सिभिल इन्जिनियरिङ
सिभिल इन्जिनियरिङ
Civil Engineering · ५,१७१ प्रश्न
५,१७१ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सिभिल इन्जिनियरिङ: 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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Which of the following is a Kharif (monsoon) crop in Nepal?
सही उत्तर: ग) Paddy (rice)
Kharif crops are sown with the monsoon (June–July) and harvested in autumn, e.g. rice and maize; wheat, mustard and barley are Rabi crops.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A current meter is used in stream gauging to measure:
सही उत्तर: ग) Velocity of flow at points in a river cross-section
The current meter's rotation rate gives point velocity; discharge is then computed by the area-velocity method.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A tipping bucket rain gauge is a:
सही उत्तर: ग) Recording (automatic) type rain gauge
Each tip of the bucket (for a fixed small rainfall, e.g. 0.25 mm) is recorded, giving rainfall intensity with time.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In Nepal, the government agency responsible for collecting rainfall, river flow and weather data is the:
सही उत्तर: घ) Department of Hydrology and Meteorology
The Department of Hydrology and Meteorology (DHM) operates Nepal's hydrometric and meteorological stations and issues weather and flood forecasts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An S-curve (S-hydrograph) in hydrology is used to:
सही उत्तर: क) Derive a unit hydrograph of a different duration from a given unit hydrograph
The S-curve is the runoff from continuous effective rainfall; offsetting and subtracting S-curves gives unit hydrographs of any desired duration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The evaporation measured with a Class A pan is converted to lake evaporation by multiplying it by a:
सही उत्तर: क) Pan coefficient (about 0.7)
Pans exaggerate evaporation compared with large water bodies, so a pan coefficient of about 0.7 is applied for the Class A pan.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The probability that a 10-year flood will NOT occur at all in the next 5 years is about:
सही उत्तर: ख) 0.59
P(no occurrence) = (1 − 1/T)ⁿ = 0.9⁵ ≈ 0.59.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The probability that a flood of 50-year return period will occur at least once during the next 10 years is about:
सही उत्तर: घ) 0.18
Risk = 1 − (1 − 1/T)ⁿ = 1 − 0.98¹⁰ ≈ 1 − 0.817 ≈ 0.18.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A storm of 6 hours has hourly rainfall intensities of 2, 4, 6, 4, 2 and 1 cm/h, and the observed direct runoff is 7 cm. The φ-index is about:
सही उत्तर: ग) 2.33 cm/h
Assuming φ lies between 2 and 4 cm/h: (4 − φ) + (6 − φ) + (4 − φ) = 7 ⇒ 14 − 3φ = 7 ⇒ φ ≈ 2.33 cm/h (consistent with the assumption).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An air vessel is fitted to the suction and delivery pipes of a:
सही उत्तर: ख) Reciprocating pump
Air vessels smooth out the fluctuating flow of a reciprocating pump, saving power and allowing higher speeds.
💬 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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