HIHI

A mass hangs on two parallel springs. The individual spring stiffness are K1 and K2. What is the total composite spring constant?

• (K1 x K2) / (K1 +K2)
• 1/K1 + 1/K2
• K1 + K2
• K1 x K2

Determine the spring constant for the system of springs in series.

• (K1 x K2) / (K1 +K2)
• 1/K1 + 1/K2
• K1 + K2
• K1 x K2

Identify the state of stress in a material described as follows: Stress at failure

• Proportional limit
• Yield strength
• Ultimate strength
• Rupture strength

Highest ordinate in stress strain diagram

• Proportional limit
• Yield strength
• Ultimate strength
• Rupture strength

An appreciable elongation or yielding of the material without any corresponding increase of load

• Proportional limit
• Yield strength
• Ultimate strength
• Rupture strength

What do you call the retarding force acting opposite a body in motion

• Inertia
• Dynamic
• Static friction
• Kinetic friction

It is the displacement of one level relative to the level above or below

• Fatigue
• Torsional Shear Stress
• Story drift
• Creep

Occurs when the center of mass and rigidity do not coincide

• Fatigue
• Torsional shear stress
• Story drift
• Creep

If the structure is subjected to a cycle of stresses and ______, it causes the beam to have sudden ultimate structure

• Fatigue
• Torsional shear stress
• Story drift
• Creep

It is measured by the richter scale

• Ground acceleration
• Intensity of observed effects
• Magnitude of earthquake
• Resonance