1. Which of the following is not on OSHA's Top 10 Most Frequently Cited Violations?

2. What is the number 1 construction hazard in terms of fatalities?

1. A temporary structure erected to support a construction process would be required to support what load if:

• The final installed dead load of the construction being supported = 35,000 lbs.
• The construction dead load = 8,500 lbs.
• The variable material load = 2,900 lbs.
• The personnel/equipment load = 1,800 lbs.

2. A type of concrete formwork that allows a contractor to cast walls and slabs in one operation is known as:

3. A system of temporary supports to the party walls of two buildings where the intermediate building is to be taken down and rebuilt is known as:

4. Braces constitute a temporary support system used to resist __________ loads until all final structural connections between the load-bearing panels and the roof and floor diaphragms are completed.

1. Which of the following steel properties can be increased by minimizing the amount of sulfur?

2. The main focus of a Quality Control (QC) process is to maintain conformance to the original design and planning decisions during construction. Once a project has entered the construction phase, who is primarily responsible for implementing the QC process?

3. What is the Yield of a delivery of 150 #/cuft concrete if the batch ticket presented by the driver indicates a weight of 32,400 lbs?

4. The addition of an air-entraining admixture to concrete will result in decreased:

1. Determine the overall expected duration if each activity must be completed before the next activity can begin for a project with the following activities and durations:

2. In the CPM Schedule shown, which path is the Critical Path?

3. Refer to the CPM Schedule shown in the previous example. A change order issued by the Architect has altered the duration of task E-M from 7 days to 12 days. Which path is now the critical path?

4. On a given project, when more resources (such as machines or people) are needed than are available, or perhaps a specific person is needed in both tasks, the tasks will have to be rescheduled concurrently or even sequentially to manage the constraint. Project Planning Resource Leveling is the process of resolving these conflicts. It can also be used to balance the workload of primary resources over the course of the project, usually at the expense of one of the traditional triple constraints. Which of the following are the traditional constraints governing the completion of a project?

1. Determine the center of gravity for the following load. Neglect the depth.

2. Calculate the Resisting Moment for a crane lifting a 100,000 lb load. The crane has a 25,000 lb counterweight and the distance from the counterweight CG to the toppling point is 10 ft. The crane weighs 90,000 lbs and the distance from the crane CG to the toppling point is 10’.

3. Calculate the hydraulic conductivity of a 30 in long soil sample that has a cross sectional area of 3 in². The amount of water collected after 60 minutes is 3 in³. The measured head difference is 6 in.

4. Which of the following is not a typical method of installing a deep foundation?

1. Calculate the number of standard bricks required for a 100’ wide by 36’ high wall with 2 3’ x 7’ door openings and 10 – 4’ x 4’ window openings. A standard brick is 8” x 3¾” x 2¼”. Mortar joints are ½” thick. Assume 5% waste.

2. Calculate the mortar required for problem 1.

3. Using Equivalent Uniform Annual Cost (EUAC), which of the following pieces of equipment is the best choice if the annual interest rate is 3.5%?

1. Calculate the total volume of soil to be excavated using the Average End Method:

2. What is the swell factor for a load of soil with dry bank weight of 2000 lbs and a dry loose unit weight of 1,850 lbs?

3. Given: Elevation 1 = Benchmark = 100.00 ft, Survey Pole 1 Reading = 12.5 ft, Survey Pole 2 Reading = 5.3 ft, Survey Pole 3 Reading = 8.9 ft. Determine Elevation 3.

4. In Haul Distance calculations, the portion of the haul that is beyond the specified free-haul distance is known as __________.

5. The geologic feature that occurs when one or a stack of originally flat and planar surfaces are bent or curved as a result of permanent deformation is known as a __________.

CEC-1     Calculate the total net cut for the following using the Average End Method:

CEC-2     One end of an excavation is at station 1+00 and has a cross-sectional area of 82 sqft. The middle of the excavation is at station 2+50 and has a cross-sectional area of 297 sqft. The end of the excavation is at station 4+00 and has a cross-sectional area of 0 sqft. What is the total net cut for this site?

CEC-3     Calculate the swell factor for a borrow pit with a dry bank weight of 20,000 lbs and a dry loose unit weight of 18,000 lbs.

CEC-4     Elevation 2 = 137.97 ft, Survey Pole 2 reading = 12.06 ft, and Survey Pole 3 reading = 21.48 ft. What is Elevation 3?

