CE Review Course Final Exam – AM

Welcome to your CE Review Course Final Exam - AM

CE-1     How much backfill soil is required to fill a 6 ft deep x 8 feet wide x 2500 foot long trench? The soil swell is 25% and the shrinkage is 12%.

CE-2     Given the following pieces of equipment, which one provides the lowest cost benefit? Assume the annual interest rate is 3.75%.

CE-3     Which of the following is not a required Activity constraint to assemble a CPM Project Plan:

CE-4     In the CPM Schedule shown, which path is the Critical Path?

CE-5     What load must a 400 sqft temporary structure support for the following:

  • Dead load = 75 psf
  • Construction dead load = 32 psf
  • Variable material load = 12 psf
  • Personnel and equipment load = 27 psf

CE-6     A construction method that utilizes insulated concrete formwork is known as:

CE-7     A steel beam is required to temporarily support a construction process. The beam will need to span 12 feet and carry a load of 1200 lbs/ft. The maximum allowable deflection is ¼”. What size W shape should be used? Neglect the weight of the beam.

CE-8     Calculate the total earth pressure force on a 6 foot high retaining wall using the Rankine method. The total unit weight of the soil is 123 pcf. The soil friction value is 31°.

CE-9     The settlement due to primary consolidation of a spread footing is measured to be 2.71”. The footing is installed on a 15 feet deep unconsolidated soil layer. Consolidation tests reveal that the void ratio (e0) is 0.52. What is the change in void ratio (Δe)?

CE-10    If the groundwater level is 3 feet below ground, what is the Effective Stress at a point 10 feet below ground. The soil density is 135 lbs/ft3 and water density is 62.4 lbs/ft3.

CE-11    Calculate the size (area) of a square column footing to support a load of 250 kips. The footing is to be located on soft limestone (bearing capacity SBC = 24ksf – 30ksf; use 24ksf). Neglect the weight of the footing.

CE-12    A 24” x 24” concrete footing is installed in a 21 ft deep normally consolidated clay layer. The pressure distribution ratio under the footing is 2:1. The clay layer has a density (ɣ) of 123 lbs/ft3, a compression index (Cc) of 0.24, and an initial void ratio (e0) of 0.68. What is the distributed load area at the midpoint of the clay layer?

CE-13    Calculate the Critical Height of a 6 ft deep trench dug into soil with a cohesion of 121 lbs/ft2, a soil unit weight of 120 lbs/ft3, and a stability number = 4.33.

CE-14    Which of the following would not be considered a dead load?

CE-15    In the truss shown, what is the force in BD?

CE-16    For the 20 ft beam shown with one end fixed and the other end supported with a concentrated load of 50kips at the center, what is the deflection at the point of the load? E = 29,000,000psi and I = 103 in4.

CE-17    What is the smallest and lightest size A36 W shape that could be used for a beam spanning 20ft with a uniformly distributed load of 370 lbs/ft? Maximum deflection allowed = 0.20 in.

CE-18    A 10 foot long column located outdoors and supporting a portion of a roof experiences temperature fluctuations from 20°F to 75°F regularly. If the base of the column is secured to a concrete footing (i.e. fixed), how much will the column change in length during these temperature changes?

CE-19    A footing supporting a column is subject to what type of shear stress?

CE-20    A steel beam fixed at one end and supported at the other is subjected to a uniform load of 20kips/ft. What is the maximum shear and where does it occur?

CE-21    Hydraulic jump occurs when a flow of _________ velocity discharges into a zone of __________ velocity.

CE-22    A 70 ft x 70 ft flat roof with a wall on one side extending 15 ft above the roof surface would require what size horizontal storm drainage pipe if the rainfall rate is 3 inches per hour?

CE-23    Which of the following is a type of stormwater drain inlet:

CE-24    Hydrographs are used to:

CE-25    Detention ponds and Retention ponds are structures built specifically for excess rainwater. A Retention pond is designed to __________ excess rainwater.

CE-26    Using the Darcy-Weisbach equation, calculate the head loss in a 10 ft section of 3” pipe. The Moody friction factor is 0.075, the density of the fluid is 1 lb/ft3, and the velocity of the fluid is 4 ft/sec.

CE-27    Water flows thru a 2” diameter pipe at 5 fps before the pipe increases in size to a 4” diameter. Assuming laminar flow, what is the new velocity of the water in the 4” diameter pipe?

CE-28    What is the tangent length for the following horizontal curve: Central angle of the curve (Δ) = 38° and the Curve radius = 107 ft

CE-29    The 2 types of sight distance are __________ and __________.

CE-30    Superelevation is a design feature of __________.

