इन्जिनियरिङ सेवा सिभिल इन्जिनियर (सातौँ तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – सिभिल इन्जिनियर (सातौँ तह)
Civil Engineer – 7th Level · Engineering Service
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 combined correction for curvature and refraction over a distance of 3 km is approximately:
सही उत्तर: क) 0.606 m (subtractive)
Combined correction = 0.0673 D² = 0.0673 × 9 ≈ 0.606 m, and it is subtractive.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The correction for curvature of the earth in metres, for a distance D in kilometres, is:
सही उत्तर: ख) 0.0785 D²
Curvature correction = D²/2R ≈ 0.0785 D² m with D in km.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Error due to imperfect adjustment of the line of collimation in levelling is eliminated by:
सही उत्तर: ग) Keeping back sight and fore sight distances equal
With equal BS and FS distances the collimation error is the same on both readings and cancels.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The arithmetic check in the height of instrument method is:
सही उत्तर: घ) ΣBS − ΣFS = Last RL − First RL
In the collimation method only BS and FS are checked: ΣBS − ΣFS = Last RL − First RL.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which method of reducing levels provides a check on intermediate sights also?
सही उत्तर: क) Rise and fall method
In the rise and fall method, ΣRise − ΣFall = Last RL − First RL checks every reading, including intermediate sights.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In levelling, a change (turning) point is a point at which:
सही उत्तर: ख) Both a fore sight and a back sight are taken
At a change point the fore sight is taken before shifting the level and a back sight after it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A permanent reference point of known reduced level, established by a survey department, is called a:
सही उत्तर: ग) Benchmark
A benchmark is a fixed reference point whose reduced level is known.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Lines joining points of equal magnetic declination are called:
सही उत्तर: घ) Isogonic lines
Isogonic lines join places with the same magnetic declination.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The magnetic bearing of a line is 120° and the magnetic declination is 5° West. The true bearing of the line is:
सही उत्तर: क) 115°
True bearing = magnetic bearing − west declination = 120° − 5° = 115°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The fore bearing of a line is 45°. Its back bearing is:
सही उत्तर: ख) 225°
Back bearing = fore bearing ± 180° = 45° + 180° = 225°.
💬 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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