Hard Mechanical Engineering Quiz – 7 Expert Questions
A challenging set of seven questions covering core mechanical engineering topics, designed for seasoned professionals.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
A thin steel plate 10 mm thick contains a central circular hole of 5 mm diameter and is subjected to uniform tensile stress. Which expression gives the stress concentration factor Kt?
- 2
For an ideal Brayton cycle with pressure ratio 10:1, compressor isentropic efficiency 85 % and turbine efficiency 90 %, what is the approximate thermal efficiency?
- 3
A cantilever beam of length L, uniform EI, with a tip load P has a fundamental natural frequency given by ω = β² sqrt(EI/(ρ A L⁴)). Which constant β corresponds to the first mode?
- 4
Using Ashby material selection, which class provides the highest specific stiffness (E/ρ) for aerospace structures?
- 5
In Reynolds‑averaged CFD, which inlet condition best represents a fully developed turbulent pipe flow?
- 6
The involute profile of a gear tooth is generated by unwinding a string from a base circle. Which parameter primarily controls the addendum height?
- 7
A second‑order feedback system has transfer function G(s)=ω_n²/(s²+2ζω_n s+ω_n²). If ζ=0.707 and ω_n=100 rad/s, what is the -3 dB bandwidth approximately?
Never miss a quiz!
Daily challenges on Telegram
Check These Out Too
Iconic Movie Quotes Quiz
How well do you know your movie lines? See if you can match these famous quotes to their films!
80s Movie Mania: The Ultimate Trivia Gauntlet
Think you know your 'Back to the Future' from your 'Blade Runner'? Prove your 80s movie mastery with these challenging questions!
Can You Name These Capital Cities?
Put your global knowledge to the test! Match the country to its capital city.
Easy Music Trivia Challenge!
Think you know music? Let's find out with this super easy trivia quiz!
History's Hidden Chapters: A Scandalous Quiz
Dive deep into the annals of time and test your knowledge of history's most surprising secrets and scandalous events. Are you ready for the truth?
Idioms & Phrases Challenge
How well do you know common English idioms and phrases? Let's find out!