इन्जिनियरिङ सेवा सब-इन्जिनियर (पाँचौँ तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – सब-इन्जिनियर (पाँचौँ तह)
Sub-Engineer – 5th 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 most commonly used oil-type preservative for timber is:
सही उत्तर: ग) Creosote oil
Creosote, a coal-tar product, is toxic to fungi and insects and widely used to preserve timber.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Timber has its maximum strength when loaded in:
सही उत्तर: क) Tension parallel to the grain
Wood fibres are strongest when pulled along their length.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The botanical name of Sal, a widely used timber in Nepal, is:
सही उत्तर: घ) Shorea robusta
Sal is Shorea robusta; Tectona grandis is teak and Dalbergia sissoo is sisau.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Plywood is made by gluing thin veneers with:
सही उत्तर: घ) Grains of adjacent layers at right angles to each other
Crossing the grain of alternate veneers gives plywood nearly equal strength in both directions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Dry rot in timber is caused by:
सही उत्तर: ख) Fungi
Dry rot is fungal decay that turns timber into a dry powdery mass.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The age of a tree can be estimated by counting its:
सही उत्तर: क) Annual rings
One annual ring is generally formed each year of growth.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which part of the cross-section of a tree is the most durable and provides the strongest timber?
सही उत्तर: ख) Heartwood
Heartwood is the dead, dark inner portion that is harder and more durable than sapwood.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main object of seasoning of timber is to:
सही उत्तर: क) Reduce its moisture content
Seasoning removes moisture so timber becomes stable, stronger and less prone to decay.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main purpose of providing a frog in a brick is to:
सही उत्तर: क) Form a key for mortar and reduce the weight of the brick
The frog holds mortar to form a key between courses and also reduces the brick's weight.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Excess of which constituent in brick earth causes the bricks to melt and lose their shape during burning?
सही उत्तर: ख) Lime
Excess lime causes bricks to melt and distort during burning.
💬 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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