A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve ____________________?

Related Mcqs:

Which is the correct statement about law of polygon of forces ?

A. if any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium B. if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are … Which is the correct statement about law of polygon of forces ?Read More...

A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?

A. remain horizontal B. slant up towards direction of pull C. slant down towards direction of pull D. unpredictable E. none of the above...

The effort required to lift a load W on a screw jack with helix angle a and angle of friction <j) is equal to _________________?

A. Wtan(a + ) B. Wtan(a-) C. Wcos(a + ) D. Wsin(a + ) E. W (sin a + cos )....

According to law of triangle of forces __________________ ?

A. three forces acting at a point will be in equilibrium B. three forces acting at a point can be represented by a triangle, each side being proportional to force C. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will … According to law of triangle of forces __________________ ?Read More...

Pick up the incorrect statement from the following ?

A. The C.G. of a circle is at its center B. The C.G. of a triangle is at the intersection of its medians C. The C.G. of a rectangle is at the inter-section of its diagonals D. The C.G. of a semicircle is at a distance of r/2 from the center E. The C-G. of … Pick up the incorrect statement from the following ?Read More...