CTEVT डिप्लोमा इन्जिनियरिङ डिप्लोमा इन सिभिल/कम्प्युटर/इलेक्ट्रिकल प्रवेश तयारी
CTEVT डिप्लोमा इन्जिनियरिङ – डिप्लोमा इन सिभिल/कम्प्युटर/इलेक्ट्रिकल प्रवेश
CTEVT Diploma Entrance · CTEVT Diploma in Engineering
१,५७१ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CTEVT डिप्लोमा इन्जिनियरिङ प्रवेश: 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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Sound of frequency above 20,000 Hz is called:
सही उत्तर: ख) Ultrasonic sound
Humans hear roughly 20 Hz to 20,000 Hz; above this range is ultrasound. 'Supersonic' refers to speed greater than the speed of sound, not frequency.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The amount of heat required to raise the temperature of 1 kg of a substance by 1 °C (or 1 K) is called its:
सही उत्तर: ख) Specific heat capacity
Specific heat capacity is measured in J/(kg K); for water it is about 4200 J/(kg K). Latent heat is absorbed during change of state without any rise in temperature.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The transfer of heat in a vacuum takes place by:
सही उत्तर: क) Radiation
Radiation needs no material medium, which is how heat from the Sun reaches the Earth. Conduction and convection both require a medium.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The SI unit of temperature is:
सही उत्तर: ग) Kelvin
The kelvin (K) is the SI base unit of temperature; T(K) = T(°C) + 273. The calorie is an old unit of heat energy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Heat flows from one body to another due to a difference in:
सही उत्तर: ख) Temperature
Heat always flows from a body at higher temperature to one at lower temperature until both reach the same temperature. A large mass at low temperature does not give heat to a small hot body.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ratio of load to effort in a simple machine is called:
सही उत्तर: क) Mechanical advantage
Mechanical advantage (MA) = load ÷ effort. Velocity ratio is effort distance ÷ load distance, and efficiency = MA/VR × 100%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which simple machine is a pair of scissors?
सही उत्तर: घ) First-class lever
In scissors the fulcrum (the pivot) lies between the effort and the load, which defines a first-class lever. A nutcracker is a second-class lever, with the load between fulcrum and effort.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A body floats in a liquid when:
सही उत्तर: ग) Its density is less than that of the liquid
If a body's density is less than the liquid's, the upthrust can balance its weight before it is fully submerged, so it floats. A body denser than the liquid sinks.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The upward force exerted by a fluid on a body immersed in it is called:
सही उत्तर: ख) Upthrust (buoyant force)
According to Archimedes' principle, the upthrust equals the weight of fluid displaced. Viscosity is the internal friction of a fluid, not an upward force.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Atmospheric pressure is measured by a:
सही उत्तर: क) Barometer
A barometer measures atmospheric pressure; standard atmospheric pressure is about 76 cm of mercury. A hydrometer measures the density or relative density of liquids.
💬 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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