- A. 6t² – 8t
- B. 3t² + 2t
- C. 6f – 8
- D. 6f – 4
Engineering Mechanics
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A particle moves along a straight line such that distance (x) traversed in ‘t’ seconds is given by x = t² (t – 4), the acceleration of the particle will be given by the equation_____.
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The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by_____.
- A. 2P sinθ/2
- B. 2P cosθ/2
- C. 2P tanθ/2
- D. 2P cotθ/2
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The necessary condition for forces to be in equilibrium is that these should be_____.
- A. Coplanar
- B. Meet at one point
- C. Both (A) and (B) above
- D. All be equal
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Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is _____ than that passing through its C.G. and parallel to the base.
- A. Nine times
- B. Six times
- C. Four times
- D. Two times
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Two blocks ‘A’ and ‘B’ of masses 150 kg and 50 kg respectively are connected by means of a string as shown in the below figure. The tension in all the three strings _____ be same.
- A. Will
- B. Will not
- C. Either A or B
- D. None of these
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When two elastic bodies collide with each other,_____.
- A. The two bodies will momentarily come to rest after collision
- B. The two bodies tend to compress and deform at the surface of contact
- C. The two bodies begin to regain their original shape
- D. All of the above
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The acceleration of a particle moving with simple harmonic motion is _____ at the mean position.
- A. Zero
- B. Minimum
- C. Maximum
- D. None of these
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A framed structure is perfect, if the number of members are _____ (2j – 3), where j is the number of joints.
- A. Equal to
- B. Less than
- C. Greater than
- D. None of these
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The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.).
- A. ω/2π
- B. 2π/ω
- C. 2π × ω
- D. π/ω
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The term ‘Centroid’ is_____.
- A. The same as centre of gravity
- B. The point of suspension
- C. The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
- D. None of the above