This set of Construction and Building Materials Multiple Choice Questions & Answers (MCQs) focuses on “Different Types of Pile”.
1. Identify the type of pile.
a) Raymond step taper concrete pile
b) Friction pile
c) Raymond Standard concrete pile
d) Mac Arthur pile
View Answer
Explanation: Raymond standard concrete pile consists of a thin corrugated shell closed at the bottom. The shell is driven into the ground with a collapsible Steel mandrel core in it. When the desired depth is reached, the mandrel is collapsed and withdrawn.
2. Identify the type of pile.
a) Raymond standard concrete pile
b) Raymond step taper concrete pile
c) Mac Arthur pile
d) Base driven pile
View Answer
Explanation: Raymond step taper concrete pile consists of Steel sections of suitable length. The bottom of the first shell to be driven is closed by a flat steel plate. The diameter of pile increases in steps at the rate of 25 mm for each successive shell section.
3. Identify the type of pile.
a) Mac Arthur pile
b) Base driven pile
c) Swage pile
d) Monotube pile
View Answer
Explanation: In Mac Arthur pile, a heavy steel casing with a core is driven into the ground as shown in given figure. When the desired depth is reached, the core is withdrawn and a corrugated steel shell is placed in the casing.
4. Identify the type of pile.
a) Base driven pile
b) Friction pile
c) Swage pile
d) Button bottom pile
View Answer
Explanation: Base driven pile consists of a helically welded shell of steel plate. A concrete plug is provided at the bottom of the shell and driving its done by allowing pile Hammer to fall on the concrete plug.
5. Identify the type of pile.
a) Swage pile
b) Base driven pile
c) Button bottom pile
d) Mac Arthur pile
View Answer
Explanation: In Swage pile, a precast concrete plug of slight conical shape provided at the bottom of a steel shell. These piles are used for hard soil or at places where it is desired to have a watertight shell before concrete is placed in the Shell.
6. Identify the type of pile.
a) Swage pile
b) Button bottom pile
c) Simple pile
d) Friction pile
View Answer
Explanation: In Button bottom pile, a concrete button is used at the bottom to provide an enlarged hole in the soil when the file is being driven.
7. Identify the type of pile.
a) Pressure pile
b) Pedestal pile
c) Vibro pile
d) Simplex pile
View Answer
Explanation: In Simplex pile, a Steel Tube fitted with cast iron shoe is driven into the ground up to required depth as shown in the above figure. The reinforcement, if necessary, is put up.
8. Identify the type of pile.
a) Simplex pile
b) Simplex Alligator pile
c) Franki pile
d) Vibro pile
View Answer
Explanation: In Simplex Alligator jaw pile, the cast iron shoe is provided by alligator jaw point. When concrete is poured, the jaw opens and allows concrete to flow. In this type of pile, the shoe does not remain in the ground.
9. Identify the type of pile.
a) Simplex pile
b) Franki pile
c) Pedestal pile
d) Pressure pile
View Answer
Explanation: In the Pedestal pile, a concrete pedestal can be seen at the bottom of the pile which is driven into the ground. The pressure is applied on the concrete through the core and at the same time, the case is withdrawn and hence the concrete is sprayed into the voids.
10. Identify the type of pile.
a) Under reamed pile
b) Pedestal pile
c) Simplex pile
d) Pressure pile
View Answer
Explanation: In Pressure pile, the compressed air is then admitted through the air Pipe and which is applied to raise the tube. Thus, the tube is lifted slightly and at the same time, the concrete is forced into the surrounding ground by compressed air.
11. Identify the type of pile.
a) Load bearing pile
b) Friction pile
c) Cast iron pile
d) Timber pile
View Answer
Explanation: Load bearing piles penetrate through the soft soil and their bottom rest on a hard bed. Thus, they are end bearing piles and act as a column or piers. The soft ground through which the piles pass also give some lateral support and thus increases the load carrying capacity of the bearing piles.
12. Identify the type of pile.
a) Load bearing piles
b) Sand pile
c) Friction pile
d) Steel pipe
View Answer
Explanation: When loose soil extends to a great depth, the piles are driven up to such a depth that the frictional resistance developed at the sides of the piles equals the load coming on the piles.
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