सडक तथा यातायात इन्जिनियरिङ – Highway & Transportation MCQ
सडक तथा यातायात इन्जिनियरिङ – सिभिल इन्जिनियरिङ
Highway & Transportation · Civil Engineering · ४०३ प्रश्न
४०३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सडक तथा यातायात इन्जिनियरिङ: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Medium curing (MC) cutback bitumen is prepared by blending bitumen with:
सही उत्तर: ग) Kerosene
RC cutbacks use petrol/naphtha, MC cutbacks use kerosene and SC (slow curing) cutbacks use high-boiling oils.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the standard penetration test of bitumen, the needle load, duration and temperature are:
सही उत्तर: घ) 100 g, 5 seconds, 25 °C
Penetration is the depth in tenths of a mm that a standard needle penetrates under 100 g for 5 s at 25 °C.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The stripping value test of aggregates is used to evaluate:
सही उत्तर: घ) The loss of bitumen coating from aggregates in the presence of water
Bitumen-coated aggregates are immersed in water at 40 °C; the percentage of uncoated surface shows the tendency to strip.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The soundness test on road aggregates, using sodium or magnesium sulphate solutions, evaluates their resistance to:
सही उत्तर: ग) Weathering action
Repeated soaking in sulphate and drying simulates weathering (freeze-thaw, wetting-drying); weight loss indicates unsoundness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The elongation index of aggregates is the percentage by weight of particles whose greatest dimension is more than:
सही उत्तर: क) 1.8 times their mean dimension
Elongated particles have length more than 1.8 times the mean dimension; flaky particles have thickness less than 0.6 times the mean dimension.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The angularity number of road aggregates generally ranges from:
सही उत्तर: ख) 0 for well-rounded gravel to about 11 for highly angular aggregate
Angularity number = 67 − percentage of solid volume in a standard cylinder; rounded gravel has about 33% voids (number 0) and angular aggregate up to about 11.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In traffic signal design, a 'phase' refers to:
सही उत्तर: घ) The part of the cycle allocated to a set of non-conflicting movements
Each phase gives right of way to a combination of movements that do not conflict; the cycle is the sum of all phases.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In parking studies, 'parking turnover' is defined as the:
सही उत्तर: ग) Number of vehicles using a parking space in a given period divided by the number of spaces
Turnover = vehicles parked during the study period/number of bays; accumulation is the number parked at a given instant.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Channelisation at an at-grade intersection means:
सही उत्तर: क) Guiding traffic into definite paths using islands and markings to reduce conflict areas
Traffic islands and markings separate and direct streams, reduce the area of conflict and control angles and speeds of merging.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A cloverleaf interchange is a type of:
सही उत्तर: घ) Grade-separated intersection for four-leg junctions
The full cloverleaf eliminates all crossing conflicts at a four-leg junction using loops and ramps; the trumpet suits three-leg junctions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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