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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A major limitation of plane table surveying is that it:
सही उत्तर: क) Is unsuitable in wet or windy weather and in thickly wooded country
Since plotting is done on paper in the field, rain, wind and dense vegetation seriously hamper plane tabling.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In resection by plane table, when the back rays from three known points do not meet at one point, the small triangle formed is called the:
सही उत्तर: क) Triangle of error
The triangle of error indicates incorrect orientation; it is removed by trial (e.g. Lehmann's rules) until the rays meet at a point.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 'two-point problem' in plane tabling is to locate the station occupied by the plane table from:
सही उत्तर: ग) Two visible, already plotted points, using an auxiliary station
With only two known points visible, an auxiliary station is used to obtain the correct orientation and position.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In stadia tacheometry with an inclined line of sight θ and a vertical staff, the vertical component V is given by:
सही उत्तर: क) V = ½ Ks sin 2θ + C sin θ
The vertical component is V = ½ Ks sin 2θ + C sin θ, while the horizontal distance is Ks cos²θ + C cos θ.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Tacheometric surveying is particularly suitable for:
सही उत्तर: घ) Rough, hilly or broken ground where chaining is difficult
Tacheometry obtains distances and elevations optically, avoiding slow and inaccurate chaining over obstacles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the tangential method of tacheometry, distance and elevation are found by:
सही उत्तर: घ) Measuring vertical angles to two vanes a known distance apart on the staff
The tangential method does not use stadia hairs; two vertical angles to targets at known spacing give distance and height.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the subtense bar method of tacheometry using a 2 m bar, the horizontal angle subtended is 0.01 radian. The horizontal distance is about:
सही उत्तर: ख) 200 m
D = (s/2) cot(θ/2) = 1 × cot(0.005) ≈ 200 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In compass traversing, the 'free needle' method means that:
सही उत्तर: घ) The bearing of each line is observed directly with respect to the magnetic meridian at every station
In the free needle method the needle is free at every station, so magnetic bearings of lines are read independently.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a closed traverse, if the length and bearing of one line could not be measured, they can be computed because:
सही उत्तर: ग) The algebraic sums of latitudes and of departures of a closed traverse must each be zero
Using ΣL = 0 and ΣD = 0, the latitude and departure of the missing line, and hence its length and bearing, can be found.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The latitude and departure of a traverse line, giving the coordinates of its end relative to its start, are called:
सही उत्तर: घ) Consecutive coordinates
Consecutive coordinates refer each point to the preceding point; independent coordinates refer all points to a common origin.
💬 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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