EIT Statics and Dynamics

Question 1

For a body in static equilibrium, the sum of all forces must equal:

Accepted Answer

Zero

Answer

Maximum force

Answer

Minimum force

Answer

Body weight

Question 2

The moment of a force about a point is calculated as:

Accepted Answer

Force × perpendicular distance from the point to the line of action

Answer

Force × distance along the force direction

Answer

Force / distance

Answer

Force² × distance

Question 3

What is the centroid location of a uniform rectangular plate with width w and height h?

Accepted Answer

At the center (w/2, h/2)

Answer

At the corner

Answer

At w/3 from one edge and h/3 from the bottom

Answer

At the top edge

Question 4

Newton's second law for a particle states:

Accepted Answer

F = ma

Answer

F = mv

Answer

F = m/a

Answer

F = v × a

Question 5

A 500N block rests on a horizontal surface with μ_s = 0.4. What is the maximum static friction force?

Accepted Answer

200 N

Answer

125 N

Answer

500 N

Answer

2000 N

Question 6

The principle of work-energy theorem states that net work done on a particle equals:

Accepted Answer

Change in kinetic energy

Answer

Change in potential energy

Answer

Total mechanical energy

Answer

Product of force and time