Quiz về Sức bền vật liệu

What is the subject of study in the Strength of Materials?

• Liquid

• Gas

• Solid

• Both A and B

The hardness of a material is the ability to:

• Withstand cracking

• Not deform significantly under load

• Resist corrosion

• Resist oxidation

A bar-shaped detail is classified based on which characteristic?

• Length greater than the other two dimensions

• Round shape

• Hollow cross-section

• Weighs more than 5kg

The concentrated force has the unit:

• N/m

• N/m²

• N

• N·m

Stress is denoted by:

• P

• σ

• τ

• Q

When an object deforms elastically, after unloading, it will:

• Break

• Not recover

• Return to its original shape

• Exhibit permanent deformation

The reaction force in a hinge connection is equal to how many simple connections?

• 1

• 2

• 3

• 4

In a planar system, the number of equilibrium equations is:

• 2

• 3

• 4

• 6

Shear stress is denoted by:

• σ

• τ

• M

• N

The shear force diagram Qy is:

• A straight line when the load is uniformly distributed

• A parabola

• An arbitrary curve

• A circle