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Question (31)

QN003061

The traditional Indian method used to protect against smallpox before modern vaccines was called

(A) Pasteurisation
(B) Variolation
(C) Isolation
(D) Vaccination drive

Correct Answer: B

Explanation:

Variolation was an early method of protection against smallpox.

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Question (32)

QN003062

India played an important role during the COVID-19 pandemic mainly by

(A) Closing all hospitals
(B) Producing vaccines on a large scale
(C) Stopping scientific research
(D) Banning medicines

Correct Answer: B

Explanation:

India is one of the largest vaccine producers in the world.

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Question (33)

QN003063

Antibiotics are mainly effective against

(A) Viral infections
(B) Bacterial infections
(C) Fungal allergies only
(D) All diseases equally

Correct Answer: B

Explanation:

Antibiotics kill bacteria.

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Question (34)

QN003064

A child with common cold starts taking antibiotics without a doctor’s advice. What is the major risk?

(A) Increased immunity instantly
(B) Antibiotic resistance
(C) Faster growth
(D) Permanent cure of all infections

Correct Answer: B

Explanation:

Unnecessary antibiotic use causes antibiotic resistance.

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Question (35)

QN003065

Which practice can reduce antibiotic resistance?

(A) Taking incomplete doses
(B) Using antibiotics unnecessarily
(C) Taking antibiotics only as prescribed
(D) Sharing antibiotics with friends

Correct Answer: C

Explanation:

Proper use of antibiotics prevents resistance.

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Question (36)

QN003066

If antibiotics kill most bacteria but a few resistant bacteria survive and multiply, the next infection becomes

(A) Easier to treat
(B) Harder to treat
(C) Impossible to identify
(D) Completely harmless

Correct Answer: B

Explanation:

Resistant bacteria survive and spread.

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Question (37)

QN003067

A school has 500 students. During flu season, 350 students wear masks regularly while 150 do not. Which group is expected to have lower chances of infection?

(A) Students not wearing masks
(B) Students wearing masks
(C) Both groups equally
(D) None of the groups

Correct Answer: B

Explanation:

Wearing masks reduces spread of infection.

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Question (38)

QN003068

In a community, diarrhoea cases reduced from 120 to 60 after proper toilet use and sanitation campaigns. The percentage reduction in cases is

(A) 25%
(B) 40%
(C) 50%
(D) 75%

Correct Answer: C

Explanation:

Reduction = 120 − 60 = 60; Percentage reduction = (60/120) × 100 = 50%.

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Question (39)

QN003069

Dengue cases in a town increased from 20 in June to 80 in July after heavy rainfall. The increase in cases was

(A) 20
(B) 40
(C) 60
(D) 80

Correct Answer: C

Explanation:

Increase = 80 − 20 = 60 cases.

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Question (40)

QN003070

A person follows balanced diet, proper sleep, regular exercise, maintains hygiene, and spends time happily with family. This person is most likely to have

(A) Complete well-being
(B) Only physical health
(C) Only mental health
(D) Only social health

Correct Answer: A

Explanation:

Good physical, mental and social habits lead to complete well-being.

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Question (31)

The traditional Indian method used to protect against smallpox before modern vaccines was called

Explanation:

Link:

Question (32)

India played an important role during the COVID-19 pandemic mainly by

Explanation:

Link:

Question (33)

Antibiotics are mainly effective against

Explanation:

Link:

Question (34)

A child with common cold starts taking antibiotics without a doctor’s advice. What is the major risk?

Explanation:

Link:

Question (35)

Which practice can reduce antibiotic resistance?

Explanation:

Link:

Question (36)

If antibiotics kill most bacteria but a few resistant bacteria survive and multiply, the next infection becomes

Explanation:

Link:

Question (37)

A school has 500 students. During flu season, 350 students wear masks regularly while 150 do not. Which group is expected to have lower chances of infection?

Explanation:

Link:

Question (38)

In a community, diarrhoea cases reduced from 120 to 60 after proper toilet use and sanitation campaigns. The percentage reduction in cases is

Explanation:

Link:

Question (39)

Dengue cases in a town increased from 20 in June to 80 in July after heavy rainfall. The increase in cases was

Explanation:

Link:

Question (40)

A person follows balanced diet, proper sleep, regular exercise, maintains hygiene, and spends time happily with family. This person is most likely to have

Explanation:

Link:

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