Engineering Mechanics Questions

• The radius of gyration is the distance where the whole mass (or area) of a body is assumed to be concentrated.
• A framed structure, as shown in the below figure, is a
• The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by(where r = Amplitude of motion, and y = Displacement of the particle from mean position.)
• The static friction
• A couple produces
• The total energy possessed by a system of moving bodies
• In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
• When the spring of a watch is wound, it will possess
• The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.
• An irregular body may have more than one centre of gravity.
• The maximum height of a projectile on a horizontal plane, is
• In a screw jack, the effort required to lift the load is given by(where W = Load lifted, α = Helix angle, and φ = Angle of friction.)
• The resultant of the two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then
• Whenever a force acts on a body and the body undergoes a displacement, then
• Moment of inertia of a circular section about its diameter (d) is
• When a particle moves along a straight path, there will be centripetal acceleration as well as tangential acceleration.
• The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s2, is
• A framed structure is imperfect, if the number of members are __________ (2j - 3).
• A block ot mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will __________ with the increase in coefficient of friction.
• The rate of doing work is known as