नेपाल व्यावसायिक लाइसेन्स नेपाल इन्जिनियरिङ काउन्सिल लाइसेन्स तयारी
नेपाल व्यावसायिक लाइसेन्स – नेपाल इन्जिनियरिङ काउन्सिल लाइसेन्स
NEC License Exam · Nepal Professional License Exams
२,४१४ प्रश्न उपलब्ध। मोड छान्नुहोस्:
लाइसेन्स परीक्षा: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The long chord of a simple circular curve of radius R and deflection angle Δ is:
सही उत्तर: क) 2R sin(Δ/2)
The long chord subtends Δ at the centre, so its length is 2R sin(Δ/2); R(1 − cos(Δ/2)) is the mid-ordinate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For stereoscopic coverage in aerial photogrammetry, the forward (longitudinal) overlap between successive photographs is normally about:
सही उत्तर: ख) 60%
A forward overlap of about 60% and side overlap of about 25-30% are normally specified so that every point appears in at least two photographs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The slope correction for a length L measured along a uniform slope, where h is the difference in height between its ends, is approximately:
सही उत्तर: ख) h²/(2L), subtractive
Horizontal length = √(L² − h²) ≈ L − h²/(2L), so the correction h²/(2L) is subtracted.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The correction for sag of a tape of length L and weight w per unit length, suspended between two supports under a pull P, is:
सही उत्तर: ग) w²L³/(24P²), always subtractive
A sagging tape records a length greater than the chord, so the sag correction Cs = w²L³/(24P²) is always negative.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 'two-peg test' on a dumpy level is carried out to check whether:
सही उत्तर: घ) The line of collimation is parallel to the axis of the bubble tube
Readings on two pegs from a midpoint and from near one peg reveal any collimation error, i.e. the line of sight not being horizontal when the bubble is central.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Blaney-Criddle method is used to estimate:
सही उत्तर: क) Consumptive use (evapotranspiration) of crops
Blaney-Criddle relates consumptive use to mean temperature and percentage of daytime hours with a crop coefficient.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In river training works, groynes (spurs) are structures that:
सही उत्तर: क) Project from the bank into the river to deflect the current away from the bank
Groynes are built transverse to the flow from the bank to keep the main current away and encourage silting near the bank.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A structure built across a canal to raise and control the water level upstream so that off-taking channels can draw their supply is a:
सही उत्तर: ख) Cross regulator
A cross regulator controls the water level in the parent canal; the head regulator at the off-take controls the flow into the branch.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A canal outlet whose discharge remains constant within limits, independent of the water levels in both the distributary and the watercourse, is a:
सही उत्तर: ग) Rigid module
A rigid module gives a constant discharge regardless of upstream and downstream levels; a semi-module is independent only of the watercourse level.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The first watering given to a crop after it has grown a few centimetres high, which usually governs canal design capacity, is called:
सही उत्तर: घ) Kor watering
Kor watering is the first watering after sowing when the plants are a few centimetres high; the kor depth and period fix the outlet discharge.
💬 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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