चिकित्सा शिक्षा आयोग (CEE) पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom) तयारी
चिकित्सा शिक्षा आयोग (CEE) – पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom)
Paramedical Bachelor Entrance · Medical Education Commission – CEE
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MBBS/BDS/Nursing 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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The force acting on a body is given by F = (kt) N, where k is a constant and t is time in seconds. If the initial displacement is x₀ and the final displacement after 2 seconds is x, what is the value of x? (a) 8k (b) 16k (c) 32k (d) 64k
सही उत्तर: क) (a) 8k
We can use Newton's second law, F = ma. Since F=kt, we have ma = kt. Integrating both sides with respect to time from 0 to 2 seconds gives: ∫m dt/t = ∫k dt. This simplifies to m * (2) = k * 2, thus m = k. The displacement x is the integral of velocity with respect to time. Since acceleration is a(t) = k, velocity v(t) = ∫a(t) dt = kt + c1 and position x(t) = ∫v(t)dt= (kt²/2)+c1t+c2. Given initial displacement x0 at t=0, x(t)=x=(kt^2/2)+c1t+c2; for t=0: x0 = c2; thus x=(k*2^2/2)+(c1 * 2) + x0. The correct answer is 32k because the time integral to get displacement will always be proportional to force multiplied by time, and at t=2, the force is still k(t), but we’re finding the change in x over a period of two seconds.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man starts walking East at 8 am. After 2 hours he turns right and walks North for 1 hour. Then he turns left and walks South for 30 minutes. What time does he stop?
सही उत्तर: घ) 11:15 AM
He starts at 8 am. Walks East for 2 hours, so it’s 10 am. Then walks North for 1 hour, making it 11 am. He then turns left (West) and walks South for 30 minutes - this puts him back to 11:30 AM.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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5 : 10 :: 7 : ?
सही उत्तर: क) 14
The relationship between the numbers is a multiplication of 5 by 2. Therefore, 5 x 2 = 10, and similarly, 7 x 2 = 14. The other options are incorrect because they do not follow this simple multiplication pattern.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following features characterizes a cartilaginous fish? a) Bony skeleton and scales. b) Presence of an operculum and gills covered by bony plates. c) Cartilaginous skeleton and placoid scales. d) Paired fins with fleshy lobes.
सही उत्तर: ग) Presence of an operculum and gills covered by bony plates (1), Bony skeleton and scales (2), Cartilaginous skeleton and placoid scales (3), Paired fins with fleshy lobes (4)
Cartilaginous fish are characterized by having a cartilaginous skeletal system and placoid scales, distinct from the bony scales found in most other fish. The operculum is a feature of bony fishes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following structures is primarily responsible for maintaining constant body temperature in birds? a) Gizzard b) Crop c) Uric acid excretion d) Air sacs
सही उत्तर: घ) Air sacs (1), Gizzard (2), Crop (3), Uric acid excretion (4)
The air sacs in bird respiratory system are vital for thermoregulation by providing a large surface area for heat exchange with the environment. Uric acid is a waste product.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary function of the contractile rings observed during mammalian oocyte maturation is: a) To facilitate the fusion of sperm and egg. b) To increase the size of the oocyte. c) To guide the oocyte towards the uterus. d) To initiate protein synthesis within the oocyte.
सही उत्तर: क) To facilitate the fusion of sperm and egg (1), To increase the size of the oocyte (2), To guide the oocyte towards the uterus (3), To initiate protein synthesis within the oocyte (4)
The contractile rings are essential for directing the oocyte towards the uterus after fertilization. They play a crucial role in guiding the developing embryo.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the process of peristalsis? a) It is a rapid, coordinated contraction of muscles involved in locomotion. b) It is a wave-like muscular contraction that propels food or other substances along a tubular organ. c) It is the diffusion of nutrients across cell membranes. d) It is the synthesis of proteins within muscle cells.
सही उत्तर: ख) It is a rapid, coordinated contraction of muscles involved in locomotion (1), It is the diffusion of nutrients across cell membranes (2), It is the synthesis of proteins within muscle cells (3), It is a wave-like muscular contraction that propels food or other substances along a tubular organ (4)
Peristalsis involves rhythmic contractions and relaxations of smooth muscles that create pressure waves propelling substances through digestive or respiratory tracts. Option 2 describes segmentation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The larval stage of *Plasmodium falciparum*, the parasite causing malaria, develops within which organism? a) Grasshopper b) Mosquito c) Frog d) Earthworm
सही उत्तर: ख) The mosquito (1), Grasshopper (3), Frog (2), Earthworm (4)
*Plasmodium falciparum* undergoes its developmental stages within the definitive host, namely the *Anopheles* mosquito. The other options represent alternative hosts for different parasites.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the missing number in this series: 7, 14, 21, __, 35?
सही उत्तर: क) 28
The series consists of multiples of 7. Following the pattern, the next number is 28 (7 * 4).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The power dissipated in a circuit containing a resistor of 10 ohms connected in series with a capacitor of capacity 10 microfarads when a voltage of 2 volts is applied across the combination is:
सही उत्तर: घ) 1.6 W
The impedance (Z) of the circuit is given by Z = √(R² + Xc², where R is resistance and Xc is capacitive reactance). Then, power dissipated is P= V²/Z. The incorrect options stem from inaccurate calculations of impedance or applying Ohm’s law directly without considering the capacitor.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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