CE-31    In the USDA Soil Classification System, which of the following is not a subgroup:

CE-32    What is the Total Stress at the point shown? Z1 = 10 ft, Z2 = 2 ft, Zw = 4ft Water density = 62.4 pcf.

CE-33    Hardness is defined as the measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied. Since the behavior of solid materials under force is complex, there are different measurements of hardness. Which measurement of hardness measures the resistance of a sample to material deformation due to a constant compression load from a sharp object?

CE-34    Which of the following has the lowest yield strength:

CE-35    In the AASHTO Soil Classification system, soils containing less than 50% fines are classified as:

CE-36    The Modified Proctor test uses a 1/30 ft3 mold and a _____ pound hammer dropped _____ times from _____ inches.

CE-37    Calculate the total net cut for the following using the Prismoidal Method:

CE-38    In surveying, one mile equals _____ rods.

CE-39    Sediment control is the process that traps soil particles after they have been detached and moved by rain, flowing water, or wind. Which of the following is a method of sediment control:

CE-40    OSHA’s 10 most frequent construction site hazards are scaffolding, fall protection (scope, application, definitions), excavations (general requirements), ladders, head protection, excavations (requirements for protective systems), hazard communication, fall protection (training requirements), construction (general safety and health provisions), and electrical (wiring methods, design and protection). Approximately _____ fatalities occur each year due to scaffolding accidents.

Sample Exam – AM

You will receive the solutions link after completing and submitting both the morning and afternoon sessions of the exam.

CE-1     Project Planning/Quantity Take-Off Methods
In performing a quantity take-off estimate for a construction project, which of the following information resources is/are used in the estimate:
I.   Construction plans
II.  Specifications
III. Square foot data
IV. Material and labor costs

CE-2     Means and Methods/Construction Loads
A hoist used to transfer building materials to the roof of a project will remain on the roof after construction as part of a window washing system. The weight of the hoist should be calculated as a _________.

CE-3     Means and Methods/Temporary Structures and Facilities
An 8” x 8” post is used temporarily to support a concrete slab weighing 2,500 lbs. Ignoring the weight of the post, what is the compression load transferred to the temporary footing?

CE-4     Soil Mechanics/Soil Consolidation
When soils decrease in volume due to the application of a force (such as a new building foundation), this is known as Consolidation The applied force causes the soil particles to pack together tightly and therefore reduce in volume. Water that is saturated in soil will be squeezed out when the pressure is applied. Which of the following soil types will water take the longest to be squeezed out?

CE-5     Soil Mechanics/Slope Stability
Slope stability is the resistance of __________ surfaces to failure by sliding or collapsing.

CE-6     Structural Mechanics/Dead and Live Loads
A 6 x 6 wood beam with E = 1,500,000 psi and I = 76.255 in4 is subjected to a uniform snow load of 21 lbs/ft on a simple span of 15 feet. What is the maximum deflection?

CE-7     Structural Mechanics/Columns
In calculating slenderness ratio, what is the radius of gyration of a 6” x 6” concrete column?

CE-8     Hydraulics and Hydrology/Stormwater Collection and Drainage
What is the average velocity in an open channel with a Gauckler–Manning coefficient of 1.3, a hydraulic radius of 5.5 ft, and a linear hydraulic head loss of 12 ft.

CE-9     Hydraulics and Hydrology/Energy and/or Continuity Equation
A 100’ long steel pipe (α = 6.33 x 10-6 in/in-°F) is observed changing length by 0.79”. What ∆T did the pipe experience?

CE-10    Materials/Concrete
A test performed using an Abrams Cone is called a __________ test.

Be sure to click Submit Quiz to see your results!

CE Crash Course 03

Welcome to your CE Crash Course 03

CE Crash Course 02

Welcome to your CE Crash Course 02

Crash Course 01

1. Mark your answers on the answer sheet below. Submit Quiz to see your results and receive a PDF of the solutions.
Name Email

CE 1.001     Project Planning/Quantity Take-Off Methods:
In performing a quantity take-off estimate for a construction project, which of the following information resources is/are used in the estimate:
I. Construction plans
II. Specifications
III. Square foot data
IV. Material and labor costs

CE 1.002     Project Planning/Quantity Take-Off Methods:
Which of the 4 approaches to estimating construction projects is most accurate?

CE 1.003     Project Planning/Quantity Take-Off Methods:
How many standard bricks (8” x 2-1/4” x 3-5/8”) are required to cover a wall 10 ft high x 60 ft long? There are no openings in the wall. Mortar joints are to be 0.5”.

CE 1.004     Project Planning/Quantity Take-Off Methods:
How many board feet is a 12ft long 2 x 8?

