सिभिल इन्जिनियरिङ
सिभिल इन्जिनियरिङ
Civil Engineering · ५,१७१ प्रश्न
५,१७१ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सिभिल 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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The Los Angeles abrasion test on coarse aggregate determines its:
सही उत्तर: ख) Hardness (resistance to wear)
Aggregates are tumbled with steel balls in the Los Angeles machine; percentage wear indicates hardness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Vitrified tiles are preferred for flooring mainly because they have:
सही उत्तर: ख) Very low water absorption and high strength
Vitrified tiles are fired at high temperature to a glass-like body, giving very low water absorption and good strength.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Refractory bricks, used to line furnaces and chimneys, are made mainly from:
सही उत्तर: क) Fire clay
Fire clay bricks withstand very high temperatures because fire clay is rich in silica and alumina with few fluxes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fineness modulus of an aggregate is calculated as:
सही उत्तर: घ) Sum of cumulative percentages retained on the standard sieves divided by 100
FM = (sum of cumulative % retained on the standard sieve series) ÷ 100.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The fineness modulus of fine aggregate suitable for most concrete works lies roughly between:
सही उत्तर: ग) 2.2 and 3.2
Medium sand used in concrete typically has fineness modulus about 2.2–3.2; coarse aggregate values are around 5.5–8.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Bulking of sand is maximum at a moisture content of about:
सही उत्तर: क) 4% to 6%
Bulking peaks (up to 20–40%) at about 4–6% moisture; fully saturated sand shows virtually no bulking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A hard burnt clay product, glazed or unglazed, used for ornamental work in buildings is called:
सही उत्तर: क) Terracotta
Terracotta is a fine burnt clay product used for decorative and ornamental elements.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The unit weight of plain cement concrete commonly used in design is about:
सही उत्तर: ग) 24 kN/m³
Plain concrete weighs about 24 kN/m³ (reinforced concrete about 25 kN/m³); 78.5 kN/m³ is steel.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Hydraulic lime differs from fat lime in that it:
सही उत्तर: घ) Contains clay impurities and can set under water
Hydraulic lime contains clay (silica, alumina) that lets it set by hydration even under water; fat lime is pure and slakes vigorously.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fat lime sets and hardens mainly by:
सही उत्तर: ग) Absorbing carbon dioxide from the air
Fat lime is non-hydraulic; it hardens slowly by carbonation, absorbing CO2 from the atmosphere.
💬 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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