NHI 130055 Midterm (Modules 1.0 - 5.2)
Questions and Answers
Question 1
Shear Force
Correct Answer
Results from equal but opposite transverse forces which tend to slide one section of
a member past the adjacent section
Question 2
Superficial Fungi Types
Correct Answer
Molds
Stains
Soft Rot
Question 3
Chloride Contamination
Correct Answer
Exposure to chlorides from deicing salts and seawater, which can cause accelerated
reinforcement corrosion, leading to cracking, delamination, or spalling
Question 4
Appraisal
Correct Answer
An evaluation of a bridge in comparison to CURRENT STANDARDS
Page 1 of 32
,Question 5
Wear
Correct Answer
The gradual removal of surface mortar due to friction
Question 6
FRP Physical Inspection
Correct Answer
Traditional Tap
Electronic Tap
Question 7
Special Tools
Correct Answer
Survey Equipment
Nondestructive Evaluation Equipment
Underwater Inspection Equipment
Other Special Equipment
Question 8
Concrete Deck
Correct Answer
Most common
CIP (removable and SIP forms)
Precast reinforced
Panels are cast and cured offsite
Both use mild reinforcement
Question 9
P/S Combination
Correct Answer
Combo of Pretensioned and Post-tensioned, used when prestressing forces cannot
be safely applied alone w/out crushing the member
Page 2 of 32
,Question 10
Function of Culverts
Correct Answer
transmit the flow of water from one side of roadway to the other (hydraulic
structures that are typically underfill)
Question 11
Structurally Deficient
Correct Answer
Significant load carrying elements are found to be in poor or worse condition due
to deterioration and/or damage, or the adequacy of the waterway opening
provided by the bridge is determined to be extremely insufficient to the point of
causing intolerable traffic interruptions
Question 12
Function of Deck
Correct Answer
Supports live load
Question 13
Corrugated Steel Deck
Correct Answer
Filled and overlaid w/ bituminous (asphalt) concrete or gravel (no rebars). Useful
due to light weight and ease of installation
Question 14
Fungi Growth Requirements
Correct Answer
Air (>20%)
Temp (75-85 F)
Food
Moisture (>20%)
Page 3 of 32
, Question 15
3 Levels of Responsibility
Correct Answer
1. Employer
2. Team Leader
3. Inspector
Question 16
Mechanical Properties of Timber
Correct Answer
Orthotropic
Non-homogeneous
Strength
Resistance: Fire, Fatigue, Impact
Creep Susceptibility
Question 17
Inventory
Correct Answer
Items which pertain to a bridge's PERMANENT characteristics
Question 18
Functionally Obsolete
Correct Answer
Deck geometry, load carrying capacity, clearance, or approach roadway alignment
that no longer meets the criteria for the system of which the bridge is a part
Question 19
Creep
Correct Answer
Gradual, continuing irreversible deformation due to constant stress level below yield
strength
Page 4 of 32
Questions and Answers
Question 1
Shear Force
Correct Answer
Results from equal but opposite transverse forces which tend to slide one section of
a member past the adjacent section
Question 2
Superficial Fungi Types
Correct Answer
Molds
Stains
Soft Rot
Question 3
Chloride Contamination
Correct Answer
Exposure to chlorides from deicing salts and seawater, which can cause accelerated
reinforcement corrosion, leading to cracking, delamination, or spalling
Question 4
Appraisal
Correct Answer
An evaluation of a bridge in comparison to CURRENT STANDARDS
Page 1 of 32
,Question 5
Wear
Correct Answer
The gradual removal of surface mortar due to friction
Question 6
FRP Physical Inspection
Correct Answer
Traditional Tap
Electronic Tap
Question 7
Special Tools
Correct Answer
Survey Equipment
Nondestructive Evaluation Equipment
Underwater Inspection Equipment
Other Special Equipment
Question 8
Concrete Deck
Correct Answer
Most common
CIP (removable and SIP forms)
Precast reinforced
Panels are cast and cured offsite
Both use mild reinforcement
Question 9
P/S Combination
Correct Answer
Combo of Pretensioned and Post-tensioned, used when prestressing forces cannot
be safely applied alone w/out crushing the member
Page 2 of 32
,Question 10
Function of Culverts
Correct Answer
transmit the flow of water from one side of roadway to the other (hydraulic
structures that are typically underfill)
Question 11
Structurally Deficient
Correct Answer
Significant load carrying elements are found to be in poor or worse condition due
to deterioration and/or damage, or the adequacy of the waterway opening
provided by the bridge is determined to be extremely insufficient to the point of
causing intolerable traffic interruptions
Question 12
Function of Deck
Correct Answer
Supports live load
Question 13
Corrugated Steel Deck
Correct Answer
Filled and overlaid w/ bituminous (asphalt) concrete or gravel (no rebars). Useful
due to light weight and ease of installation
Question 14
Fungi Growth Requirements
Correct Answer
Air (>20%)
Temp (75-85 F)
Food
Moisture (>20%)
Page 3 of 32
, Question 15
3 Levels of Responsibility
Correct Answer
1. Employer
2. Team Leader
3. Inspector
Question 16
Mechanical Properties of Timber
Correct Answer
Orthotropic
Non-homogeneous
Strength
Resistance: Fire, Fatigue, Impact
Creep Susceptibility
Question 17
Inventory
Correct Answer
Items which pertain to a bridge's PERMANENT characteristics
Question 18
Functionally Obsolete
Correct Answer
Deck geometry, load carrying capacity, clearance, or approach roadway alignment
that no longer meets the criteria for the system of which the bridge is a part
Question 19
Creep
Correct Answer
Gradual, continuing irreversible deformation due to constant stress level below yield
strength
Page 4 of 32