CE 1.005     Project Planning/Quantity Take-Off Methods:
How many board feet of 2 x 4 lumber would be required to frame a 8’ x 8’ wall? The studs are at 16” centers and the wall requires a double bottom plate and a double top plate.

CE 1.006     Project Planning/Cost Estimating:
A three-story apartment building built in Austin, Texas in 1981 cost $3,250,000. What would that same apartment building have cost to build in 1998 if the historical cost indexes are 70 for 1981 and 115.1 for 1998.

CE 1.007     Project Planning/Cost Estimating:
In performing engineering economic analysis, to compare alternatives you can either minimize costs or maximize benefits. In the previous example, the Equivalent Uniform Annual Cost (EUAC) was used to determine the best alternative based on costs. What is the Equivalent Uniform Annual Benefit (EUAB) of a piece of equipment that costs $12,000, has a useful life of 10 years, no salvage value, and provides cost savings in the first year of $1,700 but declines $250 per year for the remaining useful life (i.e. year 2 savings = $1,450, year 3 savings = $1,200, etc.)? Interest Rate (i) = 5%.

CE 1.008     Project Planning/Cost Estimating: 
Using Equivalent Uniform Annual Benefit (EUAB) analysis, what is the EUAB of the following: cost = $253,000, useful life = 25 years, cost savings = $15,500 in the first year but declines $645 per year for the remaining useful life. Interest Rate (i) = 4.0%.

CE 1.009     Project Planning/Cost Estimating:
An existing 100 hp water pump can be upgraded at a cost of $9,000 and the annual maintenance costs will be $2,500. Or the owner can purchase a new, high-efficiency, 75 hp pump for $30,000 with annual maintenance costs of $1,000 to replace the existing pump. If the pumps both run 24 hours a day, 365 days a year and utility costs are $0.12/kwh, which pump costs less (including maintenance) and what is the savings based on 1 year’s operation?

CE 1.010     Project Planning/Cost Estimating:
What would the same apartment building from question CE 1.006 have cost to build in 1963? The historical cost index for 1963 is 20.7.

CE 1.011     Project Planning/Project Schedules:
A subcontractor initiates changes to the work prior to receiving the official change order directing the changes to be made. By starting the work prematurely, the subcontractor inadvertently impacts the overall schedule which causes losses in revenue to the owner due to the inability to lease space on time. What is the best action to avoid this type situation?

CE 1.012     Project Planning/Project Schedules:
In a project’s CPM schedule, the following 5 items make up the critical path: (1) 4 days, (2) 2 days, (3) 10 days, (4) 21 days, and (5) 7 days. If a defined path has the following 3 items – (a) 4 days, (b) 14 days, and (c) 7 days – to be completed by the completion date, what is the total float?

CE 1.013     Project Planning/Project Schedules:
AIA Document G710™–1992 Architectural Supplemental Instructions is to be used by the architect to issue additional instructions or interpretations to the construction documents. Which of the following can be impacted by the Architectural Supplemental Instructions (ASI)?

CE 1.014     Project Planning/Project Schedules:
Coordination during design is the most efficient method of avoiding system conflicts before actual construction. Once the structure is erected to a point where system installation can begin, what is usually the best order (i.e. first, second, third, etc.) of installation?

CE 1.015     Project Planning/Project Schedules:
What is the expected duration of an activity with the following estimates:
• Optimistic completion time (a) = 7 days
• Most Likely completion time (b) = 10 days
• Pessimistic completion time (c) = 14 days

CE 1.016     Project Planning/Project Schedules:
In Critical Path Method – CPM – scheduling, the concept of float is valuable because it allows for scheduling flexibility. Which of the following is not a type of float in CPM scheduling?

CE 1.017     Project Planning/Project Schedules:
A portion of the amount requested in a Contractor’s monthly pay request is generally held by the fiduciary party (i.e. owner, construction manager) as a precaution to ensure the work is completely satisfactorily and that the contractors make return trips to the project after completion to satisfy warranties and guarantees. What is this “hold” referred to as?

CE 1.018     Project Planning/Activity Identification and Sequencing:
When assembling a CPM – Critical Path Method – model, which of the following is not a necessary variable?

CE 1.019     Project Planning/Activity Identification and Sequencing:
The first step in assembling a CPM project plan is to define the __________ including duration, start date, finish date, predecessors, etc.

CE 1.020     Project Planning/Activity Identification and Sequencing:
The critical path for the CPM diagram is A-B-C-E-G-I-J for a total of 26 days. What is the float in path A-B-D-F-H-G-I-J?

CE 1.021     Project Planning/Activity Identification and Sequencing:
Resource leveling is the process of adjusting __________ in an attempt to balance the demand for resources with the available supply of resources.

