Applied Mechanics and Graphic Statics MCQs

Question 1

The length of a Second's pendulum, is

Accepted Answer

99.4 cm

Answer

99.0 cm

Answer

100 cm

Answer

101 cm

Question 2

For a simple pendulum, the period of one oscillation is

Accepted Answer

$$2\pi \sqrt {\frac{l}{{	ext{g}}}} $$

Answer

$$2\pi \sqrt {\frac{l}{{2{	ext{g}}}}} $$

Answer

$$2\pi \sqrt {\frac{{2{	ext{g}}}}{l}} $$

Answer

$$2\pi \sqrt {\frac{{	ext{g}}}{{2l}}} $$

Question 3

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

Accepted Answer

Centroid

Answer

Straight line

Answer

Involute

Answer

Spiral

Question 4

The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is

Accepted Answer

Inertia

Answer

Weight

Answer

Mass

Answer

Momentum

Question 5

Engineer's units of force, is

Accepted Answer

Newton in absolute units

Answer

Dyne in absolute units

Answer

Newton and dyne in absolute units

Answer

All the above

Question 6

If y is force and x is velocity, then dimensions of $$\frac{{{{	ext{d}}^2}{	ext{y}}}}{{{	ext{d}}{{	ext{x}}^2}}}$$ are

Accepted Answer

M2L-2T-2

Answer

ML-1T-2

Answer

ML-1T0

Answer

M2L-2T-4

Question 7

The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

Accepted Answer

137.5 cm4

Answer

437.5 cm4

Answer

337.5 cm4

Answer

237.5 cm4

Question 8

For a simple pendulum, time period for a beat, is

Accepted Answer

$$\pi \sqrt {\frac{l}{{	ext{g}}}} $$

Answer

$$\pi \sqrt {\frac{{2l}}{{	ext{g}}}} $$

Answer

$$\pi \sqrt {\frac{{	ext{g}}}{{2l}}} $$

Answer

$$\pi \sqrt {\frac{l}{{2{	ext{g}}}}} $$

Question 9

Free body diagram is an

Accepted Answer

Isolated joint with all the forces, internal as well as external, acting on it

Answer

Isolated joint with only body forces acting on it

Answer

Isolated joint with internal forces acting on it

Answer

None of the above