Questions and Answers
What is the term for the annual inspection of a bridge conducted during the rainy season?
What is the range of ground acceleration values for seismic zone 2B?
If the slump value is equal to the height of the slump cone, how is it classified?
Which type of bridge is most suitable for short to medium spans and capable of supporting railroads?
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What is the correct formula for the moment of inertia of a rectangular section?
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What is the angle of internal friction for round grained dense sand?
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Which ASTM code corresponds to ready mix concrete?
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For a simply supported beam with uniform distributed load, what is the formula for the maximum reaction force?
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What is the term used to describe the point around which a floating body starts oscillating after an angular displacement?
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What is the angle of internal friction for loose round sand?
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Study Notes
Retaining Walls and Structural Safety
- Retaining walls must resist applied earth pressure structurally.
- Designs should prevent overturning from lateral pressures.
- Safety measures are essential against sliding.
- Weep holes are typically placed near the bottom, not the top, to drain retained water.
PSDP and PERT Terms
- PSDP: Public Sector Development Programme.
- PERT stands for Project Evaluation Review Technique.
Procurement Regulatory Authorities
- PPRA: Public Procurement Regulatory Authority.
Civil Engineering Principles
- Pre-qualification aims to shortlist relevant firms and reduce project costs.
- Inertia force to elastic force ratio is referred to as the Mach number.
- Successful bidders are determined by the lowest evaluated responsive bidder (LERB).
Fluid Mechanics and Concrete
- The total energy of a particle in perfect incompressible fluid remains constant in continuous streams.
- Plain cement concrete has different strengths in compression and tension.
- Fineness modulus indicates relative sizes of coarse and fine aggregates.
- For a 1:2:4 concrete mix, approximately 0.574 m³ of coarse aggregate is needed per cubic meter.
Engineering Materials and Specifications
- Froude number is vital in analyzing fluid flow scenarios involving gravity and wave making.
- An RCC column is considered long if its slenderness ratio exceeds 12.
- Liquid waste pipes specifically designed for human excreta are termed soil pipes.
- Modular ratio affects the depth of a critical neutral axis in beams.
Structural Analysis
- Maximum deflection in a cantilever beam occurs at the free end.
- Propped cantilever beams have one end fixed and the other end supported.
Safety and Building Standards
- Factor of safety is calculated as ultimate stress to working stress.
- Compressive strength of mortar according to BCOP should not be less than 500 Psi.
- Ground acceleration values vary by seismic zone classifications.
Miscellaneous Topics
- Inspection of bridges in rainy seasons is categorized as routine survey.
- Special surveys focus on condition assessments conducted periodically.
Construction Practices
- ASTM code C-94 specifies standards for ready-mix concrete.
- The moment of inertia for a rectangular section is given by ( \frac{bh^3}{12} ).
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Description
Test your knowledge on key concepts in civil engineering, including retaining walls, procurement regulations, and fluid mechanics. This quiz will cover essential terms like PSDP and PERT, as well as vital safety measures in structural design. Prepare to challenge your understanding of construction techniques and principles.