CE 1.022     Project Planning/Activity Identification and Sequencing:
Through project leveling, a project’s completion date could be delayed if the tasks affected fall on the critical path. In the CPM Schedule shown, which path is the Critical Path?

CE 1.023     Project Planning/Activity Identification and Sequencing:
Time-Cost Trade-Off is a technique for making cost and schedule trade-offs to obtain the greatest amount of time compression for the least incremental cost increase. This process reduces the duration of critical path activities by allocating more resources or by changing the scope of the activity. Another name for Time-Cost Trade-Off is:

CE 1.024     Project Planning/Activity Identification and Sequencing:
Accelerating the activities in a schedule by adding additional equipment, more people, or more hours is known as a __________.

CE 1.025     Means and Methods/Construction Loads:
A piece of equipment used to erect a building must be placed midway on a beam. The beam will be designed to carry this construction load and then remain after construction to support a floor. If the beam is 20 feet long and allowed to deflect ¼” maximum, what size W shape should be used? The equipment weighs 25,000 lbs. Neglect the weight of the beam.

CE 1.026     Means and Methods/Construction Loads:
A hoist used to transfer building materials to the roof of a project will remain on the roof after construction as part of a window washing system. The weight of the hoist should be calculated as a _________.

CE 1.027     Means and Methods/Construction Loads:
The exterior bearing walls of a building classified Type IA must have a _____ hour fire-resistance rating.

CE 1.028     Means and Methods/Construction Loads:
In an effort to mitigate the results of progressive structural collapse, the International Code Council has adopted several changes to enhance the protective nature of the code. One change requires increasing the fire-resistance rating by one-hour for structural components and assemblies in buildings _____ feet and higher.

CE 1.029     Means and Methods/Construction Loads:
The wind load on an exterior wall shall not cause a deflection of more than _____ inches in the structural members in the wall. Assume the wall is finished with flexible finishes (i.e. siding, gypsum board.) L = length of structural member.

CE 1.030     Means and Methods/Construction Methods:
The 3rd floor of an office building has elevation 28’-0”. The floor-to-floor dimension is 14’-0”. The structure is 6” concrete slab on 14” bar joist. A 10” uninsulated duct, 6” high recessed fluorescent lights and 2 – 3” water lines are routed in the ceiling plenum. What is the maximum ceiling height that can be achieved?

CE 1.031     Means and Methods/Construction Methods:
Which of the following IBC Construction Types is also referred to as Heavy Timber Construction or HT Construction?

CE 1.032     Means and Methods/Construction Methods:
A 15ft temporary beam is required to support a piece of equipment used in the construction of a building. The equipment weighs 32,000 lbs. and can be mounted anywhere along the beam. If the maximum amount of deflection is to be limited to 0.25 inches, what’s the smallest W-Shape beam to be used? E = 29,000,000 psi.

CE 1.033     Means and Methods/Construction Methods:
Determine the elevation at the bottom of the ditch shown.

CE 1.034     Means and Methods/Construction Methods:
AIA document A201–2007, General Conditions of the Contract for Construction contains a section for Concealed or Unknown Conditions. This section outlines what steps the contractor must take if actual site conditions are materially different than those found in the Contract Documents. The contractor must provide notice to the Owner and Architect no later than _________ after first observing the condition.

CE 1.035     Means and Methods/Temporary Structures and Facilities:
The temporary structure built to mold concrete to the desired size and shape, and controls its position and alignment is called __________.

CE 1.036     Means and Methods/Temporary Structures and Facilities:
An 8” x 8” post is used temporarily to support a concrete slab weighing 2,500 lbs. Ignoring the weight of the post, what is the compression load transferred to the temporary footing?

CE 1.037     Means and Methods/Temporary Structures and Facilities:
Forms placed for a concrete retaining wall are 48” high. Assuming the concrete pour will fill the forms to a point 3” below the top, what is the lateral pressure 6” above the bottom of the forms?

CE 1.038     Means and Methods/Temporary Structures and Facilities:
Shuttering is a type of formwork that uses __________ to form the concrete mold.

CE 1.039     Means and Methods/Temporary Structures and Facilities:
A temporary support will have ¼” angles bolted to a beam. The load on the connection is 36 kips and single shear is the main concern. What size and how many A307 bolts will be required per connection?

CE 1.040     Soil Mechanics/Lateral Earth Pressure:
Using the Rankine method, find the total earth pressure force on a 10 foot high retaining wall. The total unit weight of the soil is 105 pcf and has a friction value of 29 degrees.

