Correct Answer: the sub-grade or sub-surface of the road
Explanation: Sub-surface drainage involves the removal of rainwater specifically from the sub-grade or sub-surface of the road. This drainage mechanism is critical for preventing waterlogging and maintaining the stability of the road structure.
Correct Answer: trapezoidal in section
Explanation: In areas with heavy rainfall, it is advisable to construct side drains with a trapezoidal section. This design facilitates efficient water flow, minimizing the risk of water accumulation and potential damage to the road.
Correct Answer: 60 cm
Explanation: The parapet wall on the valley side of the roadway is typically designed with a thickness of 60 cm. This dimension ensures the structural integrity and stability of the wall in relation to the terrain.
Correct Answer: 25 cm below the road surface
Explanation: The free board in side drains should be maintained at least 25 cm below the road surface to accommodate adequate drainage capacity and prevent overflow.
Correct Answer: on both sides of the road
Explanation: When a road is constructed in cutting, it is advisable to provide side drains on both sides of the road. This ensures effective water drainage and stability in the cut slope.
Correct Answer: on the hillside of the road
Explanation: In the context of hill roads in Nepal, side drains are strategically placed on the hillside of the road. This configuration effectively manages water runoff, prevents soil erosion, and ensures the stability of the road in challenging hilly terrains.
Correct Answer: skew bridge
Explanation: A bridge that does not align perpendicularly with the stream flow is termed a skew bridge. The skewness occurs when the center line of the bridge deviates from a right angle to the direction of the stream. Skew bridges are designed to accommodate such angular alignments, ensuring proper functionality and structural stability.
Correct Answer: small width
Explanation: Timber bridges are commonly employed in situations where the width of the bridge span is relatively small. Timber’s structural characteristics make it suitable for smaller spans, and it offers a cost-effective solution for short-width crossings.
Correct Answer: 8 m
Explanation: Wood beams are typically suitable for spans up to 8 meters. Beyond this span, other structural solutions may be considered for optimal bridge design and stability.
Correct Answer: 10-25 m span
Explanation: T-beams are well-suited for spans ranging from 10 to 25 meters. This structural configuration provides stability and load-bearing capacity for moderate span lengths.
Correct Answer: abutment
Explanation: The end supports of a bridge are termed abutments. Abutments provide essential support and stability to the bridge structure, anchoring the ends of the bridge to the ground.
Correct Answer: piers
Explanation: The intermediate supports of a bridge, located between the abutments, are called piers. Piers play a crucial role in distributing the load of the bridge and ensuring overall structural integrity.
Correct Answer: single-lane bridge
Explanation: Feeder roads typically feature single-lane bridges, especially in areas with lower traffic volume. The bridge design aligns with the specific requirements of feeder roads.
Correct Answer: 2
Explanation: The minimum number of abutments in a bridge is typically two. Abutments provide primary support at the ends of the bridge, connecting it to the ground.
Correct Answer: handrail cable
Explanation: In a suspension bridge, the handrail cable does not bear the primary load. The main cable and other structural elements are designed to carry the significant loads, ensuring the bridge’s stability and safety.
Correct Answer: to provide lateral stability
Explanation: The wind guy cable in a suspension bridge is primarily provided to offer lateral stability. It helps counteract the lateral forces caused by wind, ensuring the overall stability and safety of the bridge.
Correct Answer: 75 cm
Explanation: The height of the parapet wall provided above the beam level is typically 75 cm. This dimension is designed to enhance safety and prevent objects from falling off the bridge structure.
Correct Answer: 32 mm
Explanation: The maximum thickness of otta seal is 32 mm. Otta seal is a type of road surface treatment that involves the application of a mixture of gravel and binding agents to improve road durability.
Correct Answer: 16 mm
Explanation: The maximum size of aggregate used for a single otta seal is 16 mm. This aggregate size is selected to achieve the desired characteristics and performance of the otta seal surface.
Correct Answer: 15 cm
Explanation: The minimum thickness of the base course in road construction is generally 15 cm. Adequate thickness is essential to provide structural support and distribute loads effectively.
Correct Answer: 15 m
Explanation: The minimum length of the transition curve in a hill road is typically 15 meters. The transition curve is essential for a gradual change in curvature, improving driver comfort and road safety.
Correct Answer: 50 kmph
Explanation: The design speed for hill terrain on a trunk road is typically 50 kmph. Design speed considerations are crucial for ensuring safe and efficient traffic flow on hilly terrains.
Correct Answer: 50 cm
Explanation: The thickness of the pavement, considering the wearing course, base course, sub-base course, and capping layer, would be 50 cm. This cumulative thickness is essential for the overall durability and performance of the pavement structure.
Correct Answer: roadways
Explanation: In Nepal, for transportation purposes, the first preference is given to roadways. This is due to the challenging terrain and the importance of road networks in providing connectivity.
