MCQ Questions and Answers on Dynamics of Machinery

A. 2 coupled second-order ordinary differential equations.

B. 2 coupled second-order partial differential equation.

C. 2 uncoupled second-order ordinary differential equations.

D. 2 uncoupled second-order partial differential equation.

A. ω/ωn>>1

B. ω/ωn<<1

C. ω/ωn=1

D. ω/ωn=0

A. Roots are real

B. Roots are complex conjugate

C. Roots are equal

D. Independent of the equation

A. Roots are real

B. Roots are complex conjugate

C. Roots are equal

D. Independent of the equation

A. Stroboscope is non-contact type frequency instrument

B. Stroboscope can measure frequency upto 5 Hz

C. Stroboscope uses electromagnetic radiations to measure frequency

D. All of the above

A. N

B. N/m

C. unitless

D. N/m2

A. 3000 N/m

B. 1000N/m

C. 2000 N/m

D. 5000 N/m

A. Torsional vibration absorber

B. Centrifugal pendulum absorber

C. Lanchester Damper

D. Houdaille dampe

A. x1/x2

B. log (x1/x2)

C. loge (x1/x2)

D. log (x1.x2)

A. mrω2 sin θ + mrω2 (sin 2θ/n)

B. mrω2 sin θ + mrω2 (cos 2θ/n)

C. mrω2 cos θ + mrω2 (cos 2θ/n)

D. mrω2 (sin θ + sin 2θ/n)