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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Over-burnt, distorted bricks, which are used as aggregate for foundations and roads, are known as:
सही उत्तर: क) Jhama bricks
Jhama bricks are over-burnt and irregular, too ugly for facing work but hard enough for use as aggregate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Abel's process for fire-proofing timber uses a coating of:
सही उत्तर: ख) Sodium silicate followed by lime wash
In Abel's process timber is coated with dilute sodium silicate then lime wash, forming a fire-resistant layer.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The weight per metre length of a steel bar of diameter d (mm) is approximately:
सही उत्तर: घ) d²/162 kg
Weight per metre = (π/4)d² × 10⁻⁶ × 7850 ≈ d²/162 kg.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The approximate density (unit weight) of steel is:
सही उत्तर: घ) 7850 kg/m³
Steel's density is about 7850 kg/m³; 2400 is concrete, 1440 cement, 11300 lead.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ideal moisture content of seasoned timber for general building work is about:
सही उत्तर: ख) 10% to 12%
Well-seasoned timber for building purposes typically has around 10–12% moisture content.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Plywood normally has an odd number of plies because:
सही उत्तर: ग) It keeps the construction balanced so that the board does not warp
With an odd number of plies, the layers are symmetric about the central ply, balancing stresses and preventing warping.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Plywood is made by gluing thin veneers so that the grain of adjacent layers is:
सही उत्तर: घ) At right angles to each other
Cross-laminating veneers at right angles gives plywood dimensional stability and strength in both directions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ASCU preservative used for timber is a mixture of copper sulphate, arsenic pentoxide and:
सही उत्तर: क) Sodium or potassium dichromate
ASCU (Ascu) consists of arsenic pentoxide, copper sulphate and sodium/potassium dichromate dissolved in water.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Cracks in timber that partly or wholly separate the fibres, radiating from the centre, are called:
सही उत्तर: क) Star shakes
Star shakes radiate from the centre toward the bark, usually due to shrinkage or frost.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fly ash bricks are manufactured mainly from fly ash mixed with:
सही उत्तर: ग) Lime or cement, sand and water
Fly ash bricks are made by pressing fly ash with lime/cement, sand and water, followed by curing.
💬 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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