चिकित्सा स्नातकोत्तर प्रवेश (MECEE-PG) MD / MS / MDS प्रवेश परीक्षा तयारी
चिकित्सा स्नातकोत्तर प्रवेश (MECEE-PG) – MD / MS / MDS प्रवेश परीक्षा
MECEE-PG – MD/MS/MDS · MECEE-PG (MD/MS/MDS)
२,८६५ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MD/MS/MDS 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 approved effective lifespan of the Copper-T 380A intrauterine device is:
सही उत्तर: घ) 10 years
Copper-T 380A is approved for 10 years of use. Cu-T 200B and hormonal IUDs have shorter durations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A trial of a contraceptive among 300 women for 2 years records 12 accidental pregnancies. The Pearl index is:
सही उत्तर: ग) 2 per 100 woman-years
Pearl index = pregnancies × 1200 / total months of exposure = 12 × 1200 / (300 × 24) = 2. Forgetting the 2-year duration gives 4.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the demographic cycle, the 'early expanding' stage is characterised by:
सही उत्तर: ख) High birth rate with a declining death rate
In the early expanding stage death rates fall while birth rates stay high, causing rapid population growth. High birth and death rates characterise the high stationary stage.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Total fertility rate (TFR) is best defined as:
सही उत्तर: क) Average number of children a woman would bear in her lifetime at current age-specific fertility rates
TFR is the sum of age-specific fertility rates and gives completed family size. The average number of daughters is the gross reproduction rate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A population has 30,000 persons aged 0–14 years, 65,000 aged 15–64 years and 5,000 aged 65 years and above. The total dependency ratio is approximately:
सही उत्तर: घ) 53.8%
Dependency ratio = (0–14 + 65+)/(15–64) × 100 = 35,000/65,000 × 100 = 53.8%. Dividing by the total population (35%) is the common mistake.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Maternal mortality ratio is conventionally expressed per:
सही उत्तर: ग) 100,000 live births
MMR = maternal deaths / live births × 100,000. Infant mortality rate, in contrast, is expressed per 1000 live births.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The denominator used in calculating the infant mortality rate is:
सही उत्तर: ख) Number of live births in the same year
IMR = infant deaths (under 1 year) in a year / live births in the same year × 1000. Total births (live + still) are used in some perinatal mortality definitions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main purpose of randomization in a randomized controlled trial is to:
सही उत्तर: क) Eliminate selection bias and make groups comparable
Random allocation distributes known and unknown confounders evenly, removing selection bias. Concealing treatment from participants is blinding, not randomization.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A sample of 100 subjects has a standard deviation of 10 mmHg. The standard error of the mean is:
सही उत्तर: घ) 1 mmHg
SE = SD/√n = 10/√100 = 10/10 = 1. Dividing by n instead of √n would wrongly give 0.1.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A type I error (alpha error) means:
सही उत्तर: ग) Rejecting the null hypothesis when it is actually true
Type I error is a false positive conclusion, its probability being the significance level α. Accepting a false null hypothesis is a type II (β) error.
💬 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।