निर्माण सामग्री – Construction Materials MCQ
निर्माण सामग्री – सिभिल इन्जिनियरिङ
Construction Materials · Civil Engineering · १,००८ प्रश्न
१,००८ प्रश्न उपलब्ध। मोड छान्नुहोस्:
निर्माण सामग्री: 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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In stone masonry walls, a 'through stone' (bond stone) is provided mainly to:
सही उत्तर: ग) Bind the two faces of the wall together by extending through its full thickness
Through stones run across the full thickness and tie the inner and outer faces, preventing the wall from splitting into two leaves.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Stone masonry in which stones of irregular shapes and sizes are laid without forming regular horizontal courses is called:
सही उत्तर: ख) Random rubble masonry
In random rubble masonry, undressed or roughly dressed stones are laid without regular courses.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Hollow and solid concrete masonry blocks are specified in the Indian Standard:
सही उत्तर: क) IS 2185
IS 2185 covers concrete masonry units (hollow and solid blocks).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A brick weighs 3.00 kg when oven dry and 3.45 kg after 24 hours of immersion in water. Its water absorption is:
सही उत्तर: ग) 15%
Water absorption = (3.45 − 3.00)/3.00 × 100 = 15% of the dry weight.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the Indian Standard classification of common burnt clay bricks (IS 1077), a brick designated 'Class 10' has:
सही उत्तर: ख) An average compressive strength of not less than 10 N/mm²
The class designation of IS 1077 bricks is the minimum average compressive strength in N/mm².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 150 mm concrete cube fails at a load of 675 kN. Its compressive strength is:
सही उत्तर: ख) 30 N/mm²
Strength = 6,75,000 N / (150 × 150 = 22,500 mm²) = 30 N/mm².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In rammed earth construction:
सही उत्तर: क) Moist soil is compacted in layers within formwork to build solid walls
Rammed earth walls are formed by ramming damp soil (often stabilised) in successive layers inside shuttering.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Adobe is a building material consisting of:
सही उत्तर: घ) Sun-dried blocks of mud mixed with straw or other fibres
Adobe bricks are moulded from earth and dried in the sun without firing.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a fire, which structural material loses a large part of its strength at temperatures of about 500 to 600°C and therefore needs fire protection?
सही उत्तर: ग) Structural steel
Steel loses roughly half of its yield strength at about 550 to 600°C, so exposed steel members are protected by casing or coatings.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Porcelain differs from earthenware in that porcelain is:
सही उत्तर: ख) Fully vitrified, dense, non-porous and usually white and translucent
Porcelain is fired at high temperature from fine clays to full vitrification, while earthenware remains porous.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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