PILE DRIVING EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Epoxy Grout - ANSWERS-A two (or more) part resin that,
when mixed, produces a high-strength bonding material.
Failure of a Pile Foundation - ANSWERS-The movement of
the pile foundation or any part thereof, either as vertical
settlement or laterally, to such an extent that objectionable
damage results to the structure supported by the
foundation.
Fixed Leads - ANSWERS-Pile driving leads attached to the
boom point of the crane, with or without a spotter. Can only
be moved fore or aft for batter pile.
Foot of a Pile - ANSWERS-The lower end of a driven pile; pile
tip.
,Frequency - ANSWERS-For vibratory drivers, the number of
vertical movements of the vibrator per minute, which is
equal to the number of revolutions of the rotating shafts per
minute
Friction Pile - ANSWERS-Pile driven until friction between
pile surface and soil are great enough to support loads
placed on them. Used when firm bearing is too deep to
provide support for an end bearing pile
Friction/End-Bearing Pile - ANSWERS-A pile that achieves
support from the combination of side friction developed
between the side surface of the pile and the soils through
which it is driven and end bearing
Gross Penetration - ANSWERS-The total downward
movement of the pile caused by the hammer blow before
rebound. Maximum movement during test loading.
Grout - ANSWERS-A mortar or paste, made from a mixture
of cement, sand, and water.
,Guides - ANSWERS-The parallel rails of the pile leads that
form a pathway for the pile hammer
Hammer Efficiency - ANSWERS-The ratio of kinetic energy of
the ram immediately prior to impact divided by the rated
energy
Hammer Speed - ANSWERS-The number of complete strokes
of a pile hammer achieved by the ram per minute.
Heave - ANSWERS-The uplifting of the soil surface between
or near driven piles, caused by the displacement of soil by
the pile volume.
Impact Velocity - ANSWERS-The velocity of the ram of a
hammer when it strikes the anvil.
Internal Vibrator - ANSWERS-Electric or gasoline-powered
device used to consolidate concrete by immersing the head
in freshly placed concrete. Flexible steel spring extending
from the motor to the head transmits vibrations to the
concrete.
, Jack Hammer - ANSWERS-Electric or pneumatic equipment
with pointed or flat cutting edge. Used to penetrate and
break up hard surfaces.
Jack Test - ANSWERS-A high capacity hydraulic jacking
system used to apply loads to a pile under test
Jacketed Pile - ANSWERS-Pile driven into the ground by
applying force between the top of the pile and a stable
object above.
Jacking - ANSWERS-Used extensively to install piles in the
underpinning of structures. The means of precisely
transferring load from another source (either dead weight
or a reaction platform) in the performance of a pile load
test.
Jetting - ANSWERS-The use of a water or air jet to facilitate
the placing or driving of a pile by means of hydraulic
displacement of parts of the soil. In some cases, a high-
pressure air jet may be used, either alone or with water.
Leads - ANSWERS-A structure of fabricated steel or wood in
which or on which a pile hammer travels up and down and
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+
Epoxy Grout - ANSWERS-A two (or more) part resin that,
when mixed, produces a high-strength bonding material.
Failure of a Pile Foundation - ANSWERS-The movement of
the pile foundation or any part thereof, either as vertical
settlement or laterally, to such an extent that objectionable
damage results to the structure supported by the
foundation.
Fixed Leads - ANSWERS-Pile driving leads attached to the
boom point of the crane, with or without a spotter. Can only
be moved fore or aft for batter pile.
Foot of a Pile - ANSWERS-The lower end of a driven pile; pile
tip.
,Frequency - ANSWERS-For vibratory drivers, the number of
vertical movements of the vibrator per minute, which is
equal to the number of revolutions of the rotating shafts per
minute
Friction Pile - ANSWERS-Pile driven until friction between
pile surface and soil are great enough to support loads
placed on them. Used when firm bearing is too deep to
provide support for an end bearing pile
Friction/End-Bearing Pile - ANSWERS-A pile that achieves
support from the combination of side friction developed
between the side surface of the pile and the soils through
which it is driven and end bearing
Gross Penetration - ANSWERS-The total downward
movement of the pile caused by the hammer blow before
rebound. Maximum movement during test loading.
Grout - ANSWERS-A mortar or paste, made from a mixture
of cement, sand, and water.
,Guides - ANSWERS-The parallel rails of the pile leads that
form a pathway for the pile hammer
Hammer Efficiency - ANSWERS-The ratio of kinetic energy of
the ram immediately prior to impact divided by the rated
energy
Hammer Speed - ANSWERS-The number of complete strokes
of a pile hammer achieved by the ram per minute.
Heave - ANSWERS-The uplifting of the soil surface between
or near driven piles, caused by the displacement of soil by
the pile volume.
Impact Velocity - ANSWERS-The velocity of the ram of a
hammer when it strikes the anvil.
Internal Vibrator - ANSWERS-Electric or gasoline-powered
device used to consolidate concrete by immersing the head
in freshly placed concrete. Flexible steel spring extending
from the motor to the head transmits vibrations to the
concrete.
, Jack Hammer - ANSWERS-Electric or pneumatic equipment
with pointed or flat cutting edge. Used to penetrate and
break up hard surfaces.
Jack Test - ANSWERS-A high capacity hydraulic jacking
system used to apply loads to a pile under test
Jacketed Pile - ANSWERS-Pile driven into the ground by
applying force between the top of the pile and a stable
object above.
Jacking - ANSWERS-Used extensively to install piles in the
underpinning of structures. The means of precisely
transferring load from another source (either dead weight
or a reaction platform) in the performance of a pile load
test.
Jetting - ANSWERS-The use of a water or air jet to facilitate
the placing or driving of a pile by means of hydraulic
displacement of parts of the soil. In some cases, a high-
pressure air jet may be used, either alone or with water.
Leads - ANSWERS-A structure of fabricated steel or wood in
which or on which a pile hammer travels up and down and
