NHI 2-WEEK BRIDGE INSPECTION
TRAINING EXAM #1 QUESTIONS WITH
CORRECT ANSWERS
\.Creep - ANSWERS-Gradual, continuing deformation due to constant
stress below yield strength.
\.Fatigue - ANSWERS-Tendency to fail at stress below yield stress when
subject to cyclical loading.
\.Rolled 'I' beam - ANSWERS-flanges and web 1 piece, <36" deep,
compact section (no stiffener needed).
\.Build-up I beam - ANSWERS-larger shape, welded=new bridges,
rivets=older bridges.
\.Physical Properties: Steel - ANSWERS-Resists impact & vibration, 0.1%-
2.1% carbon and various yield strength.
\.Mechanical Properties: Steel - ANSWERS-Isotropic=high comp. & tens.
strength, elastic, ductile; temperature, welding and fatigue prone
TRAINING EXAM #1 QUESTIONS WITH
CORRECT ANSWERS
\.Creep - ANSWERS-Gradual, continuing deformation due to constant
stress below yield strength.
\.Fatigue - ANSWERS-Tendency to fail at stress below yield stress when
subject to cyclical loading.
\.Rolled 'I' beam - ANSWERS-flanges and web 1 piece, <36" deep,
compact section (no stiffener needed).
\.Build-up I beam - ANSWERS-larger shape, welded=new bridges,
rivets=older bridges.
\.Physical Properties: Steel - ANSWERS-Resists impact & vibration, 0.1%-
2.1% carbon and various yield strength.
\.Mechanical Properties: Steel - ANSWERS-Isotropic=high comp. & tens.
strength, elastic, ductile; temperature, welding and fatigue prone
