Highway Engineering: Comprehensive Set 02

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Highway Engineering Set 2 | Science Stoppers

Highway Engineering: Comprehensive Set 02

30 Advanced Questions for JE/AE Level | ScienceStoppers.com

1. The “Saturation System” or “Maximum Utility Principle” for road planning was advocated by: सड़क योजना के लिए “संतृप्ति प्रणाली” या “अधिकतम उपयोगिता सिद्धांत” किसके द्वारा प्रतिपादित किया गया था?
  • A) Jayakar Committee
  • B) Nagpur Road Plan
  • C) IRC
  • D) CRRI
Correct: B. This principle suggests that road priority should be given to projects that connect the maximum population with the least road length.
2. The “Desire Lines” in traffic engineering are used for: ट्रैफिक इंजीनियरिंग में “डिज़ायर लाइन्स” का उपयोग किसके लिए किया जाता है?
  • A) Origin and Destination studies
  • B) Spot speed studies
  • C) Traffic volume count
  • D) Accident analysis
Correct: A. Desire lines are straight lines connecting origin and destination points, with thickness representing the number of trips.
3. The maximum super-elevation in snow-bound hilly areas is restricted to: बर्फ से ढके पहाड़ी क्षेत्रों में अधिकतम सुपर-एलिवेशन को कितने तक सीमित किया गया है?
  • A) 4%
  • B) 7%
  • C) 10%
  • D) 15%
Correct: B. While normal hilly areas allow 10%, snow-bound areas are restricted to 7% to prevent slow-moving vehicles from sliding inward on slippery ice.
4. The distance between two consecutive vehicles from rear bumper to rear bumper is: पीछे के बम्पर से पीछे के बम्पर तक दो लगातार वाहनों के बीच की दूरी क्या है?
  • A) Space Headway
  • B) Time Headway
  • C) Clearance
  • D) Gap
Correct: A. Space headway includes the length of the vehicle.
5. For a given speed $V$ (kmph) and radius $R$, the “Shift” of a transition curve is: किसी गति $V$ और त्रिज्या $R$ के लिए, ट्रांज़िशन कर्व का “शिफ्ट” (Shift) है:
  • A) $L^2 / 24R$
  • B) $L / 24R$
  • C) $L^2 / 6R$
  • D) $L^2 / 12R$
Correct: A. The shift is required to accommodate the transition curve between the tangent and the circular curve.
6. A “Ductility Test” on bitumen is conducted at what temperature? बिटुमेन पर “डक्टिलिटी टेस्ट” किस तापमान पर किया जाता है?
  • A) 20°C
  • B) 27°C
  • C) 35°C
  • D) 50°C
Correct: B. Standard temperature is 27°C and the pulling rate is 50 mm/min.
7. “Setback Distance” at a horizontal curve depends on: क्षैतिज मोड़ पर “सेटबैक दूरी” (Setback Distance) किस पर निर्भर करती है?
  • A) Sight distance
  • B) Radius of curve
  • C) Length of curve
  • D) All of the above
Correct: D. It is the clearance required from the centerline of the curve to an obstruction to ensure visibility.
8. In a “Marshall Stability Test”, the specimen is tested at: “मार्शल स्टेबिलिटी टेस्ट” में, नमूने का परीक्षण किस पर किया जाता है?
  • A) 25°C
  • B) 60°C
  • C) 100°C
  • D) Room temperature
Correct: B. 60°C represents the maximum pavement temperature during summer.
9. “Westergaard’s Theory” is used for the analysis of: “वेस्टरगार्ड के सिद्धांत” का उपयोग किसके विश्लेषण के लिए किया जाता है?
  • A) Flexible pavements
  • B) Rigid pavements
  • C) Subgrade compaction
  • D) Bituminous mixes
Correct: B. It is used to determine stresses in concrete slabs based on the modulus of subgrade reaction.
10. The maximum thickness of “Seal Coat” is: “सील कोट” (Seal Coat) की अधिकतम मोटाई क्या होती है?
  • A) 2 mm
  • B) 20 mm
  • C) 50 mm
  • D) 6 mm
Correct: D. Seal coat is a very thin surface treatment to waterproof the pavement.
11. “PCU” value for a Cycle is: साइकिल के लिए “PCU” मान क्या है?
  • A) 1.0
  • B) 0.5
  • C) 0.2
  • D) 3.0
Correct: B. PCU (Passenger Car Unit) helps convert heterogeneous traffic into a single unit. Car=1.0, Cycle=0.5, Truck=3.0.
12. The “Radius of Relative Stiffness” ($l$) in rigid pavements is proportional to $h$ (thickness) as: रिजिड पेवमेंट में “सापेक्ष कठोरता की त्रिज्या” ($l$) मोटाई $h$ के किस रूप में समानुपाती होती है?
  • A) $h^{1/2}$
  • B) $h^3$
  • C) $h^{3/4}$
  • D) $h^2$
Correct: C. Formula: $l = [\frac{Eh^3}{12k(1-\mu^2)}]^{1/4}$.
13. In “CBR Test”, the standard load for 2.5 mm penetration is: “CBR टेस्ट” में 2.5 मिमी पेनेट्रेशन के लिए मानक भार क्या है?
  • A) 1370 kg
  • B) 2055 kg
  • C) 70 kg/cm²
  • D) 1000 kg
Correct: A. For 5.0 mm penetration, it is 2055 kg.
14. “Benkelman Beam” method is used for: “बेन्कलमैन बीम” विधि का उपयोग किसके लिए किया जाता है?
  • A) Design of new pavements
  • B) Evaluation of overlay thickness
  • C) Measurement of skid resistance
  • D) Sieve analysis
Correct: B. It measures the elastic deflection of flexible pavements to determine if an overlay is needed.
15. “Scabbling” of pavement is: पेवमेंट की “स्कैबलिंग” (Scabbling) क्या है?
  • A) Development of cracks
  • B) Roughening the surface