CEC-5     On an Earthwork Mass Diagram, a Balance Point is:

CEC-6     Repetitive layering in metamorphic rocks caused by shearing forces (pressures pushing different sections of the rock in different directions), or differential pressure (higher pressure from one direction than in others) is a __________.

CEC-7     The soil in a 100 ft x 100 ft x 10 ft deep excavation has a swell factor of 21% and a shrinkage factor of 17%. How much backfill soil will be required in LCY?

CEC-8     How many standard concrete blocks (7-5/8” x 7-5/8” x 15-5/8”) are required to build a wall 10 ft high x 30 ft long? Mortar joints are to be 0.5”.

CEC-9     Estimate the cost to build a 10 ft x 41 ft x 1 ft retaining wall with the following:

• Concrete cost = $91.50/yd³
• Rebar cost = $4.97 per 10 ft piece
• Base drain = 4.15/ft
• Labor = $45/hr
• Concrete form rental = $150/day

The wall will require 160 pieces of rebar, 40 feet of base drain, 2 laborers, and 5 days form rental. Laborers work 8 hours/day for 5 days.

CEC-10    A four-story office building built in Dallas, Texas in 2005 cost $5,750,500. What would that same building cost to build in 2015 if the historical cost indexes are 133.7 for 2005 and 160.2 for 2015.

CEC-11    Using Equivalent Uniform Annual Cost (EUAC), which of the following systems is the best choice is the annual interest rate is 3.1%?

CEC-12    Which of the following does not cause variations in productivity?

CEC-13    Determine the center of gravity (X, Y) for the following load. Neglect the depth.

CEC-14    If the Z dimension (of the load in CEC-13) is 30’ and the center of gravity is 15’ from the reference point, what is the Sling Angle Factor for sling arm L? The lifting point is 10 ft above the highest point of the load.

CEC-15    Determine the Toppling Moment for a crane lifting a 18000 lb load. The load is located 15 feet from the toppling point of the crane. The crane boom weighs 1500 lbs and is 27 feet long.

CEC-16    Use the crane in question CEC-15. The center of gravity of the counterweight is 9 feet from the toppling point. The crane weighs 27,500 lbs and the center of gravity of the crane is 8 feet from the toppling point. If the Toppling Factor of Safety is 2.0, how heavy is the counter weight?

CEC-17    Observation wells are drilled 17 feet and 25 feet away from a pumped well. After the system reaches equilibrium, a water level of 15 feet is recorded in observation well 1 and a water level of 19 feet is recorded in observation well 2. If the pump is removing 16.5 cuft/min from the pumped well, what is the hydraulic conductivity of the soil?

CEC-18    For a single, 3 ft diameter driven pile subjected to an axial load of 75 kips, determine the ultimate end bearing of the pile. The pile is 20 ft long steel with a plugged end. Use a factor of safety of 3.0.

• soil unit weight, g = 130 lbs/ft³
• cohesion, c = 750 lb/ft²
• angle of internal friction, f = 28°

CEC-19    For the pile in question CEC-18, determine the ultimate friction capacity of the pile.

CEC-20    For the pile in question CEC-18, determine the ultimate pile capacity.

CEC-21    For the pile in question CEC-18, determine the allowable bearing capacity. Is the pile capable of handling the imposed load?

CEC-22    In the CPM Schedule shown, activities K & L are no longer part of the project. Which path is the Critical Path?

CEC-23    Resource Leveling manipulates __________ based on resource constraints with the goal of balancing demand for resources with the available supply.

CEC-24    The objective of the Time-Cost Tradeoff analysis is to determine which activities to “crash” in order to produce the maximum overall job profit by finding the sweet-spot between increasing costs of specific activities and decreasing overall project costs. Which of the following could be manipulated in the Time-Cost Tradeoff analysis:
I.   overtime
II.  additional shifts
III. improved equipment
IV. reduced scope

CEC-25    Cement is one of the components of concrete. To produce cement, calcium carbonate must be thermally decomposed to produce __________ and __________.

CEC-26    Calculate the Plastic Limit of a soil sample with a wet weight of 9.1 gm and a dry weight of 7.9 gm.