Correct Answer: 10%
Explanation: The maximum super-elevation (banking) on hill roads should not exceed 10%. Super-elevation is the transverse slope provided to counteract the effect of centrifugal force on vehicles negotiating curves.
Correct Answer: speed of the vehicle
Explanation: The design aspects of horizontal and vertical alignments, super-elevation, sight distance, and grades are primarily influenced by the speed of the vehicle. Vehicle speed is a critical factor in determining the geometric features of a road.
Correct Answer: tail race
Explanation: In highway engineering, “tail race” is irrelevant. The other terms—kerb, camber, and asphalt—are directly associated with road design and construction.
Correct Answer: longitudinal joint
Explanation: The joints parallel to the center line of the road are called longitudinal joints. These joints are designed to accommodate movements and thermal expansions along the length of the road.
Correct Answer: both (b) and (c)
Explanation: The background color of the informatory signboard can be either white or yellow. Both colors are commonly used for different types of informatory signs.
Correct Answer: initially 8t roller and 10t roller later
Explanation: In the full grouted method of construction of bituminous roads, rolling is typically done initially with an 8-ton roller and later with a 10-ton roller. This rolling process is essential for achieving proper compaction and bonding of the bituminous material.
Correct Answer: both of the above
Explanation: Obligatory points in a road alignment refer to points that the road must pass through or points that the road should avoid. These are critical considerations in the geometric design of a road to ensure proper functionality and safety.
Correct Answer: fly over structure
Explanation: A flyover structure is a traffic junction designed to allow all traffic streams to be divided and unobstructed, enabling them to pass over or under each other. This design helps in managing traffic flow efficiently.
Correct Answer: all of the above
Explanation: Bitumen stabilization serves multiple purposes, acting as a hydrophilic medium, providing adhesion for coarse-grained materials, acting as a waterproofing agent for fine-grained materials, and contributing to the strength of the construction.
Correct Answer: all of the above
Explanation: The geometric design of highways is influenced by a combination of factors, including speed, comfort, and safety. Achieving a balance among these features is crucial for designing efficient and safe road layouts.
Correct Answer: excess moisture in causes chemical reactions in sub grade and pavement materials
Explanation: Excess moisture in the subgrade and pavement materials can cause various issues, but it typically does not lead to chemical reactions in subgrade and pavement materials.
Correct Answer: operating speed
Explanation: The highest overall speed at which a driver can travel under prevailing conditions without exceeding the safe design speed is known as the operating speed. This considers factors such as road conditions, visibility, and traffic.
Correct Answer: most recent
Explanation: Water-bound Macadam is considered one of the most recent types of pavements. It involves the use of well-graded aggregates and is often used for rural roads and low-volume traffic areas.
Correct Answer: black spots
Explanation: Weak areas on a road that consistently experience problems or accidents are known as black spots. Identifying and addressing these areas is crucial for improving road safety.
Correct Answer: both of the above
Explanation: The main important modifications in Macadam’s method include improved subgrade drainage and compaction practices, as well as recognizing that foundation stones may not be necessary at the bottom layer. Both modifications contribute to better road construction practices.
Correct Answer: more than that in the horizontal road
Explanation: The stopping sight distance required on a downhill slope of a road is generally more than that on a horizontal road. This accounts for the increased distance needed for vehicles to come to a stop safely on a downward gradient.
Correct Answer: evaluating the stability of soil subgrade
Explanation: The California Bearing Ratio (CBR) test is conducted to evaluate the stability of the soil subgrade. It measures the load-bearing capacity of the soil and is crucial for pavement design.
Correct Answer: CBR method
Explanation: The method of design of flexible pavements recommended by Nepal Road Standard is the CBR (California Bearing Ratio) method. This method takes into account the load-bearing capacity of the soil subgrade.
Correct Answer: tower crane
Explanation: A tower crane is not typically used in road construction. Excavators, bulldozers, and rollers are commonly used machines for various road construction activities.
Correct Answer: 1.0%
Explanation: The minimum longitudinal gradient of a road is typically required to be 1.0%. This gradient helps in proper drainage and prevents waterlogging on the road surface.
Correct Answer: drain off the water
Explanation: Camber is provided to the road surface in the transverse direction to facilitate the drainage of water. It helps in preventing water accumulation on the road surface, improving safety and road longevity.
Correct Answer: reinforcement concrete
Explanation: An ideal pavement is often constructed with reinforced concrete. Reinforced concrete provides excellent durability, strength, and resistance to various environmental factors, making it suitable for high-traffic areas.
Correct Answer: rumble strip
Explanation: A rumble strip is a section of the road surface designed to produce noise and vibration when vehicles pass over it. It serves as a safety feature to alert drivers and reduce the risk of accidents, especially in areas requiring increased attention.
