Engineering Mechanics Questions

• The mechanical advantage of a lifting machine is the ratio of
• A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body.
• The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
• Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
• The angle between two forces when the resultant is maximum and minimum respectively are
• 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
• The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
• If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
• The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
• The frequency of oscillation of a torsional pendulum is
• Which of the following statement is correct?
• The point, through which the whole weight of the body acts, irrespective of its position, is known as
• A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
• The maximum efficiency of a lifting machine is
• The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
• The angular velocity (in rad / s) of a body rotating at N revolutions per minute is
• The process of finding out the resultant force is called __________ of forces.
• In a framed structure, as shown in the below figure, the force in the member BC is
• The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
• The motion of a particle round a fixed axis is