Chapter 4 - AIC Exam Questions and
Verified Correct Answers
_____ are designed to stabilize the sides of open excavations by resisting the lateral pressure of
soil and water. answer - sheet pilings
____ interlock to one another along their vertical joints and are installed in a manner similar to
that used for other piles, often by a pile driver. answer - sheet pilings
____ are temporary enclosure primarily used to hold back water for activities requiring a dry
work area, and are commonly used in bridge construction. answer - cofferdams
_____ are the simplest method of constructing a cofferdam but are often limited in use because
of the large area required. Cofferdams are more commonly constructed using ____ with
structural bracing. A combination of both can also be used. answer - earthen embankments;
sheet piles
This type of cofferdam is constructed by driving sheet piles through water or mud and into
stable soil below, forming a watertight, boxlike, or circular structure. Once sheet piles are in
place, they are structurally braced, and the water is pumped out.
a. sheet piling cofferdams
b. earthen embankment cofferdams answer - a. sheet piling cofferdams
T or F; Pile foundations are intended for vertical loads answer - true
,a _____ bracing system is an external bracing system that uses metal rods or wires anchored
into rock or soil outside of an excavation to support the face of an excavation. answer - tieback
Which type of bracing system provides larger clear work areas with the excavation?
a. tieback bracing systems
b. internally braced systems answer - a. tieback bracing systems
___ is the process of removing ground or surface water so that construction activities can take
place answer - dewatering
Different types of pumps are using to dewater.
1. ___ pumps create a vacuum internally and are used for low-volume applications.
2. ___ pumps are commonly used for open water with high concentrations of debris and trash.
3. ___ pumps use hydraulics to power the pumps and are ideal when the pump can't be
physically placed near the water source. answer - 1. positive displacement
2. centrifugal
3. hydraulic submersible
where should the location of the filtering area be included? answer - the site logistics plan
an ___ is a piece of heavy construction equipment commonly used in the excavation of soils,
demolition, and material handling answer - excavator
excavators may be __ or ___ mounted and generally consist of an undercarriage, a housing, a
cab, a two-part articulated arm, and a bucket answer - track, wheel
most modern excavators are...
, a. hydraulically powered
b. cable operated answer - a. hydraulically powered
a ___ is a tractor-like piece of construction equipped with a front-mounted blade. they are
typically track mounted and commonly used in clearing and leveling a job site and in
pushing/spreading large quantities of materials answer - dozer
a ___ is a wheeled piece of equipment with a center-mounted angled blade. they are typically
used to finish grade answer - grader
___ may be wheel or track mounted and have a wide front-mounted bucket that can be raised,
lowered, and dumped. They are commonly used for landscaping, material handling, and loading
of stockpiled materials into trucks to be hauled. answer - loader
because of their smaller size, versatile use, and greater affordability, which loader is the most
widely used type of loader?
a. skid steer loader
b. wheel loader
c. track loader answer - a. skid steer loader
a ___ is a multipurpose piece of equipment designed to excavate, load, haul, and discharge soil.
They are commonly used to quickly excavate large areas. answer - scraper
a ___ is a tractor-like piece of equipment that consists of a two-part articulated arm and bucket
mounted to the back and a loader bucket equipped on the front answer - backhoe
Verified Correct Answers
_____ are designed to stabilize the sides of open excavations by resisting the lateral pressure of
soil and water. answer - sheet pilings
____ interlock to one another along their vertical joints and are installed in a manner similar to
that used for other piles, often by a pile driver. answer - sheet pilings
____ are temporary enclosure primarily used to hold back water for activities requiring a dry
work area, and are commonly used in bridge construction. answer - cofferdams
_____ are the simplest method of constructing a cofferdam but are often limited in use because
of the large area required. Cofferdams are more commonly constructed using ____ with
structural bracing. A combination of both can also be used. answer - earthen embankments;
sheet piles
This type of cofferdam is constructed by driving sheet piles through water or mud and into
stable soil below, forming a watertight, boxlike, or circular structure. Once sheet piles are in
place, they are structurally braced, and the water is pumped out.
a. sheet piling cofferdams
b. earthen embankment cofferdams answer - a. sheet piling cofferdams
T or F; Pile foundations are intended for vertical loads answer - true
,a _____ bracing system is an external bracing system that uses metal rods or wires anchored
into rock or soil outside of an excavation to support the face of an excavation. answer - tieback
Which type of bracing system provides larger clear work areas with the excavation?
a. tieback bracing systems
b. internally braced systems answer - a. tieback bracing systems
___ is the process of removing ground or surface water so that construction activities can take
place answer - dewatering
Different types of pumps are using to dewater.
1. ___ pumps create a vacuum internally and are used for low-volume applications.
2. ___ pumps are commonly used for open water with high concentrations of debris and trash.
3. ___ pumps use hydraulics to power the pumps and are ideal when the pump can't be
physically placed near the water source. answer - 1. positive displacement
2. centrifugal
3. hydraulic submersible
where should the location of the filtering area be included? answer - the site logistics plan
an ___ is a piece of heavy construction equipment commonly used in the excavation of soils,
demolition, and material handling answer - excavator
excavators may be __ or ___ mounted and generally consist of an undercarriage, a housing, a
cab, a two-part articulated arm, and a bucket answer - track, wheel
most modern excavators are...
, a. hydraulically powered
b. cable operated answer - a. hydraulically powered
a ___ is a tractor-like piece of construction equipped with a front-mounted blade. they are
typically track mounted and commonly used in clearing and leveling a job site and in
pushing/spreading large quantities of materials answer - dozer
a ___ is a wheeled piece of equipment with a center-mounted angled blade. they are typically
used to finish grade answer - grader
___ may be wheel or track mounted and have a wide front-mounted bucket that can be raised,
lowered, and dumped. They are commonly used for landscaping, material handling, and loading
of stockpiled materials into trucks to be hauled. answer - loader
because of their smaller size, versatile use, and greater affordability, which loader is the most
widely used type of loader?
a. skid steer loader
b. wheel loader
c. track loader answer - a. skid steer loader
a ___ is a multipurpose piece of equipment designed to excavate, load, haul, and discharge soil.
They are commonly used to quickly excavate large areas. answer - scraper
a ___ is a tractor-like piece of equipment that consists of a two-part articulated arm and bucket
mounted to the back and a loader bucket equipped on the front answer - backhoe