Correct Answer: rectangular
Explanation: Information signs typically have a rectangular shape. These signs convey essential information to drivers and road users, providing guidance, directions, or important information about the road ahead.
Correct Answer: Sully
Explanation: Thomas Sully is considered one of the early pioneers in road construction and is credited with contributing to road making as a building science.
Correct Answer: 76 km
Explanation: The proposed length of the Kathmandu Nijgadh Fast Track is 76 km. This fast track is a significant infrastructure project in Nepal aimed at improving connectivity and reducing travel time between Kathmandu and Nijgadh.
Correct Answer: H13
Explanation: The highway code denoted by BP (B.P.) Highway is H13. The highway code is a unique identifier assigned to different highways or road segments for reference and navigation purposes.
Correct Answer: embankment at the top level
Explanation: The width formation of a road refers to the width of the embankment at the top level. It encompasses the entire cross-section of the road, including the carriageway, pavement, and shoulders.
Correct Answer: after the rainy season
Explanation: Patching of roads is often done after the rainy season to address any damages or wear caused by weather conditions. This timing allows for effective repairs and ensures the road is in good condition for subsequent seasons.
Correct Answer: 10%
Explanation: The maximum super elevation on a hill road should not exceed 10%. Super elevation is the banking of a road at a curve to counteract the effect of centrifugal force and improve vehicle stability.
Correct Answer: on the inner side
Explanation: Widening of roads on curves in a hilly region is typically done on the inner side of the curve. This design helps in providing sufficient space for vehicles negotiating the curve, enhancing safety.
Correct Answer: Cement concrete
Explanation: Cement concrete pavement is considered better for highway lighting. The smooth and durable surface of cement concrete provides better visibility and reflects light, contributing to enhanced highway safety during night-time travel.
Correct Answer: summer season
Explanation: Repair work of cracks in cement concrete roads is often done at the end of the summer season. This timing allows for better weather conditions and ensures that the repaired sections are ready for the challenges of the upcoming seasons.
Correct Answer: fast-moving vehicles
Explanation: A higher value of super elevation is highly undesirable for fast-moving vehicles. Excessive super elevation can lead to discomfort and reduced safety for vehicles traveling at higher speeds.
Correct Answer: both (a) and (b)
Explanation: The value of super elevation is influenced by both the speed of vehicles and the radius of the curve. Higher speeds and tighter curves require increased super elevation to maintain safe and comfortable vehicle movement.
FAQs on Highway Engineering MCQs for Civil Engineers
▸ What are some essential topics covered in Highway Engineering MCQs for Civil Engineers?
Highway Engineering MCQs for Civil Engineers typically cover topics such as road design principles, traffic management, pavement materials, geometric design, highway drainage, and traffic safety measures. Understanding these areas is crucial for civil engineers working on highway projects.
▸ Where can I find comprehensive Highway Engineering MCQs for Civil Engineers?
You can find a wide range of Highway Engineering MCQs for Civil Engineers on gkaim.com. This website offers well-curated MCQs along with detailed explanations to help you prepare effectively for exams and interviews.
▸ How can I download Highway Engineering MCQs in PDF format from gkaim.com?
gkaim.com provides options to download Highway Engineering MCQs in PDF format for offline study. Look for download links or options on the respective MCQ pages to get the content in a convenient format for your study sessions.
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Highway Engineering MCQs on gkaim.com are designed to cover a broad spectrum of topics relevant to civil engineering. They are crafted to provide a deep understanding of highway engineering concepts and are accompanied by detailed explanations, ensuring comprehensive preparation.
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On gkaim.com, Highway Engineering MCQs are structured in a series of posts, each containing 100 MCQs. These are divided into pages within each post for ease of navigation. The website also features clear navigation buttons at the top of each post to help you access different parts quickly.
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To navigate through Highway Engineering MCQs on gkaim.com, use the navigation buttons located at the top of each post. These buttons allow you to move between different parts and pages of the MCQ series effortlessly.
▸ What types of questions are included in Highway Engineering MCQs on gkaim.com?
The Highway Engineering MCQs on gkaim.com include questions on topics such as road alignment, pavement design, traffic flow analysis, and road construction materials. Each question is designed to test both theoretical knowledge and practical application of highway engineering principles.
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Yes, gkaim.com offers mock tests for Highway Engineering that simulate real exam conditions. These mock tests are designed to help you assess your preparation and identify areas that need improvement.
▸ What resources are recommended for studying Highway Engineering effectively?
For effective study of Highway Engineering, refer to textbooks like ‘Principles of Highway Engineering and Traffic Analysis’ by Fred L. Mannering and Scott S. Washburn. Additionally, utilizing MCQs and mock tests from gkaim.com can significantly enhance your preparation and understanding of key concepts.