CEC-27    The American Welding Society (AWS) publishes codes pertaining to welding requirements. According to the AWS, what are the three broad categories of welded construction documentation?
I.    Materials
II.  Weather conditions
III. Welding procedures
IV . Personnel Qualifications

CEC-28    Weekly construction progress meetings with the owner (or owner’s rep), the architect, the engineers, and the contractors would most likely be considered:

CEC-29    Concrete Proportioning is intended to ensure hardened concrete will have the required:
I.    Strength
II.  Wear resistance
III. Durability
IV. Finish

CEC-30    The Concrete Maturity Method (ASTM C1074) estimates the strength of concrete by monitoring the __________ of the concrete during its first stages of hardening.

CEC-31    The Soil Test that allows the sample and the pore pressures to fully consolidate (i.e., adjust) to the surrounding stresses is the __________ test.

CEC-32    Using the Rankine method, find the total earth pressure force on an 8 foot high retaining wall. The total unit weight of the soil is 131 pcf and has a friction value of 26 degrees.

CEC-33    Which of the following systems uses movable formwork to operate around the clock forming concrete?

CEC-34    Falsework consists of temporary structures used to support spanning or arched structures in order to hold the component in place until its construction is sufficiently advanced to support itself. Falsework also includes temporary support structures for:
I.    Formwork
II.   Scaffolding
III. Shoring

CEC-35    A concrete slab being formed using metal pans requires a system of shores until the concrete has attained a level of strength to support itself. The slab is 40 ft by 60 ft. The concrete is 4” thick and weighs 150 pcf. The pan system weighs 8 lbs/sf and the shores can support up to 1,000 lbs each. How many shores would be required?

CEC-36    The construction process used to strengthen the foundation of an existing structure is:

CEC-37    A temporary structure installed to provide a dry working environment for the construction of bridge piers is called a:

CEC-38    Correction of a safety or health hazard/violation that led to an OSHA citation is __________

CEC-39    According to OSHA, approximately 2.3 million construction workers frequently work on scaffolds. Protecting these workers from scaffold-related accidents would prevent an estimated _____ injuries and 50 fatalities each year.

CEC-40    According to OSHA, __________________ people are injured each year as a result of crashes in work zones.

CEC-1     Earthwork Construction and Layout/Excavation and Embankment

Which of the following is not a standard method of calculating cut/fill volumes:

CEC-2     Earthwork Construction and Layout/Borrow Pit Volumes

25,000 ft³ of soil with a compacted density of 125 pcf and a moisture content of 10% is required at a construction site. The soil in the borrow pit has a density of 100 pcf and a moisture content of 9.1%. What total volume of borrow pit soil is needed at the construction site?

CEC-3     Estimating Quantities and Costs/Cost Analysis for Resource Selection

Using Equivalent Uniform Annual Cost (EUAC), which of the following is the best choice (assume annual interest rate of 4.0%):

• Option 1:
  • cost of installation = $1,350
  • useful life = 7 years
  • annual maintenance costs = $1,000
• Option 2:
  • cost of installation = $1,800
  • useful life = 10 years
  • annual maintenance costs = $950
• Option 3:
  • cost of installation = $2,190
  • useful life = 15 years
  • annual maintenance costs = $500
• Option 4:
  • cost of installation = $2,500
  • useful life = 12 years
  • annual maintenance costs = $350

CEC-4     Construction Operations and Methods/Lifting and Rigging

To ensure the safest operation possible, loads should be lifted:

CEC-5     Scheduling/Critical Path Method (CPM) Network Analysis

The first step in assembling a CPM project plan is to define the __________ including duration, start date, finish date, predecessors, etc.

CEC-6     Material Quality Control and Production/Weld and Bolt Installation

What is the maximum shear stress a 1”, A325 bolt can withstand? Yield strength of bolt is 92 ksi.

CEC-7     Material Quality Control and Production/Concrete Proportioning and Placement

Of the factors that affect concrete mix design strength, which one is the most important?

CEC-8     Temporary Structures/Construction Loads, Codes, and Standards

The exterior bearing walls of a building classified Type IA must have a _____ hour fire-resistance rating.

CEC-9     Temporary Structures/Bracing and Anchorage for Stability

For the shear wall section shown, what is the overturning moment if the wall is 14 ft tall? Use a safety factor of 1.5.

CEC-10    Health and Safety/Safety Management and Statistics

The Occupational Safety & Health Administration provides documentation and guidelines for construction site safety including the use of protective devices and gear to lessen the risk of falls. at what height does OSHA require the use of a harness or other fall-preventative device?