 | 1 | View paper |
| Mechanical Engineering (ME) 2014 [Session 1] | 2014 | 3 | View paper |
| Mechanical Engineering (ME) 2014 [Session 2] | 2014 | 3 | View paper |
| Mechanical Engineering (ME) 2014 [Session 3] | 2014 | 5 | View paper |
| Mechanical Engineering (ME) 2014 [Session 4] | 2014 | 3 | View paper |
| Mechanical Engineering (ME) 2013 [Session 1] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 2] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 3] | 2013 | 5 | View paper |
| Mechanical Engineering (ME) 2013 [Session 4] | 2013 | 4 | View paper |
| Mechanical Engineering (ME) 2011 | 2011 | 1 | View paper |
| Mechanical Engineering (ME) 2010 | 2010 | 2 | View paper |
| Mechanical Engineering (ME) 2009 | 2009 | 5 | View paper |
| Mechanical Engineering (ME) 2008 | 2008 | 6 | View paper |
| Mechanical Engineering (ME) 2007 | 2007 | 5 | View paper |
Practice every matching question in batches of 20, with every available option.
In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principal cutting edge angle is 90°, the shear angle in degree is
In electrodischarge machining (EDM), if the thermal conductivity of tool is high and the specific heat of work piece is low, then the tool wear rate and material removal rate are expected to be respectively
Neglect over-travel or approach of the tool. When tool life is 20 min, the machining time in min for a single pass is

Minimum shear strain in orthogonal turning with a cutting tool of zero rake angle is
| Inter electrode gap | = 0.2 mm |
| Supply voltage (DC) | = 12 V |
| Specific resistance of electrolyte | = 2 Ω cm |
| Atomic weight of Iron | = 55.85 |
| Valency of Iron | = 2 |
| Faraday’s constant | = 96540 Coulombs |
A shear of 20 mm (S = 20 mm) is now provided on the blade. Assuming force vs displacement curve to be trapezoidal, the maximum force (in kN) exerted is
A single-point cutting tool with 12° rake angle is used to machine a steel work-piece. The depth of cut, i.e. uncut thickness is 0.81 mm. The chip thickness under orthogonal machining condition is 1.8 mm. The shear angle is approximately
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