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Few Sample Questions and Answers:
Q. Can Poisson Ratio be Negative or zero?
Ans.: Poisson's ratio for a cork is almost zero. Yes Poisson's ratio can be negative. Such materials are called as "auxetics". E.g. Human ligaments
Q. Poisson’s Ratio is higher in, Rubber/Steel/Wood?
Ans.:
For rubber = 0.5
For steel = 0.288
For wood < 0.2
Thus Poisson’s ratio is higher in RUBBER.Q: What is Truss?
Ans.: Truss is a rigid structure composed of number of straight members pin jointed to each other.
It can sustain dynamic and static load without any relative motion to each other.
Q. State Third Law of Thermodynamics.
Ans.: Third Law of Thermodynamics states that entropy of the system approaches constant value as the temperature approaches absolute zero.
Q: Which conducts heat faster steel or copper or brass?
Ans.: Copper conducts heat faster than steel or brass.
Q: State Stefan–Boltzmann Law.
Ans.: The total energy radiated per unit surface area of a black body in unit time is proportional to the fourth power of the thermodynamic temperature.
Ans.: Copper conducts heat faster than steel or brass.
Q: State Stefan–Boltzmann Law.
Ans.: The total energy radiated per unit surface area of a black body in unit time is proportional to the fourth power of the thermodynamic temperature.
σ = 5.670 x 10-8 Wm-2K-4
Q: State the difference between Unilateral and Bilateral Tolerance?
Ans.:
A unilateral tolerance is tolerance in which variation is permitted only in one direction from the specified direction. e.g. 1000 +0.000/-0.070.
Bilateral tolerance is tolerance in which variation is permitted in both direction from the specified direction. e.g. 1000 +0.070/-0.070.
Q: Definition of Octane Number and Cetane Number?
Ans.: Octane No. - Octane number is defined as the percentage, by volume, of iso-octane in the mixture of iso-octane and h-heptane. It is the measure of rating of SI engine.
Cetane No. - Cetane number is defined as the percentage, by volume, of n-cetane in the mixture of n-cetane and alpha methyl naphthalene. It is the measure of rating of CI engine.
Tks very much for your post.
ReplyDeleteAvoid surprises — interviews need preparation. Some questions come up time and time again — usually about you, your experience and the job itself. We've gathered together the most common questions so you can get your preparation off to a flying start.
You also find all interview questions at link at the end of this post.
Source: Download Ebook: Ultimate Guide To Job Interview Questions Answers:
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