CE 1.041     Soil Mechanics/Lateral Earth Pressure:
A 4 ft. x 4 ft. x 12 in. thick reinforced concrete footing is supporting an 18 in. x 18 in. column. The column is loaded with a dead load (D) of 125 kips and a live load (L) of 100 kips. What is the design soil pressure for this footing?

CE 1.042     Soil Mechanics/Lateral Earth Pressure:
The foundation wall shown is to be shored before collapse. If the load on the foundation wall shown is 3 kips and the wall is 16 feet tall, what is the moment at the base of the wall to be resisted?

CE 1.043     Soil Mechanics/Lateral Earth Pressure:
For the given wall, what is the load on member BC due to the 250 kip load imposed by settling of the surrounding earth berm?

CE 1.044     Soil Mechanics/Lateral Earth Pressure:
The coefficient of lateral earth pressure is:

CE 1.045     Soil Mechanics/Lateral Earth Pressure:
Which of the following is not a lateral earth pressure state:

CE 1.046     Soil Mechanics/Lateral Earth Pressure:
The three major parts of a retaining wall are:
I. Toe
II. Heel
III. Stem
IV. Base

CE 1.047     Soil Mechanics/Lateral Earth Pressure:
What is the primary purpose for the toe portion of a retaining wall?

CE 1.048     Soil Mechanics/Lateral Earth Pressure:
Calculate the passive earth pressure coefficient for soil with an angle of internal friction (φ) of 26°.

CE 1.049     Soil Mechanics/Soil Consolidation:
When soils decrease in volume due to the application of a force (such as a new building foundation), this is known as Consolidation The applied force causes the soil particles to pack together tightly and therefore reduce in volume. Water that is saturated in soil will be squeezed out when the pressure is applied. Which of the following soil types will water take the longest to be squeezed out?

CE 1.050     Soil Mechanics/Soil Consolidation:
The pressure exerted on the soil directly beneath a 3 ft x 3 ft mat footing that supports a column load of 25 kips is:

CE 1.051     Soil Mechanics/Soil Consolidation:
Calculate the void ratio (e) for a soil sample with a moisture content (w) of 15%. Unit weight of the solids = 155 lb/ft3 and the density of water = 62.4 lb/ft3. Assume the degree of saturation = 1.0.

CE 1.052     Soil Mechanics/Soil Consolidation:
Calculate the porosity (n) for the soil sample in question CE 1.051.

CE 1.053         Soil Mechanics/Soil Consolidation:
A soil sample with a unit weight of 118 lb/ft3 has a 12% moisture content and a solids unit weight of 147 lb/ft3. Calculate the dry unit weight of the sample.

CE 1.054     Soil Mechanics/Soil Consolidation:
Calculate the porosity for the soil sample in question CE 1.053.

CE 1.055     Soil Mechanics/Soil Consolidation:
A 2 in. thick consolidated clay sample has a void ratio (e) of 0.88 at the end of a consolidation test using a 30 psi load and a void ratio of 0.73 using a 50 psi load. The sample drained on both sides and reached a 50% consolidation in 10 min. Calculate the compression index (Cc) for the clay sample.

CE 1.056     Soil Mechanics/Soil Consolidation:
A construction site has a 10 ft thick layer of clay with similar properties to the consolidated clay sample in question CE 1.055. If the field clay is also drainable on both sides, calculate the expected primary consolidation.

CE 1.057     Soil Mechanics/Soil Consolidation:
Calculate the time required for the field clay (question CE 1.056) to reach a total settlement of 3 in.

CE 1.058     Soil Mechanics/Effective and Total Stresses:
Determine the total vertical stress at a point 6 feet below ground if the groundwater level is 24” below ground. Soil density = 125 lbs/ft3 and water density = 62.4 lbs/ft3.

CE 1.059     Soil Mechanics/Effective and Total Stresses:
A soil sample reveals a soil density of 125 lbs/ft3. What is the vertical stress at a point 4 ft below the surface?

CE 1.060     Soil Mechanics/Effective and Total Stresses:
Referring to question CE 1.059, what is the Pore Pressure at the point 4 feet below the surface if the groundwater level is 2 feet below ground. Assume the water density is 62.4 lbs/cubic foot.

CE 1.061     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress at the 4 foot below the surface point for the soil in question CE 1.062.

CE 1.062     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress at Point A. Assume water density = 62.4 lb/ft3.

CE 1.063     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress at Point B (refer to question CE 1.062). Assume water density = 62.4 lb/ft3.

CE 1.064     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress at Point C (refer to question CE 1.062). Assume water density = 62.4 lb/ft3.

CE 1.065     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress at Point D (refer to question CE 1.062). Assume water density = 62.4 lb/ft3.

