16
The cycle which is absent in human is
1
menstrual
2
ovarian
3
hormonal
4
estrous
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17
Plastic syringes are sterilized by
1
gamma rays
2
hot air oven
3
autoclave
4
washing in phenol
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18
In North India, the most common congenital lesion is
1
neural tube defect
2
cleft palate
3
clubfoot
4
congenital heart disease
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Answer: congenital heart disease
19
The maximum level of chloride in drinking water is
1
600 mg/L
2
500 mg/L
3
300 mg/L
4
200 mg/L
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20
Which one of the following is organophosphorus poison?
1
Physostigmine
2
Dyflos
3
Tacrine
4
Edrophonium
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21
Chronic carrier in Salmonella is
1
faecal carrier
2
urinary carrier
3
blood carrier
4
None of the above
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22
Oral polio vaccine is a
1
live attenuated vaccine
2
killed vaccine
3
subunit vaccine
4
None of the above
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Answer: live attenuated vaccine
23
The main purpose of BCG given to a child is to
1
prevent all forms of TB
2
prevent severe form of TB
3
prevent severe complications
4
control all forms of TB
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Answer: control all forms of TB
24
High-fibre diet
1
modifies stool transit time
2
decreases incidences of colon cancer
3
Both (A) and (B)
4
None of the above
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25
India was declared smallpox-free in the year
1
1973
2
1975
3
1976
4
1977
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26
The virus most commonly associated with viral myocarditis is
1
mumps
2
rubella
3
coxsackie B
4
hepatitis A
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27
Asbestos exposure causes
1
mesothelioma
2
tetralogy of Fallot
3
cerebral palsy
4
repeated abortion
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28
Antigenic drift is usually seen in
1
smallpox
2
measles
3
yellow fever
4
influenza
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29
Lyme disease is caused by a
1
virus
2
fungus
3
bacterium
4
Spirochaeta
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30
pH factor is a/an
1
antibody
2
mucopolysaccharide
3
lipoprotein
4
glycoprotein
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