इन्जिनियरिङ सेवा असिस्टेन्ट सब-इन्जिनियर (चौथो तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – असिस्टेन्ट सब-इन्जिनियर (चौथो तह)
Assistant Sub-Engineer – 4th Level · Engineering Service
१,५०३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
प्राविधिक पत्र: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ५ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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'Rind galls' in timber are:
सही उत्तर: ग) Curved swellings formed where branches were improperly cut off and the wound later grew over
Rind galls develop as the tree grows over wounds left by broken or badly cut branches, producing weak spots.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Twisted fibres (wandering heart) in timber are mainly caused by:
सही उत्तर: ख) Twisting of the young tree by strong prevailing winds
Wind constantly twisting the young tree makes the fibres spiral, so the timber cannot be sawn without cutting across the fibres.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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'Upsets' in timber are defects caused by:
सही उत्तर: क) Crushing of fibres across the grain due to improper felling or shock in the growing tree
Upsets (rupture) result from fibres being crushed, often by careless felling or impact, weakening the timber.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A wane in sawn timber is a defect in which:
सही उत्तर: घ) Part of the original rounded surface (bark) remains on the edge of the piece
Wane occurs when a piece is cut too close to the outside of the log, leaving a bevelled or bark-covered edge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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CGI sheets, widely used for roofing in Nepal, are:
सही उत्तर: घ) Corrugated galvanised iron (steel) sheets
CGI stands for corrugated galvanised iron: steel sheets coated with zinc and corrugated for stiffness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main health hazard associated with handling and cutting asbestos cement products is:
सही उत्तर: ख) Inhaling fibres, which can cause asbestosis and lung cancer
Airborne asbestos fibres lodge in the lungs, causing asbestosis, mesothelioma and lung cancer, which is why its use is restricted.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is commonly used as a thermal insulating material in buildings?
सही उत्तर: क) Expanded polystyrene
Materials with many trapped air cells, such as expanded polystyrene and glass wool, have low thermal conductivity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Gypsum board (plasterboard) consists of:
सही उत्तर: ख) A core of set gypsum faced on both sides with paper
Plasterboard has a gypsum core between paper liners and is used for partitions and false ceilings.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Terrazzo flooring consists of:
सही उत्तर: ख) Marble chips set in cement mortar, ground and polished
Terrazzo is a mix of marble chips and cement (often coloured) laid, cured and then ground and polished to a smooth surface.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Keene's cement, used for high-quality smooth plaster, is made by:
सही उत्तर: क) Calcining gypsum, soaking it in alum solution and re-calcining at high temperature
Keene's cement is an anhydrous gypsum plaster produced by heating gypsum, treating it with alum and reheating; it sets slowly to a very hard white finish.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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