  • C) Removal of loose particles
  • D) Filling of potholes
Correct: B. It involves mechanical treatment to remove a thin layer to restore skid resistance or level the surface.
16. The width of “Weaving Section” in a rotary is: एक रोटरी में “वीविंग सेक्शन” (Weaving Section) की चौड़ाई क्या होती है?
  • A) $(e_1 + e_2) / 2 + 3.5m$
  • B) $w = \frac{e_1+e_2}{2} + 3.0m$
  • C) Average lane width
  • D) Radius of rotary
Correct: B. Where $e_1$ is entry width and $e_2$ is width of non-weaving section.
17. “Flash and Fire Point” test on bitumen indicates: बिटुमेन पर “फ्लैश और फायर पॉइंट” टेस्ट क्या इंगित करता है?
  • A) Volatility
  • B) Safety during heating
  • C) Purity
  • D) Viscosity
Correct: B. It determines the safe temperature to which bitumen can be heated without catching fire.
18. The “Valley Curve” is usually designed as a: “वैली कर्व” (Valley Curve) को आमतौर पर किस रूप में डिज़ाइन किया जाता है?
  • A) Square parabola
  • B) Cubic parabola
  • C) Circular curve
  • D) Spiral
Correct: B. Cubic parabola is preferred for valley curves to provide better comfort.
19. If the “Group Index” of a soil is zero, it represents: यदि किसी मिट्टी का “ग्रुप इंडेक्स” शून्य है, तो यह क्या दर्शाता है?
  • A) Very poor subgrade
  • B) Good subgrade
  • C) Medium subgrade
  • D) Rock
Correct: B. Group Index varies from 0 to 20. Higher GI means poorer soil.
20. “Alligator Cracking” in flexible pavements is primarily due to: फ्लेक्सिबल पेवमेंट में “एलीगेटर क्रैकिंग” मुख्य रूप से किसके कारण होती है?
  • A) Temperature variation
  • B) Fatigue failure
  • C) Improper drainage
  • D) Excess bitumen
Correct: B. It is caused by repeated traffic loads (fatigue). It looks like the skin of a crocodile/alligator.
21. The distance between “Main Station” and “Off-ramp” should be: “मेन स्टेशन” और “ऑफ-रैंप” के बीच की दूरी कितनी होनी चाहिए?
  • A) Weaving length
  • B) Sight distance
  • C) SSD
  • D) Braking distance
Correct: A. Sufficient weaving length allows traffic to merge or diverge smoothly.
22. “Bleeding” in bituminous pavement is: बिटुमिनस पेवमेंट में “ब्लीडिंग” (Bleeding) क्या है?
  • A) Loss of aggregates
  • B) Excess bitumen on surface
  • C) Cracks in pavement
  • D) Pot holes
Correct: B. Excess bitumen migrates to the surface in hot weather, making it slippery.
23. For “Water Bound Macadam” (WBM) road, the binding material used is: WBM सड़क के लिए प्रयुक्त बाइंडिंग सामग्री क्या है?
  • A) Bitumen
  • B) Stone dust/screening
  • C) Cement
  • D) Tar
Correct: B. Fine stone screenings and water act as the binder.
24. “Tack Coat” is applied on: “टैक कोट” (Tack Coat) कहाँ लगाया जाता है?
  • A) Soil subgrade
  • B) Existing bituminous surface
  • C) WBM base
  • D) Prime coat
Correct: B. Tack coat is a thin application of low viscosity bitumen on an existing surface to ensure a bond with the new layer.
25. “Webster’s Method” is used for: “वेबस्टर की विधि” (Webster’s Method) का उपयोग किसके लिए किया जाता है?
  • A) Designing road thickness
  • B) Determining signal cycle time
  • C) Speed analysis
  • D) Accident prediction
Correct: B. It provides the optimum signal cycle time to minimize total delay.
26. “Ribbon Development” refers to: “रिबन डेवलपमेंट” (Ribbon Development) का तात्पर्य क्या है?
  • A) Systematic city planning
  • B) Development along highways
  • C) Multi-lane highways
  • D) Bridge design
Correct: B. It is the unplanned expansion of buildings/shops along a road, which often leads to congestion.
27. The shape of a “Warning Sign” in India is: भारत में “चेतावनी चिन्ह” (Warning Sign) का आकार क्या होता है?
  • A) Circular
  • B) Rectangular
  • C) Triangular
  • D) Octagonal
Correct: C. It is an equilateral triangle with the apex pointing upwards.
28. Which test is used to determine the “Stripping Value” of aggregates? एग्रीगेट्स के “स्ट्रिपिंग वैल्यू” को निर्धारित करने के लिए किस परीक्षण का उपयोग किया जाता है?
  • A) Soundness test
  • B) Static Immersion test
  • C) Abrasion test
  • D) Crushing test
Correct: B. It determines the resistance of bituminous-coated aggregates to the action of water.
29. “Mud Pumping” is a common failure in: “मड पंपिंग” (Mud Pumping) किसमें एक सामान्य विफलता है?
  • A) Flexible pavements
  • B) Rigid pavements
  • C) Earth roads
  • D) Gravel roads
Correct: B. Soil slurry is ejected through joints and cracks in concrete pavements due to repeated wheel loads.
30. The “Level of Service” (LOS) of a road is a measure of: सड़क का “लेवल ऑफ सर्विस” (LOS) किसका माप है?
  • A) Structural strength
  • B) Operating conditions/comfort
  • C) Construction cost
  • D) Pavement thickness
Correct: B. LOS ranges from A (best) to F (worst) based on speed, freedom to maneuver, and comfort.

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