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CM 2113 Wang Test 2 Prep 2025 Exams, Exams of Construction

CM 2113 Wang Test 2 Prep 2025 Exams

Typology: Exams

2024/2025

Available from 06/20/2025

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CM 2113 Wang Test 2 Prep 2025 Exams
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Three basic components
of soil
(T/F) For bulk materials,
volumetric mesure varies
with material's position in
the construction process
(T/F) The same weight of a
material will occupy differ-
ent volumes as the materi-
al is handled on the project
Swell
Which soil volume is
used to determine the vol-
ume capacity of excavat-
ing/hauling equipment?
Soil density is a measure
of ? per unit of volume.
What is soil's bank condi-
tion?
(T/F) 1 bank cubic yard is 1
cubic yard of material after
solids, water and air
T
T
Reduction in density due
to loosening the soil by dig-
ging
Loose Volume
Weight
Typical amount of soil in its
natural state
pf3
pf4
pf5

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Three basic components of soil (T/F) For bulk materials, volumetric mesure varies with material's position in the construction process

(T/F) The same weight of a material will occupy differ- ent volumes as the materi- al is handled on the project

Swell

Which soil volume is used to determine the vol- ume capacity of excavat- ing/hauling equipment?

Soil density is a measure of? per unit of volume. What is soil's bank condi- tion?

(T/F) 1 bank cubic yard is 1 cubic yard of material after

solids, water and air

T

T

Reduction in density due to loosening the soil by dig- ging

Loose Volume

Weight

Typical amount of soil in its natural state

What are construction costs based on?

Rolling Resistance

What does rolling resis- tance result from?

(T/F) rolling resistance ap- plied to both crawler-type and wheel-type mobile equipment

(T/F) When a vehicle moves down a grade the force of gravity that assists the vehicle is also called grade assistance

(total quantity of the work to be done)*(the unit price of the work) resistance of a level sur- face to constant-velocity motion across it friction of the driving mech- anism, tire flexing and the force needed to push through or ride over the supporting surface

T

T

it has been disturbed by a loading process

F

Loose Soil

Compact Soil

when excavated, a soil increases in due to loosened soil grains and void spaces filled with air

when a soil is , some of the air is forced out of the soil's void spaces

Total Resistance=

has been excavated or loaded, used to determine the volume capacity of the excavating and hauling equipment after comparison, used to determine the volume of any structure such as a damn or a fill

volume

compacted

grading resistance +rolling resistance

Moister content calcula- tion

(wet weight - dry weight) / dry weight Speed affects cycle time Cycle time drives production Production determines cost

Grade Resistance Factor= (20 lb/tn) * (%grade)

the ratio between the max- imum amount of pull a ma- Coefficient of traction

Usable Force

Typical soil Volume ChangeDuring Earthmov- ing?

the primary factors thatde- termine the power avail- able at the drive wheels

chine exerts before slip- page and the totalweight on the drivers (coefficient of traction) * (weight on powered run- ning gear) Bank 1. Loose 1. Compacted 0.

Engine horsepower and operating gear

Water Deficiency= (final %-initial %)(dry)(27)

Truckload Haul Example= [Vb*(1+%swell)]/truck load capacity