CE 1.066     Soil Mechanics/Effective and Total Stresses:
Calculate the Effective Vertical Stress in a partially saturated soil 5 feet below the surface. The soil density of 125 lbs/ft3. The pore air pressure is 2 psi and the water density = 62.4 lb/ft3.

CE 1.067     Soil Mechanics/Bearing Capacity:
Calculate the end Bearing Capacity of an 18” round pile is driven 23 ft to refusal in soil with a unit weight of 125 lb/ft3. The Bearing Capacity factor for the pile is 230.

CE 1.068     Soil Mechanics/Bearing Capacity:
What size A36 steel base plate would be required for a W14 x 90 column supporting a load of 300 kips? The column/base plate is supported on a concrete footing with a concrete design strength, fc, of 3 ksi.

CE 1.069     Soil Mechanics/Bearing Capacity:
An 18” round bearing pile is to be driven to refusal in solid sandstone (bearing capacity = 50 ksf.) What is the bearing capacity of the pile?

CE 1.070     Soil Mechanics/Bearing Capacity:
Determine the footing size (length x width) required to support a 10in x 10in column with a total load of 75 kips. The maximum permissible soil bearing capacity = 2,300 psf. The top of the footing is 24” below grade and the unit weight of the soil is 110 lb/ft3. Do not consider the weight of the footing.

CE 1.071     Soil Mechanics/Bearing Capacity:
Calculate the size (area) of a square column footing to support a load of 250 kips. The footing is to be located on soft limestone (bearing capacity SBC = 24ksf – 30ksf; use 24ksf). Neglect the weight of the footing.

CE 1.072     Soil Mechanics/Bearing Capacity:
A soil test conducted in a lab that uses a 5½ weight dropped 20 times from a height of 12 inches is known as a __________ Test.

CE 1.073     Soil Mechanics/Bearing Capacity:
Who is known as the “father of soil mechanics?”

CE 1.074     Soil Mechanics/Bearing Capacity:
Determine the allowable bearing capacity for a 24” square footing in 115 lb/ft3 sandy clay soil with a cohesion of 250 lb/ft2, a friction angle of 25 degrees. Assume a safety factor of 3. The footing is located 48” below ground level.

CE 1.075     Soil Mechanics/Foundation Settlement:
The primary roof drain on a 21ft x 37ft flat roof in an area that frequently experiences 3 in. per hour rainfalls is blocked. The secondary roof drain is located 2.5 inches above the primary roof drain. If the roof is supported by 4 columns (one at each corner of the roof), what potential load could each column experience? Neglect any insulation slope and assume the rainwater weighs 8.34 pounds per gallon and that the load will be equally distributed.

CE 1.076     Soil Mechanics/Foundation Settlement:
How deep must a 24” diameter pile be driven in soil with a unit weight of 140 pcf to achieve an end Bearing Capacity of 1500 kips? The pile Bearing Capacity factor is 245.

CE 1.077     Soil Mechanics/Foundation Settlement:
Which of the following is a type of drilled shaft foundation?

CE 1.078     Soil Mechanics/Foundation Settlement:
A round bearing pile is needed to support a load of 205 kips.  The pile will be driven to refusal in sandstone (bearing capacity = 62 ksf.) What size pile will be required?

CE 1.079     Soil Mechanics/Foundation Settlement:
A column subjected to a live load of 150 kips and a dead load of 220 kips is supported on a concrete footing. One of the shear reactions that must be accounted for is punching shear. What is the force to be used in calculating the punching shear?

CE 1.080     Soil Mechanics/Foundation Settlement:
Which of the following is not a type of shallow foundation footing?

CE 1.081     Soil Mechanics/Foundation Settlement:
For shallow foundations, the minimum width of footings shall be ______ inches.

CE 1.082     Soil Mechanics/Foundation Settlement:
A footing designed to resist a moment in addition to an axial column load is called a:

CE 1.083     Soil Mechanics/Slope Stability:
Slope Stability is the resistance of __________ surfaces to failure by sliding or collapsing.

CE 1.084     Soil Mechanics/Slope Stability:
A trench is to be excavated for the installation of large pipes. If the soil cohesion is 250 psf, the stability number is 5.03, and the soil unit weight is 125 pcf, what depth can the trench be excavated before bracing will be required?

CE 1.085     Soil Mechanics/Slope Stability:
The soil in the slope shown has a unit weight (g) of 120 lb/ft3 , soil cohesion (c) of 900 lb/ft2, and an angle of internal friction (f) of 27°. Calculate the factor of safety for the slope.

CE 1.086     Soil Mechanics/Slope Stability:
Calculate the factor of safety for the embankment shown:

CE 1.087     Soil Mechanics/Slope Stability:
Which slope stability analysis tool makes the assumption that the friction angle of the soil is equal to zero?

