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Science (Mixed) Quiz Based on NCERT for SSC 2016 Quiz

Science (Mixed) Quiz Based on NCERT for SSC 2016 Quiz_40.1
Q1. Which of the following decrease in number in the human body due to Dengue fever? 
(a) Platelets 
(b) Haemoglobin 
(c) Sugar 
(d) Water

Q2. A hydrogen-inflated polythene balloon is released from the surface of the earth. As the balloon rises to an altitude up in the atmosphere, it will—
(a) decrease in size 
(b) flatten into a disc-like shape 
(c) increase in size 
(d) maintain the same size and shape

Q3. Ultrasonic waves are used for stirring liquid solutions because they—
(a) do not produce noise during the operation 
(b) are easy to produce 
(c) can produce perfectly homogeneous solution 
(d) do not produce chemical reactions in the solution

Q4. Consider the following statements: 
A body weighs less at the equator than at the poles because: 
1. earth rotates about its axis. 
2. the ice cap at the poles increases gravitational pull. 
3. equatorial diameter is greater than the polar diameter. 
4. of some unknown facts. 
Which of the statements given above is/are incorrect? 
(a) 1 and 2 
(b) 3 only 
(c) 1 and 3 
(d) 4 only

Q5. Match List-I with List-II and select the correct answer given below: 
List-I  List-II 
A. Electron  1. Rutherford 
B. Proton          2. J.J. Thomson 
C. Neutron  3. Chadwick 
D. Positron  4. Anderson 
Codes: A B C D 
(a) 2 1 3 4 
(b) 4 3 1 2 
(c) 2 1 4 3 
(d) 4 3 2 1

Q6. The mad cow disease is caused by which of the following?
(a) Bacteria 
(b) Viruses 
(c) Fungus 
(d) Prions

Q7. The credit of construction of first nuclear reactor goes to – 
(a) Niels Bohr 
(b) Fermi 
(c) Einstein 
(d) Oppenheimer

Q8. Heavy water is used as a moderator in a nuclear reactor. The function of the moderator is—
(a) to control the energy released in the reactor. 
(b) to absorb neutrons and stop the chain reaction. 
(c) to cool the reactor. 
(d) to slow down the neutrons.

Q9. Which one among the following elements/ions is essential in small quantities for development of healthy teeth but causes mottling of the teeth if consumed in higher quantities? 
(a) Fluoride 
(b) Iron 
(c) Chloride 
(d) Potassium

Q10. Which one of the following chemicals helps in fruit ripening? 
(a) Ethephon 
(b) Atrazine 
(c) Isoproturan 
(d) Malathion

Q11. A man inside a moving train tosses a coin, the coin falls behind him. The train is moving 
(a) forward with a uniform speed 
(b) backward with a uniform speed 
(c) forward with deceleration 
(d) forward with acceleration

Q12. Excessive exposure of humans to U V-rays results in—
(a) damage to immune system 
(b) damage to lungs 
(c) skin cancer 
(d) peptic ulcers

Q13. Who was the discoverer of human blood groups? 
(a) Landsteiner 
(b) Livine 
(c) Vinear 
(d) Leeuwenhoek

Q14. Of the following, ELISA test is performed to test 
(a) Diabetes 
(b) Tuberculosis 
(c) AIDS 
(d) Syphilis

Q15. Consider the following statements regarding diamond: 
1. It is an allotrope of silicon. 
2. It is a bad conductor of heat and electricity. 
3. It is the hardest substance. 
4. It burns to produce carbon dioxide. 
Which of the statements given above are correct? 
(a) 1, 2, 3 and 4 
(b) 2, 3, and 4 
(c) 1 and 2 
(d) 1, 3 and 4

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