ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

31) When two springs with stiffness k are in series, their equivalent stiffness will be

Answer is:

(k/2)

32) 18/8 stainless steel refers to stainless steel grade with composition

Answer is:

18 % Chromium and 8 % Nickel

33) For a lightly damped vibrating system executing steady state forced vibration, the phase lag of displacement with respect to force at resonance is

Answer is:

90 degree

34) The ratio of volume to surface area of a solid semi sphere is related to its radius through

Answer is:

(2/9)

35) 98x98+2x100x2-4 is _____

Answer is:

10000

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