Ability of a material to __________ is indicated by its damping capacity. (A) Withstand compression (B) Absorb vibration (C) Absorb shock (D) None of these

Ability of a material to __________ is indicated by its damping
capacity.
(A) Withstand compression
(B) Absorb vibration
(C) Absorb shock
(D) None of these
by

1 Answer

Answer :

(B) Absorb vibration
by

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If ωmax is the frequency at which the peak amplitude occurs and ωn is the natural frequency of the system then In a forced vibration system with damping, the higher the damping, A) More will be the difference between ωn and ωmax B) Less will be the difference between ωn and ωmax C) The difference of ωn and ωmax is independent of damping in this system D) The difference between ωn and ωmax will be zero

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Calculate natural frequency of damped vibration, if damping factor is 0.52 and A natural frequency of the system is 30 rad/sec which consists of machine supported on springs and dashpots. ( A )25.62 rad/sec ( B )20.78 rad/sec ( C )14.4 rad/sec ( D )15.33 rad/sec

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The ratio of maximum displacement of the forced vibration to the deflection due to the static force, is known as A. Damping FactorB. Damping Coefficient C. Logarithmic Decrement D. Magnification Factor

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The advantage of critical damping is A. That vibrating body come to rest in smallest possible time B. There is no vibration C. That amplitude of vibration is maximum D. The amplitude of vibration is minimum

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In vibration isolation system, if ω/ω n < 2, then for all values of damping factor, the transmissibility will be a) less than unity b) equal to unity c) greater than unity d) zero

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Calculate natural frequency of damped vibration, if damping factor is 0.52 and natural frequ the system is 30 rad/sec which consists of machine supported on springs and dashpots. a. 25.62 rad/secb. 20.78 rad/sec c. 14.4 rad/sec d. 15.33 rad/sec

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The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as a) Damping factor b) Damping coefficient c) Logarithmic decrement d) Magnification factor

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Reduction in vibration amplitude after one complete cycle of single degree free vibration with dry friction damping is_____, if where F"= frictional force between mass and surface and k =stiffness of the system. a)4F/k a b) 2f/K C) 3F/k D)8F/k

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The ratio of the maximum displacement of the forced vibration to the deflection due to the static force is known as (A) damping factor (B) damping coefficient (C) logarithmic decrement (D) magnification factor

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In vibration isolation system, if ω/ω n < 2, then for all values of damping factor, the transmissibility will be a) less than unity b) equal to unity c) greater than unity d) zero

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