Practice Practice test - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Which of the following is not a synthetic fibre:

(a) Nylon

(b) Rayon

(c) Angora

(d) Polyester

Q-2)   Consider the following statements:

1. Use of fertilizers has role on water pollution
2. Excessive use of pesticides help to decrease water pollution.

Which of these statement(s) above is/are correct ?

(a) 2 only

(b) 1 only

(c) 1 and 2

(d) None

Q-3)   Which of the following is/are the hazardous pollutant(s) present in automobile exhaust gases?

1. N₂
2. CO
3. CH₄
4. Oxides of nitrogen

Choose the correct option:

(a) 1 and 2

(b) 2 and 3

(c) 2 and 4

(d) 1 and 3

Q-4)   Which one of the following is used as an explosive?

(a) Graphite

(b) Mercuric oxide

(c) Phosphorus trichloride

(d) Nitroglycerine

Q-5)   Eutrophication causes reduction in

(a) nutrients

(b) dissolved salts

(c) dissolved oxygen

(d) All of these

Q-6)   Eutrophication causes reduction in

(a) nutrients

(b) dissolved oxygen

(c) dissolved salts

(d) All the above

Q-7)   People drinking water from a shallow handpump are likely to suffer from the diseases

1. cholera
2. typhoid
3. jaundice
4. flourosis

The correct answer is :

(a) 1, 2 and 3

(b) 1, 2 and 4

(c) 2, 3 and 4

(d) 1 and 3

Q-8)   From which one among the following water sources, the water is likely to be contaminated with fluoride?

(a) Pond water

(b) River water

(c) Ground water

(d) Rain water

Q-9)   Which one of the following is another name of RDX?

(a) Cyclohexane

(b) Dextran

(c) Cyanohydrin

(d) Cyclonite

Q-10)   DDT is a –

(a) antibiotics

(b) biodegradable pollutant

(c) non-biodegradable pollutant

(d) none of the above