CE 1.088     Soil Mechanics/Slope Stability:
The common stable slope ratio for most in-place soils is __________ (horizontal:vertical)

CE 1.089     Soil Mechanics/Slope Stability:
Slope failures, or landslides, typically occur where:
   I. a slope is over-steep
   II. fill material is not compacted
   III. cuts in natural soils encounter groundwater or zones of weak material

CE 1.090     Soil Mechanics/Slope Stability:
Rock walls used as retaining walls for slope stabilization typically have a base that is _____ x the height of the wall.

Submit Quiz to see your results and receive a PDF of the solutions.

Practice Exam – AM

Mark your answers to PE Practice Exam – AM and submit to receive credit and a PDF of the solutions. (You will receive the PDF after submitting PE Practice Exam – PM)

PE-1     Calculate the additional backfill required (in loose cubic yards) to fill a 3 ft x 5ft x 100 ft trench with soil having a 22% soil swell and a 9% shrinkage.

PE-2     Given the following pieces of equipment, which one provides the lowest cost benefit? Assume the annual interest rate is 3.75%.

PE-3     Which of the following is not a required Activity constraint to assemble a CPM Project Plan:

PE-4     In the CPM Schedule shown, which path is the Critical Path?

PE-5     What load must a 400 sqft temporary structure support for the following:

  • Dead load = 75 psf
  • Construction dead load = 32 psf
  • Variable material load = 12 psf
  • Personnel and equipment load = 27 psf

PE-6     A construction method that utilizes insulated concrete formwork is known as:

PE-7     A steel beam is required to temporarily support a construction process. The beam will need to span 12 feet and carry a load of 1200 lbs/ft. The maximum allowable deflection is ¼”. What size W shape should be used? Neglect the weight of the beam.

PE-8     Calculate the total earth pressure force on a 6 foot high retaining wall using the Rankine method. The total unit weight of the soil is 123 pcf. The soil friction value is 31°.

PE-9     The settlement due to primary consolidation of a spread footing is measured to be 2.71”. The footing is installed on a 15 feet deep unconsolidated soil layer. Consolidation tests reveal that the void ratio (e0) is 0.52. What is the change in void ratio (Δe)?

PE-10    If the groundwater level is 3 feet below ground, what is the Effective Stress at a point 10 feet below ground. The soil density is 135 lbs/cuft and water density is 62.4 lbs/cuft.

PE-11    Calculate the size (area) of a square column footing to support a load of 250 kips. The footing is to be located on soft limestone (bearing capacity SBC = 24 ksf – 30 ksf; use 24 ksf). Neglect the weight of the footing.

PE-12    A 24” x 24” concrete footing is installed in a 21 ft deep normally consolidated clay layer. The pressure distribution ratio under the footing is 2:1. The clay layer has a density (ɣ) of 123 lbs/cuft, a compression index (Cc) of 0.24, and an initial void ratio (e0) of 0.68. What is the distributed load area at the midpoint of the clay layer?

PE-13    Calculate the Critical Height of a 6 ft deep trench dug into soil with a cohesion of 121 lbs/sqft, a soil unit weight of 120 lbs/cuft, and a stability number = 4.33.

PE-14    Which of the following would not be considered a dead load?

PE-15    In the truss shown, what is the force in BD?

PE-16    For the 20 ft beam shown with one end fixed and the other end supported with a concentrated load of 50 kips at the center, what is the deflection at the point of the load? E = 29,000,000 psi and I = 103 in4.

PE-17    What is the smallest and lightest size A36 W shape that could be used for a beam spanning 20ft with a uniformly distributed load of 370 lbs./ft? Maximum deflection allowed = 0.20 in.

PE-18    A 10 foot long column located outdoors and supporting a portion of a roof experiences temperature fluctuations from 20°F to 75°F regularly. If the base of the column is secured to a concrete footing (i.e. fixed), how much will the column change in length during these temperature changes?

PE-19    A footing supporting a column is subject to what type of shear stress?

PE-20    A steel beam fixed at one end and supported at the other is subjected to a uniform load of 20 kips/ft. What is the maximum shear and where does it occur?

PE-21    Hydraulic jump occurs when a flow of _________ velocity discharges into a zone of __________ velocity.

PE-22    A 70 ft x 70 ft flat roof with a wall on one side extending 15 ft above the roof surface would require what size horizontal storm drainage pipe if the rainfall rate is 3 inches per hour?

PE-23    Which of the following is a type of stormwater drain inlet:

PE-24    Hydrographs are used to:

PE-25    Detention ponds and Retention ponds are structures built specifically for excess rainwater. A Retention pond is designed to __________ excess rainwater.

