इन्जिनियरिङ सेवा सब-इन्जिनियर (पाँचौँ तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – सब-इन्जिनियर (पाँचौँ तह)
Sub-Engineer – 5th Level · Engineering Service
१,९४० 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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In compass surveying, local attraction at a station is detected when:
सही उत्तर: ख) Fore and back bearings of a line differ by other than 180°
In the absence of local attraction, fore and back bearings differ by exactly 180°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The whole circle bearing of a line is 210°. Its reduced (quadrantal) bearing is:
सही उत्तर: क) S 30° W
For WCB between 180° and 270°, RB = S (WCB - 180°) W = S 30° W.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A back sight of 1.250 m is taken on a benchmark of RL 100.000 m, and a fore sight of 2.100 m is taken on point P. The RL of P is:
सही उत्तर: क) 99.150 m
HI = 100.000 + 1.250 = 101.250 m; RL of P = 101.250 - 2.100 = 99.150 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Closely spaced contour lines on a map indicate:
सही उत्तर: क) A steep slope
Small horizontal spacing for the same contour interval means the ground rises steeply.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The fundamental principle of surveying is to work:
सही उत्तर: ग) From whole to part
Working from whole to part localises errors and prevents their accumulation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a concrete mix with water-cement ratio 0.45, the quantity of water required for one 50 kg bag of cement is:
सही उत्तर: ग) 22.5 litres
Water = 0.45 x 50 kg = 22.5 kg, i.e. 22.5 litres.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The soundness of cement is tested using:
सही उत्तर: ख) Le Chatelier apparatus
Le Chatelier apparatus measures expansion of cement, which indicates its soundness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which compound of cement is chiefly responsible for its early strength gain?
सही उत्तर: ख) Tricalcium silicate (C3S)
C3S hydrates rapidly and contributes most of the strength in the first 7 days.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Gypsum is added to cement clinker during grinding mainly to:
सही उत्तर: क) Retard (control) the setting time
Gypsum prevents flash setting by reacting with C3A and so controls the setting time.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per standard specification, the initial setting time of Ordinary Portland Cement should not be less than:
सही उत्तर: क) 30 minutes
OPC must have an initial setting time of at least 30 minutes to allow mixing, transport and placing.
💬 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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