Science and Environment Quiz:

August 1, 2022

With reference to the treatment of cancerous tumours, a tool called cyber knife has been making the news . In this context, which one of the following statements is not correct ?

(A) It is a robotic image guided system.
(B) It delivers an extremely precise dose of radiation.
(C) It has the capability of achieving submillimetre accuracy.
(D) It can map the spread of tumour in the body.

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Answer – B

Widespread resistance of malarial parasite to drugs like chloroquine has prompted attempts to develop a malarial vaccine to combat malaria. Why is it difficult to develop an effective malaria vaccine ?

(A) Malaria is caused by several species of Plasmodium
(B) Man does not develop immunity to malaria during natural infection
(C) Vaccines can be developed only against bacteria
(D) Man is only an intermediate host and not the definitive host.

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Answer – B

Consider the following statements:
1) Hepatitis B is several times more infectious than HIV /AIDS
2) Hepatitis B can cause liver cancer
Which of the statements given above is/ are correct?

(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2

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Answer – C

Consider the following statements:
1) Meningococcal Meningitis is transmitted from person to person by mosquito bites.
2) Vomiting and neck pain are two of the symptoms of Meningococcal Meningitis.
Which of the statement(s) given above is/are correct?

(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither1 nor 2

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Answer – B

Pneumoconiosis affects the workers who work mainly in

(A) Tanneries
(B) Coal mining industry
(C) Distilleries
(D) Glass industry

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Answer – B

Assertion (A) : The person with Diabetes insipidus feels thirsty.
Reason (R) : A person with Diabetes insipidus suffers from excess secretion of vasopressin.

(A) Both A and R are individually true and R is the correct explanation of A
(B) Both A and Rare individually true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true

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Answer – C

Consider the following statements:
1) Dengue is a protozoan disease transmitted by mosquitoes.
2) Retro-orbital pain is not a symptom of dengue.
3) Skin rash and bleeding from nose and gums are some of the symptoms of dengue.
Which of the statements given above is/are correct?

(A) 1 and 2
(B) 3 only
(C) 2 only
(D) 1 and 3

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Answer – B

Which of the following diseases of mulching animals are infectious ?
1)Foot and mouth disease
2) Anthrax
3) Black Quarter
4) Cowpox
Select the correct answer using the codes given below:

(A) 1, 2 and 3
(B) 2, 3 and 4
(C) 1 and 4
(D) 1, 2, 3 and 4

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Answer – D

Consider the following statements about sick human body
1) Swollen Lymph nodes
2) Sweating at night
3) Loss of memory
4) Loss of weight
Which of these symptoms of AIDS ?

(A) 1 and 2
(B) 2, 3 and 4
(C) 1, 3 and 4
(D) 1, 2, 3 and 4

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Answer – D

Foot and Mouth Disease in animals, a current epidemic in some parts of the world, is caused by

(A) Bacterium
(B) Fungus
(C) Protozoan
(D) virus

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Answer – D