Applied Mechanics And Graphic Statics MCQ Questions & Answers | Civil Engineering

A. If two equal and perfectly elastic smooth spheres impinge directly, they interchange their velocities

B. If a sphere impinges directly on an equal sphere which is at rest, then a fraction $$\frac{1}{2}\left( {1 - {{\text{e}}^2}} \right)$$   the original kinetic energy is lost by the impact

C. If a smooth sphere impinges on another sphere, which is at rest, the latter will move along the line of centres

D. If two equal spheres which are perfectly elastic impinge at right angles, their direction after impact will still be at right angles

E. All the above

A. Nature plays an important role in the launch of a satellite

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

C. The gravitational force relents as the satellite climbs higher

D. All the above

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

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 centre

A. Only (i)

B. Both (ii) and (iii)

C. Both (i) and (iii)

D. All are correct

A. 2.44 times more

B. 2.44 times less

C. 3 times less

D. 3 times more

A. To be zero

B. To be maximum

C. To be minimum

D. None of these

A. S = c tan ψ

B. y = c cosh $$\frac{{\text{x}}}{{\text{c}}}$$

C. y = c cosh ψ

D. y = c sinh ψ

A. y = c cosh $$\frac{{\text{x}}}{{\text{c}}}$$

B. y = c sinh $$\frac{{\text{x}}}{{\text{c}}}$$

C. y = c tan $$\frac{{\text{x}}}{{\text{c}}}$$

D. y = c sin $$\frac{{\text{x}}}{{\text{c}}}$$

A. 30°

B. 45°

C. 60°

D. 90°

A. (i) and (ii)

B. (i) and (iii)

C. Only (i)

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