Caissons MCQs : Here you will find MCQ Questions related to "Caissons" in Construction & Building Materials. These Caissons MCQ Questions Will help you to improve your Construction & Building Materials knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations
A caisson foundation also called as ?
A. pile foundations
B. deep excavations
C. pier foundation
D. None of the above
Explanation: A caisson foundation also called as pier foundation is a watertight retaining structure used as a bridge pier, in the construction of a concrete dam, or for the repair of ships.
It is a prefabricated ________ sunk into the ground to some desired depth and then filled with concrete thus forming a foundation
Explanation: It is a prefabricated hollow box or cylinder sunk into the ground to some desired depth and then filled with concrete thus forming a foundation.
Caissons are drilled either to bedrock called?
A. sheeted caissons
B. excavated caissons
D. rock caissons
Explanation: Caissons are drilled either to bedrock called rock caissons
Which caissons are also known as floating docks and are prefabricated boxes that have cylindrical cavities?
Explanation: Floating caissons are also known as floating docks and are prefabricated boxes that have cylindrical cavities.
Which of the following are Advantages of Caissons?
A. Minimizes pile cap needs
B. Slightly less noise and reduced vibrations
C. Easily adaptable to varying site conditions
D. All of the above
Explanation: All of the above are Advantages of Caissons.
Lack of construction expertise disadvantages of caissons?
C. Can be true or false
D. Can not say
Explanation: True, Lack of construction expertise disadvantages of caissons.
A _________ is an embankment of some material.
Explanation: The materials commonly employed for the construction of dike are earth, rock and sand bags. The dike are generally employed for a short duration, particularly to enable the construction of a more durable cofferdam behind them
________ type of cofferdam is economical at places where rock is available in plenty.
A. Rock-fill cofferdam
B. Sand-bags dikes
C. Earth dikes
D. Single wall cofferdam
Explanation: Rock dikes or Rock-fill cofferdams can be used for a depth of water up to about 3 metres and a suitable even in case of Swift water. The only disadvantage of this type of cofferdam is that it is not impervious.
The _________ is suitable for caissons of Open Well type
C. Reinforced cement concrete
Explanation: New segments of cast iron are bolted as the caisson sinks. Cast iron is unsuitable for pneumatic caissons as there is risk of failures due to tension developed by the compressed air. The cost also works out to be more in relation to steel or RCC.
An open _______ is a convenient form of foundation for Bridge piers.
B. Multiple wells
Explanation: Cylinder is used when depth of water is more than 12 meters or when it becomes essential go deep to avoid exposure of foundations due to scouring action of flowing water. The cylinder is a light shell which invariably become part of the permanent structure.