त्रिवि IT प्रवेश BIT र BCA प्रवेश तयारी
त्रिवि IT प्रवेश – BIT र BCA प्रवेश
TU BIT & BCA Entrance · TU IT Entrance (B.Sc. CSIT, BIT, BCA)
२,६०७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
IT 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
-
The integral of ∫ (x² + 1) dx is equal to:
सही उत्तर: ख) (x³)/3 + x + C
The integral of a sum is the sum of the integrals. We integrate each term separately: ∫x² dx = (x³/3) and ∫1 dx = x, therefore the result is (x³/3) + x + C.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
If f(x) = x² - 4x + 5, then f⁻¹(x) is:
सही उत्तर: ख) x + 2 ± √3
This question tests understanding of inverse functions. f⁻¹(x) is found by solving f(x) = y for x, then swapping x and y. Solving this quadratic gives x = -2 ± √3, which are the correct options.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The solution of differential equation dx/dt = x²(1 - t²) is:
सही उत्तर: क) x = 0
This is a separable differential equation. Separating the variables gives: dx / x² = (1 - t²) dt. Integrating both sides, we get: ∫ dx / x² + C = ∫ (1 - t²) dt; which simplifies to (-1/x) + C = t - t³/3 + K. The solution is not one of the options in this paper, but it provides a test for understanding separable differential equations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following statements about RAID (Redundant Array of Independent Disks) 5 is correct?
सही उत्तर: ग) It combines mirroring and striping to provide both redundancy and performance
RAID 5 utilizes a combination of mirroring and striping. Striping distributes data across multiple disks for performance, while mirroring provides redundancy by copying data to another disk in case of failure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
In object-oriented programming (OOP), what does ‘encapsulation’ refer to?
सही उत्तर: ख) Bundling data and methods that operate on that data within a single unit (class)
Encapsulation is a core OOP principle where data and the methods (functions) that operate on that data are bundled together into a single unit, protecting the data's integrity and simplifying code management.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which bitwise operator is used to find the difference between two numbers in terms of their set bits?
सही उत्तर: ग) XOR (^)
The XOR (^) operator returns 1 only when the corresponding bits are different. This effectively identifies the bits that are set in one number but not the other, representing the difference in their binary representation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
What is the purpose of a compiler?
सही उत्तर: ख) To translate high-level code into machine code
A compiler translates human-readable source code (like C or Java) into machine code that a computer can understand and execute. The other options describe different functionalities of software, but not the core task of translation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A 100 g ice cube at -20°C is added to a container containing 500 g of water at 20°C. The specific heat capacity of ice is 2100 J/kg·°C, the specific heat capacity of water is 4200 J/kg·°C, and the latent heat of fusion of ice is 3.34 × 10⁵ J/kg. What is the final temperature (तापमान) of the mixture?
सही उत्तर: ग) 30°C
The correct answer is 20°C. Initially, all the heat required to melt the ice will be absorbed by the ice at -20°C. Then, once all the ice has melted, the water-ice mixture will warm up until it reaches thermal equilibrium with the surrounding water at 20°C.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following statements best describes the relationship between potential difference (वोल्टेज) and current (धारा) in a circuit?
सही उत्तर: ख) They are directly proportional
The correct answer is they are directly proportional. This is represented by Ohm's Law: V = IR, where V is potential difference, I is current, and R is resistance. The other options relate to incorrect relationships between voltage, current, and resistance.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The specific heat capacity of water is approximately 4200 J/kg·°C. How much energy (जूल में) is required to raise the temperature of 2 kg of water by 5 °C?
सही उत्तर: क) 8400 J
The correct answer is 8400 J. This is calculated using the formula Q = mcΔT, where Q is heat energy, m is mass, c is specific heat capacity, and ΔT is the change in temperature. The other options are incorrect as they do not use the given values correctly.
💬 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।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।