California CSLB A General Engineering Examination

A general engineering contractor is preparing a bid for a site excavation job requiring the movement of 45,000 bank cubic yards (BCY) of earth. Soil swelling factor is 20%. If hauling trucks carry 15 loose cubic yards (LCY) per trip, how many total truck trips are needed?

• A3,600 trips
• B3,000 trips
• C4,200 trips
• D2,800 trips

In Critical Path Method (CPM) scheduling for a bridge abutment project, what is the definition of total float?

• AThe time an activity can be delayed without delaying the late start of the next immediate…
• BThe maximum time an activity can be delayed without extending the overall completion date.
• CThe duration required to complete an activity using expedited overtime and double shifts.
• DThe contingency buffer assigned exclusively to rain days and unforeseen subsurface site c…

An estimator calculates that a concrete retaining wall requires 120 cubic yards of concrete. Adding a standard 8% waste factor, how many 9-cubic-yard ready-mix truckloads must be ordered?

• A13 truckloads
• B14 truckloads
• C15 truckloads
• D16 truckloads

Under Public Contract Code regulations for public works in California, what is the purpose of a bid bond submitted with a contractor's proposal?

• AIt guarantees the project owner will pay the contractor within 30 calendar days.
• BIt reimburses subcontractors if the prime contractor defaults on progress payments.
• CIt covers environmental damage claims arising from storm water runoff.
• DIt guarantees the low bidder will execute the contract and furnish required bonds.

When interpreting civil engineering plan drawings, what line type represents existing ground surface contours?

• ADashed lines
• BSolid thick lines
• CCenterlines with long and short dashes
• DDouble phantom lines

A contractor estimates the hourly operating cost of a 30-ton excavator. Purchase price is $300,000, expected lifecycle is 10,000 operating hours, and fuel/maintenance costs $45 per hour. Ignoring interest, what is the hourly cost?

• A$65 per hour
• B$75 per hour
• C$85 per hour
• D$95 per hour

In public works contracts governed by Caltrans standard specifications, what document takes precedence if a conflict exists between the project plans and special provisions?

• ACaltrans Standard Specifications
• BStandard Plans
• CSpecial Provisions
• DContractor's bid proposal

A utility contractor must install 2,400 linear feet of 12-inch PVC pipe. If a crew installs 160 linear feet per 8-hour workday, how many workdays are required to complete pipe laying?

• A12 workdays
• B18 workdays
• C20 workdays
• D15 workdays

What is the primary purpose of a quantity take-off (QTO) during the pre-construction estimating phase?

• ATo compile an accurate inventory of all physical materials, labor, and equipment from pla…
• BTo establish the final property lines and legal boundaries of the construction site befor…
• CTo obtain municipal building permits from the local building department.
• DTo submit quarterly tax returns for heavy equipment road use fees.

A contractor's overhead rate is 12% of direct costs and targeted profit is 8% of total project price. If total direct costs for a project are $500,000, what should the final bid price be?

• A$580,000
• B$608,696
• C$600,000
• D$620,000

In heavy civil construction, what does the term bank cubic yard (BCY) refer to?

• ASoil volume after it has been excavated and loaded into a dump truck.
• BSoil volume after it has been placed and compacted on a structural fill.
• CSoil volume in its natural, undisturbed state prior to excavation.
• DSoil volume measured in a stockpiled pile after moisture conditioning.

What is the primary function of a schedule of values in a lump-sum heavy civil contract?

• AIt establishes the liquidated damages penalty for project delays.
• BIt determines subcontractor wage rates mandated by prevailing wage laws.
• CIt lists all safety violations recorded by Cal/OSHA during inspections.
• DIt breaks down the contract sum into progress payment line items.

An estimator calculates that an earthfill embankment requires 15,000 compacted cubic yards (CCY). If the shrinkage factor is 15%, so that 1 BCY of borrow yields 0.85 CCY in place, how many BCY of excavation are required?

• A17,647 BCY
• B15,000 BCY
• C12,750 BCY
• D19,500 BCY

What type of insurance protects a general engineering contractor against third-party bodily injury and property damage claims occurring on the job site?

• ABuilder's Risk Insurance
• BCommercial General Liability (CGL) Insurance
• CWorkers' Compensation Insurance
• DProfessional Errors and Omissions Insurance policy

When submitting a formal bid on a California public works project, what is the threshold percentage of prime bid above which subcontractors must be listed?

