General Science and Ability CSS-2014

EVERYDAY SCIENCE

Select the best option/answer and fill in the appropriate Box on the Answer Sheet:

1. Who was the early dentist and also inventor of many surgical instruments

(a) Avicenna                                                                    (b) Al-Zahrawi (Abulcasis)

(c) Ibn al-Haytham                                                         (d) Al-Jahiz

2. The echo of Big Bang can be heard in the form of:

(a) Cosmic rays                                                             (b) Gamma rays

(c) Microwave radio signals                                 (d) Infrared radiations

. Omar Khayyam was a:

(a) Poet                               (b) Mathematician            (c) Astronomer                 (d) All of these

4. Who was the first Muslim mathematician who used “Zero”?

(a) Ahmad ibn al-Baitar                                                (b) lbn Rusted

(c) Ibn al-Haytham                                                          (d) Al Khwarizmi

5. Why some nebulae shine?

(a) Because they emit light                                          (b) Due to burning process

(c) Because they contain bright stars                         (d) Because they reflect light

6. A shooting star is:

(a) Sun                                (b) A comet                        (c) A meteor                     (d) An asteroid

A ‘clinical death’ takes place when:

(a) There is no pulse                                                       (b) There is no heartbeat

12. The major cause of land pollution is:

(a) Pesticides                                                                   (b) Chemical fertilizers

(c) Insecticides                                                                 (d) All of these

13. The sharp-bitter taste of unripe fruits is due to high concentration of:

(a) Phenolic compounds                                             (b) Volatile compounds

(c) Organic acids                                                            (d) Starch

14. The use of antibiotic is a very effective way of killing disease causing bacteria. Sometim people don’t finish all of their pills. This can result in:

• Some bacteria left unkilled
• Production of more bacteria
• Bacteria is becoming sensitive to antibiotic
• Bacteria becoming resistant to antibiotics

15. Flesh Caters are called:

(a) Omnivores                    (b) Carnivores               (c) Herbivores                   (d) Scavengers

16. Chromosomes arc made up of:

(a) DNA only                                                                  (b) DNA and RNA

(c) Proteins only                                                             (d) DNA, RNA and Proteins only

17. Plants can be made disease resistant by:

(a) Heat treatment                                                            (b) Hormone treatment

(c) Cinnanomum treatment                                         (d) Breeding with their wild relatives

18. Important ingredient used in vicks vapor rub is obtained from the plant:

(a) Cinanomum camphora                                       (b) Cinnamomum zeylanicum

(c) Curcuma                                                                      (d) All of these

19. Which of the following is both endocrine and exocrine gland?

(a) Thyroid                          (b) Pancreas                    (c) Parathyroid                 (d) All of these

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27. The quickest, most readily available source of energy for the body is:

(a) Protein                          (b) Carbohydrate           (c) Lipid                             (d) Vitamins

28. The sum of the kinetic energy and potential energy of an oscillating body is:

(a) Maximum in the beginning                                    (b) Constant at all points

(c) Maximum at midway of the path                          (d) Minimum in the beginning

29. Which term in psychology is generally used to refer to emotional disorders such as anxiety, depression and phobia?

(a) Psyches                         (b) Hypnosis                     (c) Neurosis                     (d) Mental illness

30. All Alkali metals react with water to form:

(a) Oxides                          (b) Peroxides                     (c) Hydroxides                (d) Hyper oxides

31. LASER is an acronym for:

• Light amplification by standard emission of light
• Light absorption stimulated entrance of radiation
• Light amplification by stimulated emission of radiation
• Light absorption by standard emission of radiation

32. If carbon dioxide is passed through lime water for a long time, the cloudy white colour (initially formed) disappears because of the formation of:

(a) Calcium bicarbonate                                                (b) Calcium hydroxide

(c) Calcium carbonate                                                    (d) Calcium Sulphate

33. Permanent hardness of water is due to the presence of:

(a) Calcium bicarbonate                                             (b) Magnesium bicarbonate

(c) Calcium sulphate                                                    (d) Sodium bicarbonate

34. Articles made of copper and bronze slowly tarnish in air and turn green; the green colour

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40. The minimum number of bits required to store hexadecimal number AF is: (a) 2 (b) 4               (c) 8                (d) 16
41. Which of the following minerals is most resistant to chemical weathering? (a) Olivine (b) tLar-U     (c) Hornblende                   (d) Potassium feldspar
42. If an igneous rock cuts across a sedimentary rock, we know that the igneous rock is:

(a) Older than the sedimentary rock                           (b) Younger than the sedimentary rock

(c) The same age as the sedimentary rock                 (d) A minimum of 1.2 million years old

43. The discipline which deals with the understanding and treatment of mental health is called:

(a) Applied psychology                                               (b) Clinical psychology

(c) Psychoanalysis                                                          (d) Psychiatry

44. Overcooking of food should be avoided because’overcooking:

(a) Makes the food difficult to digest                       (b) Makes the food

(c) Increase the nutritive value of food                      (d) Reduces the nutritive value of food

45. Optical fibre operates on the principle of:

(a) Tyndall effect                                                             (b) Photoelectric effect

(c) Laser technology                                                       (d) Total internal reflection

46. The sensation of the skin is perceived by:

(a) Epidermis                    (b) The dermis                   (c) Endodermis                (d) None of these

47. The loudness of^–sound depends on its:

(a) Wavelength                  (b) Frequency                    (c) Amplitude                  (d) All of these

48. A prison standing in front of a mirror finds his image smaller than him and erect. This implies that the mirror is:

(a) Plane                              (b) Concave                      (c) Convex                        (d) Not of good quality

The densities of three liquids are D, 2D, 3D. What will be the density –` “