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Questions and Answers
Which of the following is not considered a Variation Order?
Which of the following is not considered a Variation Order?
- Extra work order
- Resume order (correct)
- Change order
- Supplemental agreement
A project may be granted a time extension for delays due to reasons beyond the contractor's control if the affected works are what type of activities?
A project may be granted a time extension for delays due to reasons beyond the contractor's control if the affected works are what type of activities?
- Critical activities (correct)
- Dummy activities
- Hammock activities
- Non-critical activities
If work is 50% completed satisfactorily, what should be the retention rate on progress payments?
If work is 50% completed satisfactorily, what should be the retention rate on progress payments?
- 15%
- 5%
- 20%
- 10% (correct)
What is the permitted variation from the design thickness of a layer of aggregate base course?
What is the permitted variation from the design thickness of a layer of aggregate base course?
What is the permitted variation from the design thickness of a layer of aggregate subbase course?
What is the permitted variation from the design thickness of a layer of aggregate subbase course?
What is the rate of application of seal coat using cutback asphalt?
What is the rate of application of seal coat using cutback asphalt?
What is the required area of the trial section to assess material suitability for construction?
What is the required area of the trial section to assess material suitability for construction?
What is the accepted proportion mixture of cement for a Portland cement stabilized road mix?
What is the accepted proportion mixture of cement for a Portland cement stabilized road mix?
Defective works in a project should be reported to the contractor through which method?
Defective works in a project should be reported to the contractor through which method?
How much percentage is typically withheld on general items until final acceptance of a project?
How much percentage is typically withheld on general items until final acceptance of a project?
What is the accepted proportion mixture of lime for a Lime stabilized road mix?
What is the accepted proportion mixture of lime for a Lime stabilized road mix?
Which of the following is not considered a construction safety procedure?
Which of the following is not considered a construction safety procedure?
Which of the following is not a cause of delay in project implementation?
Which of the following is not a cause of delay in project implementation?
The bar chart used in project management is commonly referred to as what?
The bar chart used in project management is commonly referred to as what?
After 50% completion of work, what is the retention rate imposed if the work is satisfactory?
After 50% completion of work, what is the retention rate imposed if the work is satisfactory?
Which type of activities, as shown in the PERT/CPM diagram, may grant a time extension due to delays beyond the contractor's control?
Which type of activities, as shown in the PERT/CPM diagram, may grant a time extension due to delays beyond the contractor's control?
If the required thickness of item 200 is 300 mm, the material may be spread and compacted in how many layers?
If the required thickness of item 200 is 300 mm, the material may be spread and compacted in how many layers?
What is the term for a record compiled to contain the data and history of a project?
What is the term for a record compiled to contain the data and history of a project?
In riprapping construction, which element is provided as a water outlet and lateral pressure reliever?
In riprapping construction, which element is provided as a water outlet and lateral pressure reliever?
What do you call the process of strengthening an existing pavement by adding thickness?
What do you call the process of strengthening an existing pavement by adding thickness?
Concrete mix should not be in place for more than how many minutes from when the ingredients were mixed?
Concrete mix should not be in place for more than how many minutes from when the ingredients were mixed?
The maximum time allowed from when water is added to concrete mix until it is placed is?
The maximum time allowed from when water is added to concrete mix until it is placed is?
Before placing concrete, the base of a roadway should be kept moist for at least how long?
Before placing concrete, the base of a roadway should be kept moist for at least how long?
To protect newly poured Portland cement concrete from rain, which material is NOT required?
To protect newly poured Portland cement concrete from rain, which material is NOT required?
What is the allowable minimum penetration of piles in firm material?
What is the allowable minimum penetration of piles in firm material?
What should the condition of the tack coat be before the next course is applied?
What should the condition of the tack coat be before the next course is applied?
Concrete mix not placed within ______________ minutes from the time ingredients were charged should not be used.
Concrete mix not placed within ______________ minutes from the time ingredients were charged should not be used.
What is the minimum allowable atmospheric temperature in the application of Item 305 bituminous material?
What is the minimum allowable atmospheric temperature in the application of Item 305 bituminous material?
