Short Questions [Statics]
- State: law of transmissibility of force.
- State: Lami’s theorem.
- State: Parallelogram law of forces.
- What are the characteristics of a force.
- Explain the different types of forces system with neat sketch.
- Distinguish between ‘Composition’ and ‘Resolution’ of forces
- What is couple and moment of couple.
- Define coplanar concurrent force system.
- List the procedure for drawing a Free Body Diagram.
- State the conditions for the equilibrium of rigid bodies.
- State and prove Varignon’s theorem.
- Derive the equations of equilibrium for a system of non-concurrent forces in a plane.
- Explain how a force can be translated to a given point without affect`g its action on the body.
- Three forces F1,F2 and F3 are proportional to and act along the three sides AC,CB and BA of a triangle ABC.Prove that they reduce to a couple whose moment is proportional to the area of the triangle ABC.
- What is meant by “Static indeterminancy” ? Explain how it is determined for a structure.
- Enumerate the condition of the line of action of three forces in equilibrium.
- What is plane truss? What are the assumptions made in the analysis of plane trusses.?
- Write briefly about’method of joints’ and ‘method of sections’.
- When do you prefer method of section of method joints?
- Explain the method of constructing Maxwell’s diagram.
- Explain the difference between uniformly distributed load and uniformly varying load.
- State the parallel axis theorem.
- State and derive the relation for theorem of Pappus & Guldinus.
- Define centroid of a section.
- Derive an expression for the principal moments of Inertia.
- What are polar moment of inertia and product of inertia.
- State any four geometrical properties of sections.
- State the perpendicular axis theorem.
- Calculate the moment of inertia Ix of a homogeneous right circular cone with respect to an axis ‘X’ through the vertex and perpendicular to the plane of the base.
- Find the first moment area of a semicircle of radius R about its base.
- Distinguish between Static friction and Dynamic Friction.
- State the laws of friction.
- Define angle of repose.
- Write short notes on angle of friction.
- What are the advantages and disadvantages of frictional force..
- State Coulomb’s laws of static friction.
- Define rolling resistance.
- What are the principal axes and principle moments of inertia?
- State the direction of support reactions in the case of (a)simply supported and (b) hinged end and (c)Roller supported end.
- What is meant by efficiency of screw jack? Derive expression for maximum efficiency.
