Everyday Science 2011 Paper
Everyday Science 2011 Paper
Everyday Science 2011 Paper
COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS IN BS-17 UNDER THE FEDERAL GOVERNMENT, 2011 GENERAL KNOWLEDGE, PAPER-I (EVERYDAY SCIENCE)
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80 MINUTES MAXIMUM MARKS: 50 TIME ALLOWED: (PART-I MCQs) THREE HOURS (PART-II) 100 MINUTES MAXIMUM MARKS: 50 NOTE: (i) First attempt PART-I (MCQs) on separate Answer Sheet which shall be taken back after 80 minutes. (ii) Overwriting/cutting of the options/answers will not be given credit. (PART-I MCQs) (COMPULSORY) Q.1. Select the best option/answer and fill in the appropriate box on the answer sheet. (1 x 50 = 50) (1) The planet of the solar system which has maximum number of Moon is: (a) Jupiter (b) Venus (c) Saturn (d) Uranus (e) None of these. (2) Sun is a: (a) Planet (b) Comet (c) Satellite (d) Aurora (e) None of these. (3) The age of the solar system is: (a) 4.5 billion years (b) 5.5 billion years (c) 6.5 billion years (d) 7.5 billion years (e) None of these. (4) A unit of length equal to the average distance between the Earth and Sun is called: (a) Light year (b) Astronomical unit (c) Parsec (d) Parallax (e) None of these. (5) An eclipse of the Sun occurs when: (a) The Moon is between the Sun and the Earth (b) The Sun is between the Earth and the Moon (c) The Earth is between the Sun and the Moon (d) The Earth casts its shadow on the Moon (e) None of these. (6) The ozone layer protects the Earth from rays sent down by the Sun: (a) Ultraviolet rays (b) Infrared rays (c) Gamma rays (d) Radioactive rays (e) None of these. (7) The ozone layer is present about 30 miles (50 Km) in atmosphere above the Earth. The stratum (layer) of atmosphere in which ozone layer lies is called as: (a) Exosphere (b) Mesosphere (c) Stratosphere (d) Ionosphere (e) Troposphere (8) Which rocks are formed by the alteration of pre-existing rocks by great heat or pressure? (a) Igneous rocks (b) Sedimentary rocks (c) Metamorphic rocks (d) Acid rocks (e) Basic rocks. (9) The most abundant natural Iron Oxides are: (a) Magnetite and Pyrite (b) Magnetite and Bauxite (c) Hematite and Pyrite (d) Hematite and Magnetite (e) Hematite and Bauxite (10) The two most abundant elements in sea water are: (a) Sodium and Potassium (b) Sodium and Calcium (c) Sodium and Chlorine (d) Chlorine and Iodine (e) Magnesium and Sulphur (11) An electric current can produce: (a) Chemical effect (b) Magnetic effect (c) Heating effect (d) All of these three (e) None of these. Page 1 of 4
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Write short note on the following Muslim scientists by giving their exact life span and contribution to the field of science:(5 x 2 = 10) (a) Jabar-bin-Hayan (b) Bu Ali Sina Differentiate between any FIVE of the following pairs:(5 x 2 = 10) (a) Typhoons and Tornadoes (b) Microscope and Telescope (c) Ultrasonics and Infrasonics (d) Hard water and Heavy water (e) Isotopes and Isomers (f) Antibodies and Antibiotics (g) Antigen and Vaccine (a) What is a galaxy? The Earth belongs to which galaxy? (1+1 = 2) (b) Briefly describe what is big bang theory. (4) (c) Do you think that Pluto is still ninth planet of our solar system? If yes, how and if not why? (1+3) (a) Basically how many forms of energy are there? Also name these. (1+1 = 2) (b) Enlist different types of energy. (4) (c) Why are scientists trying to find alternate energy sources? (2) (d) What is a renewable energy source? Quote three examples of renewable energy sources. (2) Is plastic a natural or an artificial polymer? Describe various types of plastics and their uses. (10) (a) What do the following abbreviations stand for: (i) LAN (ii) HTTP (iii) HTML (iv) PDF (v) URL (1 x 5 = 5) (b) Differentiate between natural and artificial satellites. For what purpose artificial satellites are used? (5) (a) What is the main function of: (1 x 5 = 5) (i) Ribosome (ii) Mitochondria (iii) Lysosomes (iv) Chloroplasts (v) Golgi apparatus (b) Give habitats of following animals: (1 x 5 = 5) Rattle snake (ii) Ostrich (iii) Platypus (iv) Rhinoceros (i) (v) Chimpanzee. Write short notes on the following:(2 x 5 = 10) (a) Nucleic acids (b) Fertilizers (c) Semiconductors (d) Microwave oven (e) Internet ********* Page 4 of 4