(C) Shutter
(D) None of these
2. What is the normal blood pressure of human?
(A) 90 / 120 mm of Hg
(B) 90 / 140 mm of Hg
(C) 100 / 140 mm of Hg
(D) 80 / 120 mm of Hg
3. Which type of radiation is absorbed by the upper layer of the atmosphere?
(A) Radio waves
(B) Ultraviolet
(C) Infrared
(D) Visible
4. Where is Indira Gandhi Atomic Research Center located?
(A) Sriharikota
(B) Mumbai
(C) Thiruvananthapuram
(D) Kalpakkam
5. Which of the following disease is caused by Virus?
(A) Hepatitis
(B) Tuberculosis
(C) Typhoid
(D) Cholera
6. A fuse wire should have following characteristics -----
(A) Low melting point, high resistance
(B) High melting point, low resistance
(C) Low melting point, low resistance
(D) High melting point, high resistance
7. Which of the following are decomposers?
(A) Animals
(C) Bacteria and Fungi
(D) Soil and water
8. Which type of coal is used to produce thermal electricity?
(A) Bituminous
(B) Anthracite
(C) Lignite
9. Which of the following is the substitute for wool?
(B) Mercerized cotton
(C) Polythene
(D) Nylon 6, 6
10. Which of the following element is essential for the formation and growth of bones and cartilages?
(B) Silicon
(C) Magnesium
(D) Calcium
11. What is the minimum distance for visibility for a common eye?
12. Solder is an alloy of _________.
(A) Tin and zinc.
(B) Tin and lead
(C) Zinc and lead
(D) Copper and zinc
13. An unfertilized human egg has --------
(A) One X chromosome
(B) One Y chromosome
(C) One X and one Y chromosome
(D) Two X chromosomes
14. What is metabolism?
(A) Analysis of bio molecule
(B) Catalysis of bio molecule
(C) Analysis and catalysis of bio molecule
(D) None of these
15. Decibel is the unit of __________.
(A) Intensity of sound
(B) Intensity of light
(C) Frequency of light
(D) Frequency of sound
Solutions:
1. (B) Film of the camera works similar to that of the retina of human’s eye.
2. (D) Normal blood pressure of human is 80 / 120 mm of Hg.
3. (C) Infrared radiation is absorbed by the upper layer of the atmosphere.
4. (D) Indira Gandhi Atomic Research Center is located at Kalpakkam.
5. (A) Hepatitis is a viral disease.
6. (A) A fuse wire should have low melting point, high resistance.
7. (C) Bacteria and fungi are categorized as decomposers.
8. (B) Anthracite coal is used in the production of thermal electricity.
9. (D) Nylon 6, 6 is the substitute for wool
10. (D) Calcium is essential for the formation and growth of bones and cartilages.
11. (C) Minimum distance for visibility for a common eye is 25 cm.
12. (B) Solder is an alloy of tin and zinc.
13. (A) An unfertilized human egg has one X chromosome.
14. (C) Metabolism is the process of analysis and catalysis of bio molecule.
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