Mechanical Mastery: Ten Hard Questions
A rigorous set of multiple-choice items designed to assess deep knowledge of mechanical systems and analytical methods.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
What is the stress concentration factor for an infinite plate with a central circular hole under uniform tension?
- 2
Which expression represents the ideal Brayton cycle thermal efficiency?
- 3
Which property most strongly influences the fundamental bending frequency of a uniform cantilever beam?
- 4
At approximately what Reynolds number does laminar flow in a smooth pipe begin to transition to turbulence?
- 5
What is the minimum acceptable gear tooth contact ratio for smooth power transmission?
- 6
How is heat‑exchanger effectiveness defined?
- 7
In an Ashby stiffness‑density chart, which property is plotted on the vertical axis?
- 8
The efficiency of a hydraulic pump is the ratio of:
- 9
A milling cutter has a diameter of 10 mm and the required cutting speed is 200 m/min. What spindle speed (rpm) is closest?
- 10
For a reversible isentropic expansion of an ideal gas, which relation holds?
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