Past Boards Objective Questions Flashcards
1
Q
- A mass hangs on two PARALLEL springs. The individual spring stiffness are K; and K; What is the total composite spring constant ?
A
K1 + K2
2
Q
- Determine the spring constant for the system of springs in series
A
Product over Sum:
K1K2/(K1 + K2)
3
Q
- Identify the state of stress in a material described as follows: Stress at Failure
A
Rupture Strength
4
Q
- Highest Ordinate in Stress-Strain diagram
A
Ultimate Strength
5
Q
- An Appreciable elongation or yielding of the material without any corresponding increase of load.
A
Yielding Strength
6
Q
- What do you call the retarding force acting opposite a body in motion
A
Kinetic Friction
7
Q
- It is the displacement of one level relative to the level above or below
A
Story Drift
8
Q
- Occurs when the center of mass and rigidity do not coincide
A
Torsional Shear Stress
9
Q
- If the structure is subjected to a cycle of stresses and ____, it causes the beam to have sudden ultimate structure
A
Fatigue
10
Q
- It is measured by the Richter scale
A
Magnitude of an Earthquake
11
Q
- it is measured by a Seismometer
A
Actual Displacement
12
Q
- besides the epicenter, it describes the location of the Earthquake
A
Focal depth
13
Q
- Identify the material property described by the following material : The composite material exhibits elastic
properties in one direction different from that in the perpendicular direction.
A
Orthotropic
14
Q
- Identify the material property described by the following material : The material has the same composition at every point but the elastic may not be the same in all directions.
A
Homogenous
15
Q
- Liquefaction is best described as:
A
A sudden drop in the ‘shear strength’ of soil
16
Q
- Which refers to the rigidity of a structure ?
A
Reciprocal of Deflection
17
Q
- Identify the following : It is the point through which the resultant of the resistance to the applied lateral force acts.
A
Center of Rigidity
18
Q
- Identify the following : It is the point through which the applied Seismic Force acts
A
Center of Mass
19
Q
- Identify the following : It refers to Flexibility of a Structure
A
Reciprocal of Stiffness
20
Q
- One in which the lateral stiffness is less than 70% of the stiffness of the story above is called:
A
Soft Story
21
Q
- A lateral displacement of one level relative of the level above or below is called:
A
Story Drift
22
Q
- Identify the following : It is the point through which the resultant of the resistance to the applied force acts
A
Center of Rigidity
23
Q
- Identify the following : It is the distance between the center of rigidity and center of mass
A
Eccentricity
24
Q
- Which material property is referred to by the following : The material has the ability to absorb energy in the Plastic Range
A
Toughness
25
Q
- Which material property is referred to by the following : The material has the ability to absorb energy in the Elastic Range
A
Resilience
26
Q
- Which material property is referred to by the following : The material has the ability to defuse the Plastic Range without Breaking
A
Ductility
27
Q
- Identify the Property of the material described by the following : The material deforms considerably even with a slight increase in stress
A
Yielding
28
Q
- identify the Property of the material described by the following : The material regains its original dimensions When the load is removed.
A
Elasticity
29
Q
- Identify the Property of the material described by the following : The material deforms in the Plastic range without breaking.
A
Ductility
30
Q
- Which of the following refers to the flexibility of a structure ?
A. Composite Stiffness
B. Rigidity
C. inverse Stiffness
D. static Deflection
A
Inverse of Stiffness
31
Q
- Which material property is described by the following : The composite material exhibits elastic properties in one direction Different from that in the perpendicular direction.
A
Orthotropic
32
Q
- Which material property is described by the following : The matenal has the same composition at every point But the elastic properties may not be the same In all direction.
A
Homogenous
33
Q
- Which material property is described by the following : The material has the same elastic properties in all directions.
A
isotropic
34
Q
- Which material has the same compression at any point ?
A
Homogeneous
35
Q
- What is the term which refers to the ability of a material to deform in the plastic range without breaking ?
A
Ductility
36
Q
- What do you call the ability of a material to absorb energy in the plastic range ?
A
Toughness
37
Q
- Which of the following terms is described herein ? Stressing high strength steel wires before concrete hardens.
A
Pre-Tensioning
38
Q
- Which of the following terms is described herein ? Stressing high strength steel after the concrete has been cast and has attained sufficient strength.
A
Post-Tensioning
39
Q
- Which of the following terms is described herein ? Loss of stress that takes place with the passage of time as concrete is held at a constant strain.
A
Relaxation
40
Q
- Which structural member has the ratio of its unsupported height to its least lateral dimension of not less than 3 and is used primarily to support Axial Load ?
A
Column
41
Q
- What do you call the force which determines whether the body will be in equilibrium or will have a varying state of motion.
A
Resultant
42
Q
- Identify the principle used in equations related to the deformation of axially loaded materials : That the
stress is proportional to the strain within the Elastic Region.
A
Hooke’s Law
43
Q
- Identify the principle used in equations related to the deformation of axially loaded materials : That in the deformation of axially loaded members, the ratio of the lateral to the longitudinal strain is constant.
A
Poisson’s Ratio
44
Q
- Identify the principle used in equations related to the deformation of axially loaded materials : That within
the elastic range, it is the constant of proportionality that defines the linear relationship between stress and strain.
A
Young’s Modulus
45
Q
- Which term refers to the force generated by a body at rest ?
A
Static
46
Q
- Which terms refers to the force generated by a body in motion ?
A
Dynamic
47
Q
- What is the term for the value beyond which the stress is no longer proportional to the strain.
A
Proportional Limit
48
Q
- Which property of a material enables it to under large permanent strains before failure
A
Ductility
49
Q
It occurs when a building period coincides with the earthquake period.
A
resonance
50
Q
when a material has to support a load for a long period of time, what causes it to continue to deform until a sudden fracture occurs?
A
Creep
