Fundamentals of Engineering Basic 5

Question 1

What is the moment of inertia used to analyze?

Accepted Answer

Resistance to rotational acceleration

Answer

Moment of inertia (I) is the rotational analog of mass, measuring how difficult it is to change an object's rotational motion.

Question 2

A beam is in static equilibrium. Which two conditions must be satisfied?

Accepted Answer

ΣF = 0 and ΣM = 0

Answer

Static equilibrium requires that the sum of all forces and the sum of all moments about any point each equal zero.

Question 3

Which type of stress acts perpendicular to the cross-sectional area of a member?

Accepted Answer

Normal (axial) stress

Answer

Normal (axial) stress σ = F/A is the stress component acting perpendicular to the cross-sectional plane.

Question 4

Young's modulus (E) relates stress to:

Accepted Answer

Strain

Answer

Young's modulus is the ratio of normal stress to normal strain: E = σ/ε.

Question 5

Which programming construct allows a block of code to repeat until a condition is false?

Accepted Answer

Loop (while/for)

Answer

Loop structures (while, for, do-while) repeatedly execute a code block as long as the specified condition remains true.

Fundamentals of Engineering Practice Test