MCQs of Centroid (Mechanics Of Solids - 3130608)

Mechanics Of Solids (3130608) MCQs

MCQs of Centroid

Showing 1 to 9 out of 9 Questions

The centre of gravity of a triangle is at the point where three

(a)	medians of the triangle meet
(b)	perpendicular bisectors of the sides of the triangle meet
(c)	bisectors of the angle of the triangle meet
(d)	none of these

The locus of the instantaneous centre of a moving rigid body, is

(a)	straight line
(b)	involute
(c)	centroid
(d)	spiral

The c.g. of a thin hollow cone of height h, above its base lies on the axis, at a height of

(a)	h/3
(b)	h/4
(c)	2h/3
(d)	3h/4

The C.G. of a right circular cone lies on its axis of symmetry at a height of

(a)	h/2
(b)	h/3
(c)	h/4
(d)	h/5

The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is

(a)	$\frac{3 r}{π}$
(b)	$\frac{2 r}{3 π}$
(c)	$\frac{2 π}{r}$
(d)	$\frac{2 r}{π}$

The center of gravity of the trapezium as shown in below figure from the side is at a distance of

(a)	$\frac{h}{3} (\frac{b + 2 a}{a + b})$
(b)	$\frac{h}{3} (\frac{2 b + a}{a + b})$
(c)	$\frac{h}{2} (\frac{b + 2 a}{a + b})$
(d)	$\frac{h}{2} (\frac{2 b + a}{a + b})$

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 intersection of its diagonals
(d)	The C.G. of a semicircle is at a distance of r/2 from the center

From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the center of the circular plate is at a distance of

(a)	2.0 cm
(b)	1.5 cm
(c)	1.0 cm
(d)	0.5 cm

The center of gravity of a trapezoidal dam section whose top width is a, bottom width is b and the vertical side is a, from its vertical face is

(a)	$\frac{a^{2} + a b + b^{2}}{3 (a + b)}$
(b)	$\frac{b^{2} + c b + c^{2}}{3 (c + b)}$
(c)	$\frac{a^{2} + a c + c^{2}}{3 (a + c)}$
(d)	none of these

Showing 1 to 9 out of 9 Questions