MECHANICAL ENGINEERING JOB INTERVIEW QUESTIONS :- 1.What is an isobaric process? Ans.-An isobaric process is a thermodynamic process in which the pressure stays constant: ΔP = 0 2.What is Factor of safety? Ans.-Factor of safety (FoS),safety factor (SF), is a term describing the structural capacity of a system beyond the expected loads or actual loads. Essentially, how much stronger the system is than it usually needs to be for an intended load. 3.Which one is more efficient? A four stroke engine or a two stroke and why? Ans.-This depends on what type of efficiency you are referring to. As far as power generation, two-stroke by far. Simply because it accomplishes in two strokes, what a four stroke motor takes twice as long to accomplish. Fuel consumption is a different story. Four strokes are more efficient because there is separation of fuel and engine oil, as well as intake and exhaust gases, leading to less pollution, and better mileage. 4.What is bending moment? Ans.-A bending moment is a measure of the average internal stress induced in a structural element when an external force or moment is applied to the element causing the element to bend.
Posted on: Sat, 26 Oct 2013 12:59:55 +0000
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