100 Engineering Mechanics MCQ Questions Answers

Engineering Mechanics MCQ Questions and Answers are extremely useful for engineering students preparing for competitive exams, technical interviews, and university assessments. These multiple choice questions help learners test their understanding of fundamental concepts such as forces, equilibrium, moments, friction, and dynamics. Regular practice of engineering mechanics objective questions improves problem-solving ability and conceptual clarity for mechanical, civil, and aerospace engineering students.

Engineering Mechanics MCQ for Competitive Exams

Engineering mechanics objective questions are frequently asked in major engineering examinations such as GATE, FE Exam, ESE, SSC JE, and various university semester examinations. Practicing MCQs helps candidates become familiar with the exam pattern and improves their speed and accuracy when solving conceptual and numerical questions. These questions are designed to strengthen the core principles of statics and dynamics that form the foundation of many engineering subjects.

Important Topics Covered in Engineering Mechanics MCQs

Most Engineering Mechanics MCQ Questions and Answers cover essential topics including force systems, equilibrium of rigid bodies, centroid and center of gravity, moments and couples, friction, and kinematics and dynamics. Understanding these concepts helps students build a strong engineering foundation and prepares them for advanced subjects such as machine design, fluid mechanics, and structural analysis.

Engineering Mechanics MCQ Questions and Answers for Practice

The following Engineering Mechanics MCQ questions are designed to help students prepare for competitive engineering examinations and technical interviews. These multiple choice questions cover important concepts such as force systems, equilibrium, friction, centroid, and dynamics. Practicing these MCQs regularly can improve conceptual understanding and exam performance.

Question 1: The SI unit of moment of force is:

Question 2: A particle is in equilibrium under three concurrent forces. The resultant of any two forces must be:

Question 3: A body of mass 8 kg accelerates at 3 m/s². What is the force acting on it?

Question 4: The point through which the resultant weight of a body acts is called:

Question 5: A force of 50 N acts at a distance of 0.2 m from a pivot. What is the moment?

Question 6: Friction between two surfaces always acts:

Question 7: If coefficient of friction is 0.4 and the normal reaction is 200 N, what is the limiting friction?

Question 8: For a body to be in equilibrium in a plane force system:

Question 9: A projectile thrown vertically upward reaches the highest point where its velocity becomes:

Question 10: Work done is defined as:

Question 11: The SI unit of power is:

Question 12: The product of mass and velocity is called:

Question 13: A body of weight 500 N rests on a surface with coefficient of friction 0.25. What is the limiting friction?

Question 14: The perpendicular distance from the axis of rotation to the line of action of force is called:

Question 15: A body moving with constant velocity has:

Question 16: A 10 kg block rests on a horizontal surface with coefficient of static friction 0.5. What minimum horizontal force is required to just start motion? (g = 9.8 m/s²)

Question 17: The moment of a couple is independent of:

Question 18: A particle moving in circular motion with constant speed experiences which acceleration?

Question 19: A 2 m long uniform beam weighing 200 N is supported at its ends. What is the reaction at each support?

Question 20: A body moving with velocity 6 m/s and mass 4 kg strikes a wall and stops. What impulse acted on the body?

Question 21: If the resultant of two forces acting at right angles is 10 N and one force is 6 N, the other force is:

Question 22: A body moving with constant speed in a straight line has:

Question 23: The area under a velocity–time graph represents:

Question 24: The centroid of a semicircular lamina of radius R lies at what distance from the base?

Question 25: A 5 kg body moving at 10 m/s has kinetic energy equal to:

Question 26: In projectile motion neglecting air resistance, the horizontal velocity remains:

Question 27: The work-energy principle states that:

Question 28: The instantaneous center of rotation of a rolling wheel lies:

Question 29: If two equal forces act at an angle of 120°, the resultant is:

Question 30: The radius of gyration is defined as:

Question 36: A particle is subjected to two forces 30 N and 40 N acting at right angles. What is the magnitude of the resultant force?

Question 37: The moment of inertia of a rectangular area of width b and height h about its centroidal axis parallel to the base is:

Question 38: A body moving with velocity 12 m/s is brought to rest in 4 seconds. What is the retardation?

Question 39: The centroid of a triangle lies at a distance from its base equal to:

Question 40: For pure rolling motion of a wheel, which condition must be satisfied?

Question 41: A projectile is launched with velocity 20 m/s at 30°. What is the horizontal component of velocity?

Question 42: A force system whose lines of action lie in different planes is known as:

Question 43: A particle of mass 2 kg moves with velocity 5 m/s. What is its momentum?

