PILES AND CAISSON EXAM QUESTIONS

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PILES AND CAISSON EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -32 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: Box Caisson

Answer:

watertight box made of timber and concrete having a bottom but no top

Question 2: Bearing Pile

Answer:

used in foundation construction and carries superimposed loads

Question 3: Uncased Pile

Answer:

CEMENT ; driving a concrete plug into the ground along with a steel casing and then ramming concrete into place as the casing is withdrawn

Question 4: Guide Pile

Answer:

used in cofferdam construction to support horizontal wall that in turn supports vertical sheet piling

Question 5: Pier

Answer:

a cast-in place concrete foundation formed by boring with a large auger or excavating by hand a shaft in the earth to a suitable bearing and filling the shaft w concrete

Question 6: Precast Concrete Pile

Answer:

has a round, square or polygonal cross section and sometimes an open core; often prestressed

Question 7: Pile Cap

Answer:

footing-like member that joins the heads of a cluster of piles to distribute the load from a column or grade beam among the piles

Question 8: Lagging

Answer:

refers to heavy timber planks joined together side-byside to retain the face of an excavation

Question 9: Cofferdam

Answer:

temporary enclosure in a river, lake, etc. to keep water from the enclosed area prior to construction

Question 10: Steam Pile Hammer

Answer:

type of pile driver that is automatically raised and dropped a short distance

Question 11: Rock Caisson

Answer:

socketed caisson having a steel H-section core within a concrete-filled pipe casing

Question 12: Double Acting Steam

Answer:

more compact compared to single acting steam hammer

Question 13: Soldier Pile

Answer:

H-section steel pipe driven vertically into the ground to support horizontal lagging

Question 14: Pipe Pile

Answer:

heavy steel pipe driven with the lower end either open or closed by a heavy steel plate and filled w concrete

Question 15: Drop Hammer

Answer:

type of pile driver that is raised by means of a rope and then allowed to be dropped (height of hammer not more than 6 meters)

Question 16: Batter Pile

Answer:

driven at an inclination to resist forces that are not vertical

Question 17: Timber Pile

Answer:

log driven usually as a friction pile fitted with a steel shoes

Question 18: End bearing Pile (Point-bearing Pile)

Answer:

pile depending principally on the bearing resistance of soil or rock beneath its foot for support

Question 19: Friction Pile

Answer:

a pile that depends on the frictional resistance of surrounding earth for support

Question 20: Socketed Caisson

Answer:

caisson that is drilled into a stratum of solid rock rather than belled

Question 21: Sheet Pile

Answer:

PREVENT WATER ; used to resist lateral pressure of the earth to form a wall that is intended to be watertight; *prevent water from seeping into an excavation

Question 22: H-Pile

Answer:

steel H-section sometimes encased in concrete to a point below the water table to prevent corrosion

Question 23: Pile Exccentricity

Answer:

deviation of the pile from its plan location which results in a reduction of its allowable load

Question 24: Cased Pile

Answer:

CEMENT + STEEL ;constructed by driving a steel pipe or casting into the ground until it meets the required resistance and filling it with concrete;

Question 25: Single Acting Steam Hammer

Answer:

steam is applied to raise the striking part of the hammer then allowed to fall by gravity

Question 26: Pile

Answer:

a long slender column of wood, steel, or reinforced concrete hammered vertically into the earth to form part of a foundation system

Question 27: Caisson

Answer:

a pier when the boring is 620 mm or larger in diameter that permits inspection of the bottom

Question 28: Open Caisson

Answer:

a self-contained box structure made of timber, metal, and concrete

Question 29: Pile Driver

Answer:

machine for driving piles