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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The time-dependent increase in strain of concrete under a sustained constant load is called:
सही उत्तर: घ) Creep
Creep is the gradual increase in deformation under sustained stress; shrinkage occurs even without load.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The term TMT in TMT reinforcement bars stands for:
सही उत्तर: घ) Thermo-Mechanically Treated
TMT bars are thermo-mechanically treated: quenched and self-tempered to give a hard outer layer and ductile core.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Superplasticisers are used in concrete mainly to:
सही उत्तर: क) Greatly increase workability or allow a large reduction in water content
Superplasticisers (high-range water reducers) increase workability or permit lower water-cement ratio for higher strength.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which admixture is most useful for concreting in hot weather or for long transport times?
सही उत्तर: क) Retarder
Retarders delay setting, maintaining workability in hot weather and during long hauls.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Galvanising of steel sheets means coating them with:
सही उत्तर: ख) Zinc
Galvanised iron sheets are coated with zinc, which protects the steel from corrosion.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Red lead paint is commonly used as a:
सही उत्तर: क) Priming coat for steel work to resist rusting
Red lead primer protects iron and steel against corrosion and is applied as the first coat.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Varnish is basically a solution of:
सही उत्तर: ग) Resin in oil, spirit or turpentine
Varnish is a transparent coating made by dissolving resins in a solvent such as oil, spirit or turpentine.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Concrete cube specimens for compressive strength tests are usually of size:
सही उत्तर: क) 150 mm × 150 mm × 150 mm
Standard concrete cubes are 150 mm; 70.6 mm cubes are for cement mortar.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Plaster of Paris is obtained by heating gypsum to about:
सही उत्तर: क) 150°C to 170°C
Heating gypsum to roughly 150–170°C removes part of its water of crystallisation, giving plaster of Paris (calcium sulphate hemihydrate).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which material is commonly used as a damp proof course in buildings?
सही उत्तर: घ) Bitumen or bitumen felt
Bituminous materials are impervious to water and are widely used as damp proof courses.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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