Question 44: The angular acceleration of a rotating body is defined as:

Question 45: A body of mass 3 kg moving at 4 m/s has kinetic energy:

Question 46: The law of conservation of momentum states that:

Question 47: If a force of 100 N acts at an angle of 60° to the horizontal, the horizontal component is:

Question 48: The product of moment of inertia and angular velocity is called:

Question 49: For equilibrium of a body under three non-parallel forces, their lines of action must:

Question 50: A 20 kg body falls freely from rest. What is its velocity after 3 seconds? (g = 9.8 m/s²)

Question 51: A 5 m long simply supported beam carries a uniformly distributed load of 4 kN/m over the entire span. What is the maximum bending moment?

Question 52: A block weighing 200 N is placed on a rough plane inclined at 30°. If coefficient of friction is 0.4, the frictional force acting on the block is approximately:

Question 53: A thin circular ring of mass m and radius R rolls without slipping. Its kinetic energy is:

Question 54: The polar moment of inertia of a circular shaft of diameter d is:

Question 55: A particle moves with uniform angular velocity ω in a circle of radius r. The centripetal acceleration is:

Question 56: In a triangular truss, if one member carries zero force under loading conditions, that member is called:

Question 57: The time period of a simple pendulum of length L is given by:

Question 58: If a body is subjected to three coplanar concurrent forces and is in equilibrium, their vector sum must be:

Question 59: A body moving with velocity 8 m/s is subjected to a constant deceleration of 2 m/s². The distance traveled before stopping is:

Question 60: The instantaneous center of rotation for a rigid body in plane motion is the point which has:

Question 61: For a particle projected vertically upward with velocity 20 m/s, the maximum height reached is approximately (g = 9.8 m/s²):

Question 62: The work done by a force acting perpendicular to displacement is:

Question 63: The radius of gyration k is related to moment of inertia I and area A as:

Question 64: If the resultant of two forces P and Q acting at an angle θ is R, then R² equals:

Question 65: The angular momentum of a particle about a point is defined as:

Question 66: A 4 m simply supported beam carries a central point load of 8 kN. What is the maximum bending moment?

Question 67: A body of mass 10 kg moves in a circle of radius 2 m with speed 5 m/s. The centripetal force acting on the body is:

Question 68: In a perfect frame, the relationship between number of members (m) and joints (j) is:

Question 69: The velocity of a particle moving with uniform acceleration after time t is given by:

Question 70: A couple produces:

Question 71: The work done by a constant force is defined as:

Question 72: If the coefficient of friction between two surfaces is zero, the surfaces are called:

Question 73: The angular velocity of a rotating body is measured in:

Question 74: A projectile is launched with velocity 30 m/s at angle 45°. The range is proportional to:

Question 75: The center of gravity of a uniform circular disc lies:

Question 76: The impulse of a force equals the:

Question 77: The dimensional formula of work is:

Question 78: If the acceleration of a body is zero, the net force acting on it must be:

Question 79: The slope of displacement–time graph represents:

Question 80: A rigid body in equilibrium under three coplanar forces will have forces that:

Question 81: A block of weight 500 N rests on a rough horizontal surface with coefficient of friction 0.3. What is the minimum horizontal force required to start motion?

Question 82: A wheel of radius 0.5 m rotates at 120 rpm. The linear velocity at the rim is approximately:

Question 83: The moment of inertia of a solid circular disc about its centroidal axis perpendicular to its plane is:

Question 84: The time required for a body falling freely from rest to reach velocity 19.6 m/s is:

Question 85: A truss member subjected to pulling force is known as:

Question 86: The work done in stretching a spring by displacement x is:

Question 87: If the angular velocity of a body increases uniformly, the motion is called:

Question 88: The product of force and perpendicular distance from pivot is known as:

Question 89: If two equal forces act in opposite directions along the same line, the resultant force is:

Question 90: The center of mass of a uniform rod lies at:

Question 91: The unit of angular momentum in SI system is:

Question 92: A projectile reaches maximum height when:

Question 93: The energy possessed by a body due to its position is called:

Question 94: The ratio of shear stress to shear strain within elastic limit is:

Question 95: The motion of a body along a curved path is called:

Question 96: If power transmitted by a rotating shaft is P and torque is T, angular velocity ω equals:

Question 97: A body has kinetic energy 200 J and mass 4 kg. Its velocity is:

Question 98: The locus of instantaneous centers for a rigid body in plane motion forms:

Question 99: The resistance offered by a body against motion is called:

Question 100: The slope of velocity–time graph represents:

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Engineering Mechanics MCQ for Competitive Exams

Important Topics Covered in Engineering Mechanics MCQs

Engineering Mechanics MCQ Questions and Answers for Practice

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