Strength Of Materials MCQ Questions & Answers

According to Lami's theorem

A) Three forces acting at a point will be in equilibrium B) Three forces acting at a point can be represented by a triangle, each side being proportional to force C) If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium D) If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

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Answer: Option D

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Which one of the following statements is not correct

A) The tangent of the angle of friction is equal to coefficient of friction B) The angle of repose is equal to angle of friction C) The tangent of the angle of repose is equal to coefficient of friction D) The sine of the angle of repose is equal to coefficient to friction

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Answer: Option D

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A single force and a couple acting in the same plane upon a rigid body

A) Balance each other B) Cannot balance each other C) Produce moment of a couple D) Are equivalent

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Answer: Option B

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If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be

A) Maximum B) Minimum C) Zero D) Infinity

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Answer: Option C

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Center of gravity of a solid cone lies on the axis at the height

A) One-fourth of the total height above base B) One-third of the total height above base C) One-half of the total height above base D) Three-eighth of the total height above the base

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Answer: Option A

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A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

A) remain horizontal B) slant up towards direction of pull C) slant down towards direction of pull D) unpredictable

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Answer: Option C

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Strength Of Materials MCQ Questions & Answers | Civil Engineering