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 amount of cement required for 1 m³ of 1:4 cement-sand mortar, taking dry volume factor 1.30 and cement density 1440 kg/m³, is about:
सही उत्तर: घ) 374 kg
Cement volume = 1.30 × 1/5 = 0.26 m³; mass = 0.26 × 1440 ≈ 374 kg (about 7.5 bags).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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To prepare 1 m³ of wet cement mortar, the dry volume of materials taken is usually increased by about:
सही उत्तर: घ) 27% to 33%
Dry volume is taken about 1.27–1.33 times the wet volume to account for voids filled when water is added.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For ordinary brick masonry, a commonly used cement-sand mortar ratio is:
सही उत्तर: क) 1 : 6
1:6 cement-sand mortar is common for general brickwork; richer mixes like 1:4 are used for load-bearing or exposed work.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ordinary window glass (soda-lime glass) is made mainly from silica, soda and:
सही उत्तर: घ) Lime
Soda-lime glass is made by fusing silica sand, soda ash and lime; lead glass and borosilicate glass use lead oxide and boric oxide.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Distemper is a paint in which the vehicle is generally:
सही उत्तर: ख) Water with glue/size
Distemper consists of whiting or chalk, pigment and glue size mixed in water; it is a water-bound paint.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For OPC concrete, the 7-day compressive strength is generally about what fraction of its 28-day strength?
सही उत्तर: ग) About 65% to 70%
OPC concrete typically achieves roughly two-thirds (65–70%) of its 28-day strength in 7 days.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Tempering of brick earth is commonly carried out in a:
सही उत्तर: घ) Pug mill
A pug mill kneads and tempers clay with water to a uniform plastic mass before moulding.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The modulus of elasticity of mild steel is approximately:
सही उत्तर: ख) 2 × 10⁵ N/mm²
Es ≈ 200,000 N/mm² (200 GPa) for steel.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Cast iron is weak in:
सही उत्तर: ग) Tension
Cast iron is brittle with high compressive but low tensile strength.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Mild steel generally contains carbon in the range of about:
सही उत्तर: घ) 0.15% to 0.25%
Mild steel is a low-carbon steel (about 0.15–0.25% C); cast iron has 2–4.5% carbon.
💬 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।
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