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IMPORTANT OBJECTIVES QUESTIONS ENGINEERING MECHANICS.
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[Audio] A uniformly distributed load (UDL) acts over Option A A single point Option B A specific length with uniform intensity Option C The entire structure with varying intensity Option D A concentrated section of the structure Answer: Option B - A specific length with uniform intensity.
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[Audio] In a free body diagram, the weight of the object is usually represented as acting Option A Horizontally Option B Tangentially Option C At the support points Option D At the centroid vertically downward Answer: D-At the centroid vertically downward.
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[Audio] When two or more forces acting at a point are combined into a single force, it is called Option A Equilibrant Option B Resultant force Option C Couple Option D Load factor Answer: B-Resultant force.
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[Audio] In a hinged support, reactions are Option A Two Option B Three Option C Four Option D Six Answer: A-Two.
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[Audio] Which is NOT a primary objective of engineering design Option A Structural integrity Option B Optimize material usage Option C Maximize aesthetic appeal Option D Predict system behavior Answer: C-Maximize aesthetic appeal.
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[Audio] Varignon'stheorem is used to determine Option A Magnitude of a single force Option B Resultant of concurrent forces Option C Moment of resultant force Option D Angle of inclination Answer: C-Moment of resultant force.
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[Audio] A free body diagram shows Option A Internal stresses Option B Only applied forces Option C All external forces and moments Option D Deformation Answer: C-All external forces and moments.
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[Audio] Lami'stheorem is applicable to Option A Any force system Option B Three concurrent forces Option C Parallel forces Option D Non-concurrent forces Answer: B-Three concurrent forces.
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[Audio] Roller support reaction is Option A Parallel Option B Perpendicular Option C 45° Option D Tangential Answer: B-Perpendicular.
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[Audio] The primary purpose of a support in a structure is to Option A Provide resistance to applied loads Option B Increase load intensity Option C Add weight to the structure Option D Allow free movement Answer: A-Provide resistance to applied loads.
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[Audio] The algebraic sum of the moments of a force system about a point is equal To the moment of the resultant force about the same point. This statement Is known as Option A Lami'stheorem Option B Varignon'stheorem Option C Pascal's theorem Option D Newton's first law Answer: B-Varignon'stheorem.
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[Audio] Which type of support allows rotation but prevents translation in any direction Option A Fixed support Option B Roller support Option C Hinge support Option D Free support Answer: C-Hinge support.
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[Audio] A roller support primarily resists forces in which direction Option A Horizontal Option B Vertical Option C Both a & b Option D Rotational Answer: B-Vertical.
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[Audio] For a body to be in static equilibrium, the following condition(s) must be satisfied Option A Sum of all forces must be zero Option B Sum of all moments must be zero Option C Both a and b Option D Only sum of moments must be zero Answer: C-Both a and b.
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[Audio] If a system of forces acting on a body produces no motion, the system is said to be in Option A Motion Option B Dynamic state Option C Equilibrium Option D Inertia Answer: C-Equilibrium.
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[Audio] The reaction at the roller supported end of a beam is always Option A Vertical Option B Horizontal Option C Inclined Option D Zero Answer: A-Vertical.
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[Audio] Composition of forces means Option A Replacing a force by two or more components Option B Replacing multiple forces by their resultant Option C Ignoring all forces Option D Drawing the free body diagram Answer: B-Replacing multiple forces by their resultant.
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[Audio] The first law of motion states that Option A F = ma Option B To every action there is an equal and opposite reaction Option C A body continues in its state of rest or uniform motion unless acted upon by an external force Option D Force is proportional to rate of change of momentum Answer: C-A body continues in its state of rest or uniform motion unless acted upon by an external force.
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[Audio] Which of the following is not a type of load acting on beams Option A Point load Option B Uniformly distributed load (UDL) Option C Uniformly varying load (UVL) Option D Circular load Answer: D-Circular load.
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[Audio] The condition of equilibrium for coplanar non-concurrent forces includes Option A Sum of horizontal components must be zero Option B Sum of vertical components must be zero Option C Sum of moments about any point must be zero Option D All of the above Answer: D-All of the above.