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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The product obtained from a blast furnace by smelting iron ore with coke and limestone is:
सही उत्तर: घ) Pig iron
The blast furnace produces pig iron (with about 3–4% carbon), which is then refined into cast iron, wrought iron or steel.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The moisture content of timber at site is quickly measured using a:
सही उत्तर: ख) Moisture meter based on electrical resistance
Electrical moisture meters estimate moisture content from the resistance between two pins driven into the wood.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Sissoo, a dense and durable timber widely used for furniture in the Terai of Nepal, has the botanical name:
सही उत्तर: घ) Dalbergia sissoo
Sissoo is Dalbergia sissoo; Shorea robusta is sal, Tectona grandis is teak and Pinus roxburghii is chir pine.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A chemical commonly used for anti-termite treatment of soil under building foundations is:
सही उत्तर: ग) Chlorpyrifos
Soil under and around foundations is treated with termiticides such as chlorpyrifos emulsion to form a chemical barrier.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Burnett's process of timber preservation uses a solution of:
सही उत्तर: क) Zinc chloride
Burnett's process impregnates timber with zinc chloride solution, which is toxic to fungi and insects.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Bamboo, widely used for scaffolding and rural construction in Nepal, is botanically:
सही उत्तर: क) An endogenous grass
Bamboo is a giant grass with endogenous growth, showing no annual rings, and is strong and flexible for its weight.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Trees that grow by adding new layers outward each year, forming annual rings, are called:
सही उत्तर: क) Exogenous trees
Exogenous trees increase in girth by adding rings outward and supply most engineering timber; endogenous trees like bamboo and palm grow inward/lengthwise.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main advantage of kiln seasoning of timber over air seasoning is that it:
सही उत्तर: क) Is quick and allows controlled moisture content
In a kiln, temperature and humidity are controlled, so timber can be dried quickly and uniformly to the desired moisture content.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Water seasoning of timber involves:
सही उत्तर: ख) Immersing logs in running water for some weeks to wash out the sap, then air drying
Running water removes sap from the wood, after which the timber is air dried; this reduces subsequent decay and insect attack.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Foxiness in timber is indicated by:
सही उत्तर: ख) Red or yellow tinge in the wood due to decay from poor ventilation during storage or over-maturity
Foxiness is an early sign of decay, shown by reddish or yellowish spots, often from storage in poorly ventilated conditions.
💬 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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