Machine Kinematics Multiple Choice Questions and Answers

Questions

1 The periodic time (tp) is given by

A ω / 2 π

B 2 π / ω

C 2 π × ω

D π/ω

View Answer

Answer: 2 π / ω

2 The velocity of a particle moving with simple harmonic motion is . . . . at the mean position.

A zero

B minimum

C maximum

D none of the mentioned

View Answer

Answer: maximum

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3 The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by

A ω √r² − x²

B ω √x² − r²

C ω2 √r² − x²

D ω2√x² − r²

View Answer

Answer: ω √r² − x²

4 The maximum acceleration of a particle moving with simple harmonic motion is

A ω

B ω.r

C ω².r

D ω²/r

View Answer

Answer: ω².r

5 The frequency of oscillation for the simple pendulum is

A 1/2π √L/g

B 1/2π √g/L

C 2π √L/g

D 2π√g/L

View Answer

Answer: 1/2π √g/L

6 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

A simple pendulum

B torsional pendulum

C compound pendulum

D second’s pendulum

View Answer

Answer: compound pendulum

7 The frequency of oscillation of a compound pendulum is

A 1/2π √g.h/k²G +h²

B 1/2π √k2^G +h²/g.h

C 2π√g.h/k²G +h²

D 2π√k²G +h²/g.h

View Answer

Answer: 1/2π √g.h/k²G +h²

8 The equivalent length of a simple pendulum which gives the same frequency as the compound pendulum is

A h/ k²G +h²

B k²G +h²/h

C h²/k²G +h²

D k²G +h²/h²

View Answer

Answer: k²G +h²/h

9 The centre of percussion is below the centre of gravity of the body and is at a distance equal to

A h / kG

B h.kG

C h²/kG

D k²G/h

View Answer

Answer: k²G/h

10 The frequency of oscillation of a torsional pendulum is

A 2πk_G/r √g/I

B r/2πk_G√g/I

C 2πk_G/r√I/g

D r/2πk_G√I/g

View Answer

Answer: r/2πk_G√g/I

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