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WorksheetsDAY 35 WORKSHEET LSGD (Bridge Engineering)
Total questions: 15
Worksheet time: 9mins
For a river with high scour depth and need for deep, stable foundation, the most suitable foundation is —
Pile foundation
Open caisson
Pneumatic caisson
Box caisson
A skew bridge is mainly avoided because —
It is difficult to cast bearings
Skew causes complex load transfer on substructure
Wing walls cannot be supported
Deck joints fail early
For very long spans (>300 m) with navigational clearance and dynamic live loads, the most suitable bridge type is —
Arch bridge
PSC box girder
Suspension bridge
Through slab bridge
Afflux is most critically considered in —
Selection of deck material
Determination of bridge foundation diameter
Fixing superstructure type
Deciding minimum freeboard
Which IRC loading is most suited for defence & heavy tracked vehicles on national importance bridges?
Class A
Class B
Class 70R
Class AA
“Integral bridges eliminate expansion joints but require detailed thermal stress calculations in design.”
True
False
“In a through type bridge, the deck slab is above the truss or arch system.”
True
False
Assertion (A): Caissons are preferred over pile foundations for major river bridges. Reason (R): Because caissons act both as permanent foundation and as working enclosure during sinking.
Both A and R are true and R is correct explanation
Both A and R are true, but R not explanation
A true, R false
A false, R true
Rise in upstream water level due to obstruction of bridge is called (a) .
The vertical space between HFL and underside of deck soffit is termed (a) .
For rocky gorge sites where compression behaviour dominates, the best bridge form is (a) .
Floating (pontoon) bridges are mainly used for (a) or temporary military access.
The net hydraulic opening after deducting pier width is called (a) .
Match
A. Abutment --------------3. Intermediate vertical support
B. Pier ----------------4. Guides traffic onto bridge
C. Wing wall1 ------------------. Transfers load to deep soil layer
D. Foundation --------------2. Retains approach embankment
A → 3, B → 2, C → 4, D → 1
A → 2, B → 3, C → 4, D → 1
A → 2, B → 4, C → 3, D → 1
A → 2, B → 3, C → 1, D → 4
MATCH THE FOLLOWING
A. Freeboard ------------3. Rise of water level due to obstruction
B. Afflux --------------- 4. Net opening after deducting pier width
C. Effective waterway -----------------------1. Extra height above HFL for safety
D. Scour ------------------2. Settlement of structure
A → 3, B → 1, C → 4, D → 2
A → 1, B → 4, C → 3, D → 2
A → 1, B → 3, C → 4, D → 2
A → 1, B → 3, C → 2, D → 4
