सर्भेक्षण – Surveying MCQ
सर्भेक्षण – सिभिल इन्जिनियरिङ
Surveying · Civil Engineering · १,५६५ प्रश्न
१,५६५ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सर्भेक्षण: 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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In levelling, the staffman is often asked to rock the staff slowly towards and away from the instrument. The reading that should be booked is the:
सही उत्तर: ख) Minimum reading observed
When the staff is exactly vertical the reading is least, so the minimum reading while rocking corresponds to a vertical staff.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a 'double line' chain survey field book, the chainages along the survey line are written:
सही उत्तर: क) Between two parallel lines drawn down the middle of the page, which represent the chain line
In the double-line book, the column between two parallel lines represents the chain line and holds the chainages, with offsets recorded on either side.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a small, isolated engineering project, a benchmark whose reduced level is simply assumed (for example 100.000 m) is called a/an:
सही उत्तर: ग) Arbitrary benchmark
An arbitrary benchmark has an assumed RL and is used where connection to a national datum is not needed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Approximate contours sketched on a map from a few spot heights, without precise levelling, are called:
सही उत्तर: ख) Form lines
Form lines show the general shape of the ground and are drawn as broken lines to indicate they are approximate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The method of showing relief on a map by short lines drawn in the direction of the steepest slope, thicker and closer for steeper slopes, is called:
सही उत्तर: क) Hachuring
Hachures indicate slope direction and steepness but do not give actual elevations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Dual-frequency GNSS receivers are preferred for precise surveying mainly because they can:
सही उत्तर: घ) Eliminate most of the ionospheric delay by combining measurements on two frequencies
Ionospheric delay depends on frequency, so observations on two frequencies allow it to be computed and removed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The GPS satellite constellation is arranged in how many orbital planes, inclined at about 55° to the equator?
सही उत्तर: ग) 6
GPS satellites are distributed in six orbital planes inclined at about 55°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The frequency of the GPS L1 carrier signal is:
सही उत्तर: ख) 1575.42 MHz
GPS L1 is 1575.42 MHz and L2 is 1227.60 MHz.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which country has developed and operates the BeiDou satellite navigation system?
सही उत्तर: क) China
BeiDou is China's GNSS; NavIC is India's regional system, QZSS is Japan's and Galileo is the EU's.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Mean sea level at a tide gauge station is properly determined by averaging hourly tide readings over a period of about:
सही उत्तर: घ) 19 years
The lunar nodal cycle is about 18.6 years, so MSL is averaged over roughly 19 years to remove its effect.
💬 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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