सामुदायिक चिकित्सा – Community Medicine MCQ
सामुदायिक चिकित्सा – MD/MS प्रवेश
Community Medicine · MECEE-PG – MD/MS/MDS Entrance · ४१० प्रश्न
४१० प्रश्न उपलब्ध। मोड छान्नुहोस्:
सामुदायिक चिकित्सा: 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 'shake test' in the cold chain is used to check whether:
सही उत्तर: क) An adsorbed vaccine such as tetanus toxoid has been damaged by freezing
Frozen adsorbed vaccines (e.g. TT, DPT, hepatitis B) form flakes that sediment faster than in a non-frozen control vial after shaking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Among routinely used vaccines, the one most sensitive to heat is:
सही उत्तर: घ) Oral polio vaccine
OPV is the most heat-sensitive vaccine and is kept frozen at central stores; toxoids and hepatitis B vaccine are relatively heat-stable but damaged by freezing.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a killed (inactivated) vaccine?
सही उत्तर: ग) Salk polio vaccine (IPV)
IPV contains formalin-inactivated poliovirus; OPV, measles and BCG are live attenuated vaccines.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Epidemic (louse-borne) typhus is transmitted by:
सही उत्तर: ख) The human body louse, Pediculus humanus corporis
Rickettsia prowazekii is transmitted when infected louse faeces are rubbed into bite wounds; overcrowding and poor hygiene favour epidemics.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The oriental rat flea, Xenopsylla cheopis, is the main vector of:
सही उत्तर: घ) Plague
X. cheopis transmits Yersinia pestis (plague) and Rickettsia typhi (endemic murine typhus) from rats to humans.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Farmer's lung is a hypersensitivity pneumonitis caused by spores of thermophilic actinomycetes such as:
सही उत्तर: क) Saccharopolyspora rectivirgula in mouldy hay
Saccharopolyspora (formerly Micropolyspora/Faenia) rectivirgula in mouldy hay causes farmer's lung; Aspergillus clavatus causes malt worker's lung.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Bagassosis is an occupational lung disease caused by inhalation of dust from:
सही उत्तर: ख) Sugarcane fibre
Bagasse is the residue of sugarcane after juice extraction; thermophilic actinomycetes in mouldy bagasse cause hypersensitivity pneumonitis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Chest tightness worse on the first day back at work after a weekend ('Monday fever') in textile mill workers is due to:
सही उत्तर: ग) Byssinosis from cotton dust
Byssinosis results from inhalation of cotton, flax or hemp dust; symptoms are characteristically worse on the first working day of the week.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fresh bleaching powder contains about how much available chlorine?
सही उत्तर: ख) 33%
Good-quality bleaching powder has about 33% available chlorine, which falls on exposure to air, light and moisture; high-test hypochlorite has about 60–70%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a slow sand filter, the biological layer responsible for purification is called the:
सही उत्तर: ग) Schmutzdecke (vital layer)
The Schmutzdecke is a slimy layer of algae, bacteria and plankton on the sand surface that removes organisms and organic matter.
💬 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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