Forces are called coplanar when all of them acting on body lie in | ENGINEERING MECHANICS
(a) one point (b) one plane (c) different planes (d) perpendicular planes (e) different points. Ans: b
ENGINEERING MECHANICS Questions and Answers
When trying to turn a key into a lock, following is applied | ENGINEERING MECHANICS
(a) coplanar force (b) non-coplanar forces (c) lever (d) moment (e) couple. Ans: e
When trying to turn a key into a lock, following is applied | ENGINEERING MECHANICS Read Post »
The product of either force of couple with the arm of the couple is called | ENGINEERING MECHANICS
(a) resultant couple (b) moment of the forces (c) resulting couple (d) moment of the couple (e) none of the
Which of the following do not have identical dimensions ? | ENGINEERING MECHANICS
(a) Momentum and impulse (b) Torque and energy (c) Torque and work (d) Kinetic energy and potential energy (e) Moment
Which of the following do not have identical dimensions ? | ENGINEERING MECHANICS Read Post »
If a rigid body is in equilibrium under the action of three forces, then | ENGINEERING MECHANICS
(a) these forces are equal (b) the lines of action of these forces meet in a point (c) the lines
In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
(a) two members with unknown forces of the frame (b) three members with unknown forces of the frame (c) four
Which is the correct statement about law of polygon of forces ? | ENGINEERING MECHANICS
(a) if any number of forces acting at a point can be represented by the sides of a polygon taken
Which is the correct statement about law of polygon of forces ? | ENGINEERING MECHANICS Read Post »
According to principle of transmissibility of forces, the effect of a force upon a body is | ENGINEERING MECHANICS
(a) maximum when it acts at the center of gravity of a body (b) different at different points in its
Center of gravity of a solid cone lies on the axis at the height | ENGINEERING MECHANICS
(a) one-fourth of the total height above base (b) one-third of the total height above base (c) one-half of the
Center of gravity of a solid cone lies on the axis at the height | ENGINEERING MECHANICS Read Post »
Effect of a force on a body depends upon | ENGINEERING MECHANICS
(a) magnitude (b) direction (c) position or line of action (d) all of the above (e) none of the above.
Effect of a force on a body depends upon | ENGINEERING MECHANICS Read Post »
Which of the following is a vector quantity | ENGINEERING MECHANICS
(a) energy (b) mass (c) momentum (d) angle (e) speed. Ans: c
Which of the following is a vector quantity | ENGINEERING MECHANICS Read Post »
Center of percussion is | ENGINEERING MECHANICS
(a) the point of C.G. (b) the point of metacentre (c) the point of application of the resultant of all
Center of percussion is | ENGINEERING MECHANICS Read Post »
If a number of forces act simultaneously on a particle, it is possible | ENGINEERING MECHANICS
(a) not a replace them by a single force (b) to replace them by a single force (c) to replace
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are
(a) 2 and V6 (b) 3 and 1 kg (c) V5andV5 (d) 2 and 5 (e) none of the above.
Center of gravity of a thin hollow cone lies on the axis at a height of | ENGINEERING MECHANICS
(a) one-fourth of the total height above base (b) one-third of the total height above base (c) one-half of the