Why must the inside face of a pothole be made vertical before patching using asphalt?
Why must the inside face of a pothole be made vertical before patching using asphalt?
Repainting of a steel bridge is classified as which type of maintenance activity?
Repainting of a steel bridge is classified as which type of maintenance activity?
What is the process of cutting the branches around a tree on the roadside to encourage straight growth called?
What is the process of cutting the branches around a tree on the roadside to encourage straight growth called?
What is the minimum required penetration depth for piles in firm material?
What is the minimum required penetration depth for piles in firm material?
What is a contractor entitled to claim if a project is started more than 8 months after the bidding?
What is a contractor entitled to claim if a project is started more than 8 months after the bidding?
Before issuing a certificate of final inspection, which conference should be conducted in the field after a project completion?
Before issuing a certificate of final inspection, which conference should be conducted in the field after a project completion?
In an inspection report, what is the most critical item to include aside from findings?
In an inspection report, what is the most critical item to include aside from findings?
Which of the following data is not typically contained in a logbook?
Which of the following data is not typically contained in a logbook?
What formula is commonly used for computing price escalation?
What formula is commonly used for computing price escalation?
Which date serves as the basis for computing contract price escalation in a project awarded through public bidding?
Which date serves as the basis for computing contract price escalation in a project awarded through public bidding?
When computing contract price escalation for a project awarded through simplified bidding, which date is used?
When computing contract price escalation for a project awarded through simplified bidding, which date is used?
Which of the following is not considered a flood damage mitigation measure?
Which of the following is not considered a flood damage mitigation measure?
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Study Notes
Variation Orders and Extensions
- Variation Orders include change orders, extra work orders, and supplemental agreements; resume orders are not included.
- A project may receive a time extension if delays stem from reasons beyond the contractor's control, affecting critical activities.
Retention and Payments
- Upon satisfactory progress at 50% completion, no extra retention is imposed; a typical retention rate is 5%.
- General items payment typically withhold up to 20% until final project acceptance.
Material Specifications and Quality Control
- Permitted variation for aggregate base course thickness is ± 20 mm; subbase course thickness variation is ± 10 mm.
- Trial section area needed for material and method testing is about 400 sq.m.
Mixture Proportions
- The acceptable cement mix for Portland cement stabilized road mixes is 4 to 20 mass percent.
- Lime stabilization for road mixes accepts a lime proportion of 2 to 10 mass percent.
Soil and Base Conditions
- Sub-grade soil must be well compacted at optimum moisture and maximum dry density for quality control.
- Concrete procedures dictate base moistening for at least 6 hours before placing concrete.
Project Management and Reporting
- Defective works are reported to the contractor through an inspection report.
- The logbook does not include survey data but documents daily activities, weather conditions, and material usage.
Construction Safety and Delays
- Construction safety procedures involve proper shoring of excavations and guarding openings; logging by equipment operators is essential.
- Causes of delays include plan revisions and inadequacies in contractor resources; natural factors like predetermined rainy seasons do not count.
Planning Tools and Maintenance
- Bar charts are synonymous with Gantt charts, vital for project scheduling.
- Repainting of a steel bridge is categorized as periodic maintenance.
Concrete Handling Regulations
- Concrete must be mixed and placed within 90 minutes of initial mixing; transport time from addition of water to placement should not exceed 30 minutes.
- Waterproofing materials for fresh concrete include burlap or plastic sheeting, while metal forms may not be suitable.
Piles, Tack and Temperature Considerations
- Minimum penetration for piles in firm material is 4.0 meters; tack coat conditions should be sticky before applying the next course.
- The minimum temperature for bituminous material application is 10 ºC.
Inspections, Reports, and Allowances
- Post-final inspection, certificates of completion are contingent on conducting an exit conference.
- Essential items in inspection reports include recommendations for actions rather than team member details.
Price Adjustment and Flood Mitigation
- Contract price escalation is generally computed from the effectivity date of the contract.
- Flood damage mitigation strategies encompass reservoir flow reduction and floodplain management, while highway drainage does not qualify as a mitigation measure.
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