• A0.1% of the prime bid
• B1.0% of the prime bid
• C0.5% of the prime bid
• D5.0% of the prime bid

In structural engineering, what type of internal stress occurs when equal and opposite forces act outward to pull a structural member apart?

• ACompression stress
• BTorsional stress
• CShear stress
• DTensile stress

What is the primary function of a shear key constructed at the base of a reinforced concrete cantilever retaining wall?

• ATo increase resistance against lateral sliding of the wall structure.
• BTo reduce overturning moment caused by soil lateral pressure behind the stem.
• CTo prevent water accumulation behind the retaining wall stem.
• DTo eliminate vertical settlement under the wall footing.

A simply supported horizontal steel beam of span length L carries a uniformly distributed load W. Where does the maximum bending moment occur?

• AAt both end support locations.
• BAt the exact midpoint of the span.
• CAt one-quarter span from either support.
• DAt one-third span from the left support.

What structural force is resisted primarily by diagonal stirrups placed vertically or inclined in a reinforced concrete beam?

• ADirect axial compression
• BLongitudinal tensile bending failure mode
• CDiagonal tension caused by shear stress
• DThermal expansion stress

According to the California Building Code (CBC), what dynamic lateral load factor must civil structures be engineered to withstand during seismic events?

• AWind velocity uplift pressure on the roof
• BHydrostatic buoyancy force
• CDead load gravity multiplier
• DEarthquake ground acceleration forces

What happens to maximum bending stress in a solid rectangular timber beam if its depth is doubled while keeping width and span constant?

• ABending stress is reduced by a factor of four.
• BBending stress is reduced by half.
• CBending stress remains unchanged.
• DBending stress increases by a factor of two instead.

When establishing site control elevations with an optical level, the backsight (BS) reading on Benchmark 1 (elevation 150.00 ft) is 5.25 ft. The foresight (FS) on Point A is 3.10 ft. What is the elevation of Point A?

• A147.85 ft
• B152.15 ft
• C155.25 ft
• D144.75 ft

According to Caltrans standard specifications for highway grading, what relative compaction percentage is typically required for structural embankment subgrade?

• AMinimum 85% relative compaction
• BMinimum 90% relative compaction
• CMinimum 95% relative compaction
• DMinimum 100% dry density

A roadway section requires a cut area of 120 sq ft at Station 10+00 and a cut area of 180 sq ft at Station 11+00 (distance 100 ft). Using average end area, what is the cut volume between stations?

• A444 BCY
• B666 BCY
• C750 BCY
• D556 BCY

What soil testing procedure determines the maximum laboratory dry density and optimum moisture content of a soil sample?

• AModified Proctor Test (ASTM D1557)
• BAtterberg Limits Test (ASTM D4318)
• CSieve Analysis Test (ASTM C136)
• DStandard Penetration Test (SPT ASTM D1586)

On a slope stake marked C-4.5 / 12.0, what does C-4.5 indicate to the earthwork equipment operator?

• AClear brush 4.5 feet past the stake.
• BCut 4.5 feet vertically to reach subgrade elevation.
• CCompact fill material in 4.5-inch loose lifts maximum.
• DCenterline offset distance is 4.5 yards.

What is the primary operational advantage of using a sheepsfoot (tamping foot) roller over a smooth-drum roller during soil compaction?

• AIt creates a smooth, sealed surface to resist rainfall erosion damage.
• BIt compacts thin asphalt concrete wearing courses efficiently.
• CIt kneads cohesive clay soils from the bottom of the lift upward.
• DIt crushes large granitic rock fragments into fine aggregate.

What site condition requires pre-wetting or moisture conditioning of borrow pit soil prior to excavation and compaction?

• ASoil moisture content is 4% above optimum moisture.
• BSoil is a saturated clean gravel with high permeability.
• CWater table is located 2 feet above proposed excavation grade.
• DSoil moisture content is significantly below optimum moisture.

A grade stake indicates a finish elevation of 245.50 ft. The ground elevation at the stake is 248.20 ft. What is the required depth of cut?

• A2.70 feet
• B3.30 feet
• C2.30 feet
• D3.70 feet

What type of surveying instrument measures both horizontal and vertical angles as well as slope distances electronically using an integrated EDM?

• AAutomatic Builder's Level
• BTotal Station
• CEngineer's Transit
• DHandheld Clinometer

When excavating in expansive soil (such as highly plastic clay), what engineering measure prevents pavement heave and structural foundation cracking?

