Applied Mechanics and Graphic Statics MCQs

Question 1

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Nature plays an important role in the launch of a satellite

Answer

The earth's gravity reduces the speed of a satellite by 32 km per second

Answer

The gravitational force relents as the satellite climbs higher

Question 2

Pick up the incorrect statement from the following:

Accepted Answer

The C.G. of a semicircle is at a distance of r/2 from the centre

Answer

The C.G. of a circle is at its centre

Answer

The C.G. of a triangle is at the intersection of its medians

Answer

The C.G. of a rectangle is at the intersection of its diagonals

Question 3

The time period of a simple pendulum depends on (i) Mass of suspended particle (ii) Length of the pendulum (iii) Acceleration due to gravity

Accepted Answer

Both (ii) and (iii)

Answer

Only (i)

Answer

Both (i) and (iii)

Answer

All are correct

Question 4

The frequency of oscillation on moon as compared to that on earth, will be

Accepted Answer

2.44 times less

Answer

2.44 times more

Answer

3 times less

Answer

3 times more

Question 5

The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane

Accepted Answer

To be maximum

Answer

To be zero

Answer

To be minimum

Answer

None of these

Question 6

The intrinsic equation of catenary is

Accepted Answer

S = c tan ψ

Answer

y = c cosh $$\frac{{	ext{x}}}{{	ext{c}}}$$

Answer

y = c cosh ψ

Answer

y = c sinh ψ

Question 7

Cartesian form of the equation of catenary is

Accepted Answer

y = c cosh $$\frac{{	ext{x}}}{{	ext{c}}}$$

Answer

y = c sinh $$\frac{{	ext{x}}}{{	ext{c}}}$$

Answer

y = c tan $$\frac{{	ext{x}}}{{	ext{c}}}$$

Answer

y = c sin $$\frac{{	ext{x}}}{{	ext{c}}}$$

Question 8

The instantaneous centre of a member lies at the point of intersection of two lines drawn at the ends of the member such that the lines are inclined to the direction of motion of the ends at

Accepted Answer

90°

Answer

30°

Answer

45°

Answer

60°

Question 9

If two forces are in equilibrium, then the forces must (i) Be equal in magnitude (ii) Be opposite in sense (iii) Act along the same line

Accepted Answer

All (i), (ii) and (iii)

Answer

(i) and (ii)

Answer

(i) and (iii)

Answer

Only (i)