Fundamentals of Engineering Statics and Dynamics

Question 1

For a body to be in static equilibrium, the sum of all forces and the sum of all moments must each equal:

Accepted Answer

Zero

Answer

A constant

Answer

The weight of the body

Answer

The reaction force

Question 2

A simply supported beam of length 10 m carries a 50 kN load at mid-span. What is each reaction force?

Accepted Answer

25 kN

Answer

50 kN

Answer

10 kN

Answer

5 kN

Question 3

The moment of a force about a point equals:

Accepted Answer

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

Answer

Force times the length of the beam

Answer

Force divided by distance

Answer

Force times angle

Question 4

What is the formula for Newton's second law in dynamics?

Accepted Answer

ΣF = ma

Answer

ΣF = mv

Answer

ΣF = m/a

Answer

ΣF = mv²

Question 5

What is the centroid location (ȳ) of a rectangle with height h measured from its base?

Accepted Answer

h/2

Answer

h/3

Answer

h/4

Answer

2h/3

Question 6

Which theorem relates the moment of inertia about an axis through the centroid to that about a parallel axis?

Accepted Answer

Parallel axis theorem

Answer

Perpendicular axis theorem

Answer

Green's theorem

Answer

Varignon's theorem