Transmissibility in a support excitation system is defined by A) Ratio of absolute amplitude of the mass to the excitation amplitude of the support B) Reciprocal of (a) C) Ratio of the force transmitted to the foundation, to the equivalent force corresponding to maximum displacement excitation D) None of the above

Transmissibility in a support excitation system is defined by
A) Ratio of absolute amplitude of the mass to the excitation amplitude of the support
B) Reciprocal of (a)
C) Ratio of the force transmitted to the foundation, to the equivalent force corresponding to maximum
displacement excitation
D) None of the above
by

1 Answer

Answer :

B) Reciprocal of (a)
by

Related questions

Transmissibility in a force excitation system is defined by the ratio of the A) Maximum excitation force to the force transmitted to the foundation B) Force transmitted to the foundation, to the maximum excitation force C) Maximum static deflection of the ass to the deflection of the foundation D) None of the above

Description : Transmissibility in a force excitation system is defined by the ratio of the A) Maximum excitation force to the force transmitted to the foundation B) Force transmitted to the foundation, to the maximum ... Maximum static deflection of the ass to the deflection of the foundation D) None of the above

Last Answer : B) Force transmitted to the foundation, to the maximum excitation force

Transmissibility is the ratio of a. force transmitted and exciting force b. force applied and the resulting displacement c. input displacement and output displacement

Description : Transmissibility is the ratio of a. force transmitted and exciting force b. force applied and the resulting displacement c. input displacement and output displacement

Last Answer : a. force transmitted and exciting force

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The ratio of the force transmitted to the force applied is known as the ____________ of the spring support. A. isolation factor B. transmissibility ratio C. both A and B D. none of the above

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Last Answer : C. both A and B

The ratio of the force transmitted to the force applied is known as the ____________ of the spring support. (A) isolation factor (B) transmissibility ratio (C) both A and B (D) none of the above

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A single degree of freedom spring-mass system is subjected to a harmonic force of constant amplitude. For an excitation frequency of √3k/m , the ratio of the amplitude of steady state response to the static deflection of the spring is __________ A. 0.2 B. 0.5 C. 0.8 D. None of the above

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During vibrations any machine has unbalanced force of 392N and if it transmitted force of magnitude 58.3N then transmissibility value is A 0.481 B 0.822 C 0.148 D 0.296

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Last Answer : C 0.148

Logarithmic decrement is defined as the ____________ of the amplitude reduction factor. (A) reciprocal (B) logarithm (C) natural logarithm (D) all of the above

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When a periodic disturbing force is applied to a machine, the force is transmitted to the ___________ by the means of spring. (A) dampers (B) foundation (C) mass (D) none of the above

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A vibrating machine of 100 kg is mounted on a rubber pad which has stiffness of 500 N/m. Determine force transmitted to the foundation if the unbalanced force 500 N acts on it. The frequency ratio (ω/ω n ) is 1.5 and ξ = 0.5 A. 461.62 N B. 400.23 N C. 450 N D. Insufficient data

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Last Answer : A. 461.62 N

A vibrating system having mass 1kg, a spring of stiffness 1000N/m and damping factor of 0.632 and it is put to harmonic excitation of 10N. Find the amplitude at resonance. A 0.079 B 7.9C 0.056 D 0.00791

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Last Answer : D 0.00791

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When a periodic disturbing force is applied to a machine, the force is transmitted to the foundation by the means of spring. a) True b) False

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If frequency of excitation of a forced vibration system with negligible damping is very close to natural frequency of the system, then the system will A) Execute harmonic motion of large amplitude B) Beat with a very high peak amplitude C) Perform aperiodic motion D) None of the above

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Consider the steady-state absolute amplitude equation shown below, if ω / ω n = √2 then amplitude ratio (X/Y) =? (X/Y) = √{1 + [ 2ξ (ω/ω n )] 2 } / √{[1 – (ω/ω n ) 2 ] 2 + {2ξ (ω/ω n ) 2 } A. 0 B. 1 C. less than 1 D. greater than 1

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Last Answer : B. 1

Magnification factor is the ratio of the maximum displacement due to forced vibrations to the deflection due to _______ A Static force B Dynamic force C Torsion D Compression

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Last Answer : A Static force

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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Magnification factor is the ratio of the maximum displacement due to forced vibrations to the deflection due to _______ a) Static force b) Dynamic force c) Torsion d) Compression

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Isolation factor is twice the transmissibility ratio. a) True b) False

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In above numerical what will be the frequency corresponding to the peak amplitude A 14.18rad/sec B 24.13rad/sec C 20.22rad/sec D 22.32rad/sec

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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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A weight of 50 N is suspended from a spring of stiffness 4000N/m and subjected to a harmonic force of magnitude 60N and frequency 60 Hz. what will be the static displacement of the spring due to maximum applied force A. 0.015m B. 0.15 m C. 15 m D. 150m

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Maximum displacement due to forced vibration is ____________ the displacement due to static force. (A) inversely proportional to (B) directly proportional to (C) independent of (D) none of the above

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In vibration isolation system, if ω/ωn < 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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In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is A. Equal to 1 B. Equal to √2 C. Less than √2 D. Greater than √2

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

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A 10 Kg mass suspended by spring of stiffness 1000 N/m. the natural frequency of the system after giving excitation will be A. 0 Hz B. 1.59 Hz C. 2 Hz D. 15.9 Hz

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The rate of decay of oscillations is known as....... A. critical damping B. damping coefficient C. transmissibility D. logarithmic decrement

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When the frequency of external exciting force is equal to the natural frequency of the vibration of the system A. The amplitude of vibration is zero B. The amplitude of vibration is significantly small C. The amplitude of vibration is very large D. The amplitude does not change

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In measuring critical speed of shaft experiment, it was found that the frequency ratio is 0.707 when the eccentricity is 0.05 m. what will be the displacement of the system. A. 0.05 m B. 0.005 m C. 0.5 m D. Infinite

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In vibration isolation system, if ω/ωn, then the phase difference between the transmitted force and the disturbing force is A 0° B 90° C 180° D 270°

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Last Answer : C 180°

In vibration isolation system, if ω/ω n > 1, then the phase difference between the transmitted force and the disturbing force is A. 0° B. 90° C. 180° D. 270°

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In vibration isolation system, if ω/ω n , then the phase difference between the transmitted force and the disturbing force is a) 0° b) 90° c) 180° d) 270°

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Last Answer : c) 180°

In vibration isolation system, if ω/ω n , then the phase difference between the transmitted force and the disturbing force is a) 0° b) 90° c) 180° d) 270

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In vibration isolation system, if ω/ω n > 1, then the phase difference between the transmitted force and the disturbing force is a) 0° b) 90° c) 180° d) 270°

Description : In vibration isolation system, if ω/ω n > 1, then the phase difference between the transmitted force and the disturbing force is a) 0° b) 90° c) 180° d) 270°

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Which of the following relations is true for viscous damping? A) Force α relative displacement B) Force α relative velocity C) Force α (1 / relative velocity) D) None of the above

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Which of the following relations is true for viscous damping? a. Force α relative displacement b. Force α relative velocity c. Force α (1 / relative velocity) d. None of the above

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f the mass is of 10 Kg, find the natural frequency in Hz of the free longitudinal vibrations. The displacement is 0.01mm. a) 44.14 b) 49.85 c) 43.43 d) 46.34

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When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as * 1 point (A) simple pendulum (B) torsional pendulum (C) compound pendulum (D) second’s pendulum

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Last Answer : C. compound pendulum