• ACompact dry clay soil to 100% relative density.
• BBackfill the excavation with untreated native topsoil.
• COver-excavate clay soil and sub-replace with non-expansive imported fill.
• DIrrigate the open excavation daily during structural placement of rebar cages.

What slope ratio represents a grade that drops 1 foot vertically over a horizontal distance of 3 feet?

• A1:3 (V:H) or 33.3% grade
• B3:1 (V:H) or 300% grade
• C1:3 (H:V) or 300% grade
• D3:1 (H:V) or 33.3% grade

What field test method measures in-place soil density quickly using a small sealed radioactive source?

• ANuclear Density Gauge Test (ASTM D6938)
• BSand Cone Test (ASTM D1556)
• CRubber Balloon Test (ASTM D2167) field method
• DDrive Cylinder Test (ASTM D2937)

A site plan specifies a 2.5% longitudinal slope for a 400-foot drainage swale. What is the total vertical drop from the head of the swale to the discharge outlet?

• A8.0 feet
• B10.0 feet
• C12.0 feet
• D15.0 feet

What surveying term refers to a permanent fixed point of known elevation used as a reference for all site levelling?

• ATurning Point (TP)
• BInstrument Station (IS)
• CBenchmark (BM)
• DControl Hub (CH)

In heavy grading operations, what piece of earthmoving equipment is best suited for excavating, loading, hauling, and spreading soil over medium haul distances (500 to 3,000 feet)?

• ATrack-type hydraulic excavator
• BHydraulic mini-backhoe
• CArticulated off-highway dump truck
• DWheel tractor-scraper

According to California Underground Service Alert (USA North 811 / DigAlert) requirements, how many working days advance notice must an excavator provide before commencing excavation?

• AAt least 2 working days, but not more than 14 calendar days.
• BAt least 5 working days, but not more than 30 calendar days.
• CExactly 24 hours prior to groundbreaking.
• DAt least 10 working days advance notification.

What is the purpose of installing concrete thrust blocks at bends and tees in pressurized water distribution pipelines?

• ATo anchor pipes against vertical frost heave in freezing ground.
• BTo counteract internal hydrostatic thrust forces that attempt to dislodge pipe joints.
• CTo insulate domestic water supply mains against thermal heat loss in freezing winter clim…
• DTo act as electrical grounding electrodes for cathodic protection.

A 24-inch storm drain pipe is laid at a slope of 0.005 ft/ft. Over a run of 350 feet, how much lower is the invert elevation at the downstream manhole compared to the upstream manhole?

• A1.25 feet
• B2.10 feet
• C1.75 feet
• D2.45 feet

When performing hydrostatic pressure testing on a newly installed ductile iron water main, at what test pressure and duration is the pipe typically evaluated?

• A50 psi for 30 minutes minimum
• B100 psi for 1 hour minimum
• C125 psi for 4 hours minimum
• D150 psi for 2 hours minimum

In gravity sanitary sewer trenching, what is the pipe zone bedding material requirement under standard California municipal specifications?

• ACrushed aggregate or sand from 4 inches below pipe barrel to 12 inches above pipe crown.
• BNative un-compacted clay backfill placed up to the springline of the pipe.
• COrganic topsoil mixed with portland cement to form low-density slurry.
• DCoarse 3-inch cobbles deposited directly against flexible plastic pipe walls without bedd…

What color marker paint is mandated under APWA uniform color standards for marking underground potable water lines during USA utility locates?

• AYellow paint
• BBlue paint
• CGreen paint
• DRed paint

When installing elevated piping on structural steel bridge hangers, what device accommodates thermal expansion and contraction of long pipeline runs?

• ARigid flange couplings
• BConcrete thrust cradles poured at each fitting
• CExpansion joints or flexible loop couplings
• DWelded steel sleeve anchors

What parameter is checked during a low-pressure air test of a newly installed non-pressure gravity sanitary sewer line (UNI-B-6)?

• ATime required for internal pressure to drop from 100 psi to 90 psi.
• BVolume of water leaking into manholes over a 24-hour soak period.
• CElectric resistance across pipe gasket joints under submerged conditions.
• DTime elapsed for internal air pressure to drop from 3.5 psig to 2.5 psig.

What sacrificial metal anode is most commonly used in passive cathodic protection systems to prevent galvanic corrosion of buried steel water pipelines?

• AMagnesium or zinc anodes
• BStainless steel anodes only
• CCast copper anodes
• DLead-alloy anodes