PE-26    Using the Darcy-Weisbach equation, calculate the head loss in a 10 ft section of 3” pipe. The Moody friction factor is 0.075, the density of the fluid is 1 lb/cuft, and the velocity of the fluid is 4 ft/sec.

PE-27    Water flows thru a 2” diameter pipe at 5 fps before the pipe increases in size to a 4” diameter. Assuming laminar flow, what is the new velocity of the water in the 4” diameter pipe?

PE-28    What is the tangent length for the following horizontal curve: Central angle of the curve (Δ) = 38° and the Curve radius = 107 ft

PE-29    The 2 types of sight distance are __________ and __________.

PE-30    Superelevation is a design feature of __________.

PE-31    In the USDA Soil Classification System, which of the following is not a subgroup:

PE-32    What is the Total Stress at the point shown? Z1 = 10 ft, Z2 = 2 ft, Zw = 4 ft. Water density = 62.4 pcf.

PE-33    Hardness is defined as the measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied. Since the behavior of solid materials under force is complex, there are different measurements of hardness. Which measurement of hardness measures the resistance of a sample to material deformation due to a constant compression load from a sharp object?

PE-34    Which of the following has the lowest yield strength:

PE-35    In the AASHTO Soil Classification system, soils containing less than 50% fines are classified as:

PE-36    The Modified Proctor test uses a 1/30 cuft mold and a _____ pound hammer dropped _____ times from _____ inches.

PE-37    Calculate the total net cut for the following using the Prismoidal Method:

PE-38    In surveying, one mile equals _____ rods.

PE-39    Sediment control is the process that traps soil particles after they have been detached and moved by rain, flowing water, or wind. Which of the following is a method of sediment control:

PE-40    OSHA’s 10 most frequent construction site hazards are scaffolding, fall protection (scope, application, definitions), excavations (general requirements), ladders, head protection, excavations (requirements for protective systems), hazard communication, fall protection (training requirements), construction (general safety and health provisions), and electrical (wiring methods, design and protection). Approximately _____ fatalities occur each year due to scaffolding accidents.

Be sure to click Submit Quiz to see your results!

CE Section Quiz 08

1. An excavation has Station 1+00 = 100 ft2 and Station 2+20 = 550 ft2. Calculate the total net cut.

2. An additional station (midway between the 2 stations in question 1) has an area = 350 ft2. Calculate the total net cut.

3. One end of an excavation is at station 1+55 and has a cross-sectional area of 1,345 ft2. The opposite end is at station 0+00 and has a cross-sectional area of 0 ft2. What is the total net cut for this site?

4. Calculate the number of acres in a quarter section.

5. One pole (when measuring length) is equal to:

CE Section Quiz 07

1. In the AASHTO Soil Classification System is based on _____ soil groups.

2. Which of the soil classification systems recognizes approximately 1,000 soil subgroups within the United States?

3. In ACI mix design (ACI 211.1), the water/cement ratio theory states that for a given combination of materials and as long as workable consistency is obtained, the __________of concrete at a given age depends on the w/c ratio.

4. In ACI mix design (ACI 211.1), which of the following is not one of the common steps:

5. Calculate the shear modulus (G) for a 1” diameter steel bar subjected to a 1500 lbs axial, tension force. The original length of the bar is 36” and the deformation is 0.02”.

CE Section Quiz 06

1. Referring to the sketch above, if the Angle of Intersection = 37° and the Radius = 281 ft, determine the length of the Subtangent.

2. What is the External Distance (E)?

3. The Radius of a basic circular curve is 450 ft. The Point of Curvature (PC) is at Station 0 + 500. Calculate the Length of Curve from PC to Point A (at station 0 + 593).

4. A vertical sag curve is used where the change in grade is positive, such as valleys, The 3 defining points are: I. PVC, II. PVI, III. POS, IV. PVT, V. PNR

CE Section Quiz 05

1. Calculate the flow in a 6 ft wide x 3 ft deep, rectangular, concrete channel with a 0.5% slope.

2. A 8 ft wide by 4 ft deep rectangular channel has an obstruction that creates a 2 ft deep flow downstream. What is the velocity downstream of the obstruction?

3. Which of the following is not a typical function of a retention pond:

4. Given an average rainfall intensity is 4.5 inches per hour, a 25-acre drainage area has a peak runoff rate of ______. The drainage area is 50% paved (C = 0.85) and 50% vegetation (C = 0.10).

5. Calculate Reynold’s number for a 4” inside diameter pipe with water flowing at 1.5 ft3/sec. The absolute roughness coefficient = 8.7 x 10-4 ft. Kinematic viscosity of water = 1.217 x 105ft2/s.