इन्जिनियरिङ सेवा असिस्टेन्ट सब-इन्जिनियर (चौथो तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – असिस्टेन्ट सब-इन्जिनियर (चौथो तह)
Assistant Sub-Engineer – 4th 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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An angle is observed as 30°20'10" with weight 2 and as 30°20'16" with weight 1. The weighted mean value is:
सही उत्तर: ख) 30°20'12"
Weighted mean of seconds = (2×10 + 1×16)/3 = 36/3 = 12", giving 30°20'12".
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An angle is measured 9 times, and the standard deviation of a single observation is 6 seconds. The standard error of the mean is:
सही उत्तर: ग) 2 seconds
Standard error of mean = σ/√n = 6/√9 = 2 seconds.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a set of observations of equal weight of the same quantity, the most probable value is the:
सही उत्तर: घ) Arithmetic mean
When all observations are equally reliable, their arithmetic mean is the most probable value.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Errors that arise from carelessness, such as reading 6 for 9 or omitting a whole chain length, are called:
सही उत्तर: ख) Mistakes (blunders)
Mistakes result from carelessness or inexperience and must be detected by checks, not corrected by formulas.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Accidental (random) errors in surveying are also called compensating errors because they:
सही उत्तर: क) Tend to be positive and negative equally and partly cancel each other
Random errors are equally likely to be plus or minus, so they partially compensate; systematic errors accumulate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A basic principle of surveying is that a new point should be located by measurements from at least:
सही उत्तर: ग) Two points of reference already fixed
A point is fixed by measurements (distances or angles) from two known reference points, e.g. by two ties or a distance and angle.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A preliminary inspection of the area to be surveyed, to plan the survey and select stations, is called:
सही उत्तर: ग) Reconnaissance
Reconnaissance is the initial examination of the site to decide the survey scheme and station positions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The absolute position (latitude, longitude) of a station determined by observing celestial bodies is the subject of:
सही उत्तर: घ) Astronomical surveying
Astronomical surveys fix absolute positions and azimuths by observations of the sun and stars.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A survey that shows natural and artificial features of an area together with its relief (usually by contours) is a:
सही उत्तर: ग) Topographic survey
Topographic surveys depict features such as rivers, roads and buildings as well as ground relief.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A survey carried out mainly to fix property boundaries and prepare maps for land ownership and revenue records is a:
सही उत्तर: ख) Cadastral survey
Cadastral surveys determine and record property boundaries, areas and ownership for land administration.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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