Everyday Science KP PMS Paper 2013

KHYBER PAKHTUNKHWA, PUBLIC SERVICE COMMISSION
COMPETITIVE EXAMINATION FOR THE POST OF PROVINCIAL MANAGEMENT SERVICES (BPS-17) – 2013
General Knowledge (Every Day Science)
TIME ALLOWED: 03 HOURS MAX. MARKS: 100
Note: Attempt any TEN questions. All questions carry equal marks.
Q.1 Write short notes on any TWO of the following: (05 marks each)
(a) Telecommunication (b) Photosynthesis (c) Nanotechnology
Q.2 Muslim scientists played an important role in the evolution and development of science. Explain. (10 marks)
Q.3 Where does “Ozone layer” lie in atmosphere? How it is depleting and how we can prevent its depletion? (10 marks)
Q.4 (a) Define Acid rain. How it forms and what are its effects? (05 marks)
(b) State how your city or village is an “Ecosystem” and describe your position and role in that ecosystem. (05 marks)
Q.5 Differentiate between any FIVE of the following: (02 marks each)
(a) Asteroid and meteorite (b) Cartilage and bone (c) Fission and fusion (d) Absorption and adsorption (e) Ghee and oil (f) RAM and ROM
Q.6 Write briefly about any FIVE of the following: (02 marks each)
(a) Cosmic Rays (b) Condensation (c) Artificial Radioactivity (d) Isotopes (e) Biological evolution (f) Microcontroller
Q.7 Briefly account for (02 marks each)
(a) What is “Mirage”?
(b) Why do we perspire before rain?
(c) How does microwave oven cook?
(d) Why is it easier to roll a barrel than to pull it?
(e) Why do gardeners use the method of cutting and grafting?
Q.8 Choose the correct answer (01 mark each)
(i) The famous book, Al-Qanoon was written by the Muslim scientist:
(a) Jabar bin Hayyan (b) Zakariya Al-Razi (c) Abu Ali Sina (d) Abdul Qasim Mujreeti
(ii) Coulomb is the scientific unit to measure:
(a) Mass (b) Velocity (c) Temperature (d) None of these
(iii) Amino acids are the organic compound behaving like:
(a) Acid (b) Base (c) Both (a) and (b) (d) None of these
(iv) Animals obtain Carbohydrates mainly from:
(a) Sucrose (b) Glycogen (c) Starch (d) Glucose
(v) The study of fossils and their relationship to the evolution of life on earth is called:
(a) Fossilization (b) Paleontology (c) Palaeoecology (d) None of these
(vi) One of the main functions of the of earth’s ozone layer is to:
(a) Prevent global warming (b) Filter out UV rays (c) Absorb pollution (d) All of these
(vii) The internal resistance of a Liquid to flow is called:
(a) Surface tension (b) Isomorphism (c) Viscosity (d) Allotropy
(viii) When all access and processing is done in one location, a computer system is said to be:
(a) Networked (b) Distributed (c) Centralized (d) Linked
(ix) The type of modulation that changes the height of the signal is called:
(a) Frequency (b) Phase (c) Amplitude (d) Height
(x) If a person eats more protein than are needed, this causes increased production of:
(a) Hormones (b) Urea (c) Lactic acid (d) None of these
Q.9 Briefly account for (02 marks each)
(a) What is hepatitis?
(b) Why do stars twinkle?
(c) Why are cloudy nights generally warm?
(d) Why there is a small space between the joints of railway tracks?
(e) Why pure water is not a strong electrolyte?
Q.10 Write briefly about any FIVE of the following: (02 marks each)
(a) Entropy (b) Crystalline solids (c) Escape Velocity (d) Vaccines (e) Natural gas (f) Microcomputer
Q.11 Differentiate between any FIVE of the following: (02 marks each)
(a) Stars and Planets (b) Autopsy and biopsy (c) Alloy and Amalgam (d) Normal salt and Basic salt (e) Hardware and Software (f) Crude oil and residual oil
Q.12(a) What are the Optical fibers and on which principle they work? Describe their few uses. (05 marks)
(b) What is the significance of Vitamins? Describe the source and deficiency symptoms of fat soluble vitamins. (05 marks)
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