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 geological formation that can hold water but cannot transmit it in useful quantity is called:
सही उत्तर: क) Aquiclude
An aquiclude, like clay, is porous but nearly impermeable.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An infiltration gallery is used to collect:
सही उत्तर: ख) Subsurface water from river beds and banks
An infiltration gallery is a horizontal porous conduit laid below the water table near a stream.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A hydraulic ram lifts water to a higher level by using:
सही उत्तर: ग) The water hammer effect of flowing water
A hydraulic ram uses pressure surges from the sudden stopping of flow to push part of the water up, with no external power.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In hilly gravity water supply schemes of Nepal, a break pressure tank (BPT) is provided to:
सही उत्तर: घ) Reduce the static pressure in the pipeline
A BPT opens the line to atmosphere and resets the head to zero, so pipes are not over-pressured.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A check (reflux) valve in a water main:
सही उत्तर: क) Allows flow in one direction only
A check valve closes automatically when flow tries to reverse.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A scour (drain) valve in a pipeline is provided at:
सही उत्तर: ख) The lowest points
Silt and sediment collect at low points, so a scour valve there flushes them out.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a gravity water supply pipeline, an air release valve is provided at:
सही उत्तर: ख) The summits (high points)
Air collects at high points, so the air valve there lets it escape and keeps flow steady.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A water distribution layout that has many dead ends is the:
सही उत्तर: ग) Dead-end (tree) system
In the tree system, branches end at dead ends where water can stagnate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Hardy Cross method is used for:
सही उत्तर: घ) Analysis of flows in a looped pipe network
Hardy Cross balances heads around loops by successive corrections to find flows in each pipe.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Head loss in a 1,000 m long pipe of 200 mm diameter carrying water at 1 m/s with Darcy friction factor f = 0.02 is about:
सही उत्तर: क) 5.1 m
hf = fLV^2/(2gD) = 0.02 x 1000 x 1 / (2 x 9.81 x 0.2) = 5.1 m.
💬 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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